Pad electrode and electronic component device

Abstract

The pad electrode has a first electrode portion and a second electrode portion formed integrally with the first electrode portion. The first electrode portion has a first edge located outward of the electronic component in a second direction and has a first length in a third direction longer than the electronic component. The second electrode portion has a second edge located opposite the first edge in the first direction and overlapping the electronic component in the second direction. A boundary between the first electrode portion and the second electrode portion is located inward of an end of the electronic component in the first direction. A second length of the second edge in the third direction is equal to or less than a length of the second electrode portion in the third direction. In the second electrode portion, the second length, a third length in the third direction along the boundary, and a fourth length in the third direction between the second edge and the boundary in the first direction satisfy the following relationships: 0 < the second length ≤ the fourth length ≤ the third length < the first length.

Description

Technical Field

[0001] This disclosure relates to pad electrodes and electronic component devices. Background Technology

[0002] Japanese Patent Application Publication No. 2004-228444 discloses an electronic component device (electronic component mounting structure) comprising: an electronic component (chip component) having a pair of electrodes; a pair of pads disposed separately on a circuit board; and solder that bonds the pair of electrodes and the pair of pads. Summary of the Invention

[0003] One aspect of this disclosure provides a pad electrode on which an electronic component is mounted. The electronic component includes: a body having a pair of end faces facing each other in a first direction, a pair of main faces facing each other in a second direction, a pair of side faces facing each other in a third direction, and ridge portions located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes, each including ridge portions on one of the pair of end faces. The pad electrode includes a first electrode portion and a second electrode portion integrally formed with the first electrode portion. The first electrode portion has a first edge located further outward than the electronic component when viewed from the second direction when the electronic component is mounted. The first length in the third direction is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction, is opposite to the first edge in the first direction and overlaps with the electronic component when the electronic component is mounted. The boundary between the first electrode portion and the second electrode portion, when viewed from the second direction, is located inside the electronic component than the end of the electronic component in the first direction when the electronic component is mounted. The second length in the third direction of the second edge is less than or equal to the length of the body in the third direction. In the second electrode portion, the second length, the third length in the third direction along the boundary, and the fourth length in the third direction between the second edge and the boundary in the first direction satisfy the following relationship:

[0004] 0 < second length ≤ fourth length ≤ third length < first length. Attached Figure Description

[0005] Figure 1 It is a three-dimensional diagram showing the structure of an electronic component device.

[0006] Figure 2A This is a diagram showing the electronic components viewed from one end face. Figure 2B This is a diagram showing the electronic components viewed from the other end face.

[0007] Figure 3 This is a diagram showing the pad electrodes.

[0008] Figure 4 It is a diagram showing the dimensions of the various parts of an electronic component.

[0009] Figure 5 This is a diagram showing the state of electronic components when they are positioned on the pad electrodes.

[0010] Figure 6 It is a three-dimensional diagram that enlarges a portion of an electronic component device.

[0011] Figure 7 Observing from the second direction Figure 6 The image.

[0012] Figure 8 This is a diagram illustrating the state in which electronic components are arranged on pad electrodes in an electronic component device according to another embodiment.

[0013] Figure 9 This is a diagram illustrating the state in which electronic components are arranged on pad electrodes in an electronic component device according to another embodiment.

[0014] Figure 10 This is a diagram illustrating the state in which electronic components are arranged on pad electrodes in an electronic component device according to another embodiment.

[0015] Figure 11 This is a diagram illustrating the state in which electronic components are arranged on pad electrodes in an electronic component device according to another embodiment.

[0016] Figure 12 This is a diagram showing the state in which electronic components are arranged on pad electrodes in a modified electronic component device.

[0017] Figure 13 This is a diagram showing the electronic components from a second perspective. Detailed Implementation

[0018] [The problem this disclosure aims to solve]

[0019] As an electronic component, there is an electronic component comprising: a body having a pair of opposing end faces, a pair of opposing main faces, a pair of opposing side faces, and ridge portions located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes, each of which includes a ridge portion on one of the pair of end faces. The external electrodes disposed on the ridge portions, for example, have a shape with rounded corners that bend along the ridge portions. When the external electrodes of this electronic component are soldered to pad electrodes, if the substrate, etc., on which the pad electrodes are disposed flexes, stress (flexural stress) concentrates on the portion of the ridge portion of the external electrodes (edge ​​portion), and cracks may occur in the body. To address this, if the pad electrodes are miniaturized (the overall width is narrowed) to suppress stress concentration, preventing solder from forming on the portion of the ridge portion of the external electrodes, the reduced amount of solder leads to a decrease in the bonding strength between the electronic component (external electrodes) and the pad electrodes.

[0020] One aspect of this disclosure is to provide a pad electrode and electronic component device that can ensure bonding strength while suppressing stress concentration.

[0021] [Effects of this disclosure]

[0022] According to one aspect of this disclosure, it is possible to ensure the strength of the bond while suppressing stress concentration.

[0023] [Description of embodiments disclosed herein]

[0024] First, the contents of the embodiments of this disclosure will be described. At least some of the embodiments described below may be combined arbitrarily.

[0025] (1) One aspect of this disclosure provides a pad electrode on which an electronic component is mounted. The electronic component comprises: a body having a pair of end faces facing each other in a first direction, a pair of main faces facing each other in a second direction, a pair of side faces facing each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes, each of which includes a ridge portion on one of the pair of end faces. The pad electrode comprises a first electrode portion and a second electrode portion integrally formed with the first electrode portion. The first electrode portion has a first edge located outside the electronic component when viewed from the second direction when the electronic component is mounted. The first length in the third direction is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction, is opposite to the first edge in the first direction and overlaps with the electronic component when the electronic component is installed. The boundary between the first electrode portion and the second electrode portion, when viewed from the second direction, is located inside the electronic component than the end of the electronic component in the first direction when the electronic component is installed. The second length in the third direction of the second edge is less than or equal to the length of the body in the third direction. In the second electrode portion, the second length, the third length along the boundary in the third direction, and the fourth length in the third direction between the second edge and the boundary in the first direction satisfy the following relationship:

[0026] 0 < second length ≤ fourth length ≤ third length < first length.

[0027] In the pad electrode of this disclosure, the second electrode portion satisfies the above-described relationship. In this structure, when an electronic component is mounted, the second electrode portion does not overlap with the edge of the external electrode disposed on the ridge portion when viewed from a second direction. Therefore, when an electronic component is soldered onto the pad electrode, solder does not form at the edge of the external electrode on the ridge portion. Thus, even if the substrate, such as the one on which the pad electrode is disposed, flexes, there is no solder between the pad electrode and the edge of the external electrode on the ridge portion, thereby suppressing stress concentration at the edge of the external electrode. Therefore, in the electronic component mounted on the pad electrode, cracks in the substrate due to stress concentration at the external electrode can be suppressed.

[0028] In the pad electrode of this disclosure, the first electrode portion has a first edge located further outward than the electronic component when viewed from a second direction when an electronic component is mounted, and its first length in a third direction is longer than that of the electronic component. Therefore, when an electronic component is mounted on the pad electrode, solder is formed between the first electrode portion and the external electrode, ensuring a sufficient amount of solder. Thus, the bonding strength of the electronic component (external electrode) relative to the pad electrode can be ensured.

[0029] (2) In the pad electrodes of (1) above, the second electrode may also satisfy the following relationship:

[0030] 0 < second length = fourth length = third length < first length, and

[0031] It has a convex shape in which the second electrode portion protrudes from the first electrode portion. In this structure, when electronic components are mounted on the pad electrode, when viewed from the second direction, the edge of the outer electrode disposed on the ridge portion and the second electrode portion can be made to not overlap.

[0032] (3) In the pad electrode of (2) above, the first electrode portion may have: a third edge extending from one end of the extension direction of the first edge along a first direction; a fourth edge extending from the other end of the extension direction of the first edge along a first direction; a fifth edge extending from the other end of the extension direction of the third edge opposite to the end connected to the first edge along a third direction; and a sixth edge extending from the other end of the extension direction of the fourth edge opposite to the end connected to the first edge along a third direction; and the second electrode portion may have: a seventh edge extending from the other end of the extension direction of the fifth edge opposite to the end connected to the third edge along a first direction; and an eighth edge extending from the other end of the extension direction of the sixth edge opposite to the end connected to the fourth edge along a third direction. The other end extends along the first direction. The fifth edge and the seventh edge intersect at the first intersection point, and the sixth edge and the eighth edge intersect at the second intersection point. The first intersection point and the second intersection point are respectively set based on the origin, based on the length Ly extending from the origin along the first direction and the length Lx extending from the origin along the third direction. The origin is the intersection point of an imaginary line extending along the side of the external electrode along the first direction when viewed from the second direction when the electronic component is installed, and an imaginary line extending along the third direction on the inner edge of the external electrode. When the thickness of the external electrode in the third direction is set to T1, the radius of curvature of the ridge portion of the substrate is set to R, and the dimension of the electronic component in the third direction is set to W, the length Ly satisfies the following relationship:

[0033] Ly≥T1+R and W / 2>T1+R, and

[0034] When the dimension of the external electrode in the first direction is set as X, the radius of curvature of the substrate is set as R, and the thickness of the external electrode in the first direction is set as T2, the length Lx satisfies the following relationship:

[0035] Lx≥X-(R+T2)and X>X-(R+T2).

[0036] In this structure, when viewed from the second direction, the edge of the outer electrode and the second electrode portion disposed on the ridge portion can be made to not overlap.

[0037] (4) In the pad electrodes described in (3) above, the fifth and sixth edges may be located at the end face of the ridge portion when viewed from the second direction when electronic components are mounted. In this structure, the external electrode and the second electrode portion disposed on the ridge portion do not overlap. As a result, when electronic components are soldered onto the pad electrodes, no solder is formed on the external electrode on the ridge portion. Therefore, even if the substrate or the like with the pad electrodes is flexed, there is no solder between the pad electrodes and the external electrode on the ridge portion, thus suppressing stress concentration at the edge of the external electrode.

[0038] (5) In any of the pad electrodes described in (1) to (4) above, the second edge, when viewed from the second direction when the electronic component is mounted, may be located closer to the inside of the electronic component than the edge of the external electrode in the first direction. In this structure, the overlap area between the second electrode and the external electrode is increased. As a result, the area for solder wetting and propagation is expanded, further improving the bonding strength of the electronic component relative to the pad electrode. Moreover, by forming the pad electrode, the rigidity of the periphery of the pad electrode is increased, thus reducing the deflection of the substrate near the electronic component and consequently reducing the stress. As a result, the reliability of the electronic component is improved because the formation of cracks in the substrate is suppressed.

[0039] (6) One aspect of this disclosure provides a pad electrode on which an electronic component is mounted, the electronic component comprising: a body having a pair of end faces facing each other in a first direction, a pair of main faces facing each other in a second direction, a pair of side faces facing each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes, each of which includes a ridge portion on one of the pair of end faces, wherein the pad electrode comprises a first electrode portion and a second electrode portion integrally formed therewith, the first electrode portion having a first edge located outside the electronic component when viewed from the second direction when the electronic component is mounted, and The first length in the third direction is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction, is opposite to the first edge in the first direction and overlaps with the electronic component when the electronic component is installed. The boundary between the first electrode portion and the second electrode portion, when viewed from the second direction, is located inside the electronic component than the end of the electronic component in the first direction when the electronic component is installed. The second length in the third direction of the second edge is less than or equal to the length of the body in the third direction. In the second electrode portion, the second length, the third length along the boundary in the third direction, and the fourth length in the third direction between the second edge and the boundary in the first direction satisfy the following relationship:

[0040] 0 < second length < fourth length < third length ≤ first length.

[0041] In the pad electrode of this disclosure, the second electrode portion satisfies the above-described relationship. In this structure, when an electronic component is mounted, the second electrode portion does not overlap with the edge of the external electrode disposed on the ridge portion when viewed from a second direction. Therefore, when an electronic component is soldered onto the pad electrode, solder does not form at the edge of the external electrode on the ridge portion. Thus, even if the substrate, such as the one on which the pad electrode is disposed, flexes, there is no solder between the pad electrode and the edge of the external electrode on the ridge portion, thereby suppressing stress concentration at the edge of the external electrode. Therefore, in the electronic component mounted on the pad electrode, cracks in the substrate due to stress concentration at the external electrode can be suppressed.

[0042] In the pad electrode of this disclosure, the first electrode portion has a first edge located further outward than the electronic component when viewed from a second direction when an electronic component is mounted, and its first length in a third direction is longer than that of the electronic component. Therefore, when an electronic component is mounted on the pad electrode, solder is formed between the first electrode portion and the external electrode, ensuring a sufficient amount of solder. Thus, the bonding strength of the electronic component (external electrode) relative to the pad electrode can be ensured.

[0043] (7) One aspect of this disclosure provides an electronic component device comprising an electronic component and pad electrodes on which the electronic component is soldered, wherein the electronic component comprises: a body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes, each of which includes a ridge portion on each of the pair of end faces, and the pad electrodes comprising a first electrode portion and a second electrode portion integrally formed therewith, the first electrode portion having a portion located between the electronic component and the pad electrode portion when viewed from the second direction. The first electrode portion has an outermost first edge, and its third-direction first length is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from a second direction, is opposite to the first edge in a first direction and overlaps with the electronic component. The boundary between the first electrode portion and the second electrode portion, when viewed from a second direction, is located inside the electronic component than the end of the electronic component in the first direction. The second length of the second edge in a third-direction is less than or equal to the third-direction length of the component. In the second electrode portion, the second length, the third length along the boundary in a third-direction, and the fourth length along the third direction between the second edge and the boundary in the first direction satisfy the following relationship:

[0044] 0 < second length ≤ fourth length ≤ third length < first length.

[0045] In the electronic component device of this disclosure, the second electrode portion satisfies the above-described relationship. In this structure, the second electrode portion, when viewed from the second direction, does not overlap with the edge of the external electrode disposed on the ridge portion. Therefore, in the electronic component device, no solder forms on the edge of the external electrode on the ridge portion. Thus, even if the substrate, such as the one with the pad electrodes, flexes, there is no solder between the pad electrodes and the edge of the external electrode on the ridge portion, thereby suppressing stress concentration on the external electrode. Therefore, in the electronic component device, in an electronic component mounted on pad electrodes, cracks in the substrate due to stress concentration on the external electrode can be suppressed.

[0046] In the electronic component device of this disclosure, the first electrode portion has a first edge located further outward than the electronic component when viewed from a second direction, and its first length in a third direction is longer than that of the electronic component. Therefore, in the electronic component device, because solder is formed between the first electrode portion and the external electrode, the amount of solder can be ensured. Thus, in the electronic component device, the bonding strength of the electronic component (external electrode) relative to the pad electrode can be ensured.

[0047] (8) One aspect of this disclosure provides an electronic component device comprising an electronic component and pad electrodes on which the electronic component is soldered, wherein the electronic component comprises: a body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes, each of which includes a ridge portion on each of the pair of end faces, and the pad electrodes comprising a first electrode portion and a second electrode portion integrally formed therewith, the first electrode portion having a portion located between the electronic component and the pad electrode portion when viewed from the second direction. The first electrode portion has an outermost first edge, and its third-direction first length is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from a second direction, is opposite to the first edge in a first direction and overlaps with the electronic component. The boundary between the first electrode portion and the second electrode portion, when viewed from a second direction, is located inside the electronic component than the end of the electronic component in the first direction. The second length of the second edge in a third-direction is less than or equal to the third-direction length of the component. In the second electrode portion, the second length, the third length along the boundary in a third-direction, and the fourth length along the third direction between the second edge and the boundary in the first direction satisfy the following relationship:

[0048] 0 < second length < fourth length < third length ≤ first length.

[0049] In the electronic component device of this disclosure, the second electrode portion satisfies the above-described relationship. In this structure, the second electrode portion, when viewed from the second direction, does not overlap with the edge of the external electrode disposed on the ridge portion. Therefore, in the electronic component device, no solder forms on the edge of the external electrode on the ridge portion. Thus, even if the substrate, such as the one with the pad electrodes, flexes, there is no solder between the pad electrodes and the edge of the external electrode on the ridge portion, thereby suppressing stress concentration on the external electrode. Therefore, in the electronic component device, in an electronic component mounted on pad electrodes, cracks in the substrate due to stress concentration on the external electrode can be suppressed.

[0050] In the electronic component device of this disclosure, the first electrode portion has a first edge located further outward than the electronic component when viewed from a second direction, and its first length in a third direction is longer than that of the electronic component. Therefore, in the electronic component device, because solder is formed between the first electrode portion and the external electrode, the amount of solder can be ensured. Thus, in the electronic component device, the bonding strength of the electronic component (external electrode) relative to the pad electrode can be ensured.

[0051] (9) One aspect of this disclosure provides a pad electrode on which an electronic component is mounted, the electronic component comprising: a body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes, each of which includes a ridge portion on each of the pair of end faces, wherein the pad electrode comprises a first electrode portion and a second electrode portion integrally formed with the first electrode portion, the first electrode portion having a first edge located outside the electronic component when viewed from a second direction when the electronic component is mounted, and a first length in a third direction longer than the electronic component, the second electrode portion having a second edge, the second edge being opposite to the first edge in a first direction when viewed from a second direction when the electronic component is mounted, and overlapping the electronic component, the boundary between the first electrode portion and the second electrode portion being within the size range of the first direction of the external electrode when viewed from a second direction when the electronic component is mounted.

[0052] (10) In the pad electrode of (9) above, the first electrode portion may have: a third edge extending from one end of the extension direction of the first edge along a first direction; a fourth edge extending from the other end of the extension direction of the first edge along a first direction; a fifth edge extending from the other end of the extension direction of the third edge opposite to the end connected to the first edge along a third direction; and a sixth edge extending from the other end of the extension direction of the fourth edge opposite to the end connected to the first edge along a third direction. The second electrode portion has: a seventh edge extending from the other end of the extension direction of the fifth edge opposite to the end connected to the third edge along a first direction; and an eighth edge extending from the other end of the extension direction of the sixth edge opposite to the end connected to the fourth edge along a first direction. The fifth edge and the seventh edge intersect at a first intersection point, and the sixth edge and the eighth edge intersect at a second intersection point. When the electronic component is installed, the first intersection point and the second intersection point are located inside the third dimension of the substrate when viewed from the second direction.

[0053] (11) One aspect of this disclosure provides an electronic component device comprising an electronic component and a pad electrode on which the electronic component is soldered, wherein the electronic component comprises: a body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes having ridge portions on each of the pair of end faces; the pad electrode comprising a first electrode portion and a second electrode portion integrally formed with the first electrode portion; the first electrode portion having a first edge located outside the electronic component when viewed from a second direction, and having a first length in a third direction longer than the electronic component; the second electrode portion having a second edge that is opposite to the first edge in the first direction when viewed from a second direction and overlaps with the electronic component; the boundary between the first electrode portion and the second electrode portion being located inside the electronic component at an end in the first direction when viewed from a second direction, and within the size range of the first direction of the external electrode.

[0054] (12) In the electronic component device of (11) above, the first electrode portion may have: a third edge extending from one end of the extension direction of the first edge along a first direction; a fourth edge extending from the other end of the extension direction of the first edge along a first direction; a fifth edge extending from the other end of the extension direction of the third edge opposite to the end connected to the first edge along a third direction; and a sixth edge extending from the other end of the extension direction of the fourth edge opposite to the end connected to the first edge along a third direction. The second electrode portion has: a seventh edge extending from the other end of the extension direction of the fifth edge opposite to the end connected to the third edge along a first direction; and an eighth edge extending from the other end of the extension direction of the sixth edge opposite to the end connected to the fourth edge along a first direction. The fifth edge and the seventh edge intersect at a first intersection point, and the sixth edge and the eighth edge intersect at a second intersection point. When the electronic component is installed, the first intersection point and the second intersection point are located inside the third dimension of the substrate when viewed from the second direction.

[0055] [Details of the embodiments disclosed herein]

[0056] Specific examples of embodiments of the present disclosure will now be described with reference to the accompanying drawings. This disclosure is not limited to these examples, but is defined by the claims and is intended to include all modifications within the same meaning and scope as the claims. In the description of the drawings, the same reference numerals are used to refer to the same elements, and repeated descriptions are omitted.

[0057] Figure 1 It is a three-dimensional diagram showing the structure of electronic components. For example... Figure 1As shown, the electronic component device 100 includes an electronic component 1 and two pad electrodes 10. The electronic component 1 may be, for example, a capacitor. The electronic component 1 may also be a component other than a capacitor.

[0058] like Figure 1 As shown, the electronic component 1 includes a cuboid-shaped body 2 and a pair of external electrodes 3 and 4. The external electrodes 3 and 4 are disposed on the outer surface of the body 2. The external electrodes 3 and 4 are separate from each other. The cuboid shape includes a cuboid shape with chamfered corners and edges, and a cuboid shape with rounded corners and edges.

[0059] The base body 2 has a pair of end faces 2a and 2b facing each other, a pair of main faces 2c and 2d facing each other, and a pair of side faces 2e and 2f facing each other. The direction in which the pair of end faces 2a and 2b face each other is a first direction D1. The direction in which the pair of main faces 2c and 2d face each other is a second direction D2. The direction in which the pair of side faces 2e and 2f face each other is a third direction D3. The electronic component 1 is soldered and mounted to an electronic device. The electronic device may include, for example, a circuit board or electronic components. In the electronic component 1, the main face 2d faces the electronic device. The main face 2d is configured to constitute a mounting surface. The main face 2d is a mounting surface. Alternatively, one of the main face 2c, side faces 2e and 2f may be configured to constitute a mounting surface.

[0060] The first direction D1 is orthogonal to end faces 2a and 2b, and parallel to main faces 2c and 2d and side faces 2e and 2f. The second direction D2 is orthogonal to main faces 2c and 2d, and parallel to end faces 2a and 2b and side faces 2e and 2f. The third direction D3 is orthogonal to side faces 2e and 2f, and parallel to end faces 2a and 2b and main faces 2c and 2d. The first direction D1, the second direction D2, and the third direction D3 are mutually orthogonal. In this embodiment, the length of the base body 2 in the first direction D1 is greater than the length of the base body 2 in the second direction D2, and also greater than the length of the base body 2 in the third direction D3. The first direction D1 is the direction of the long side of the base body 2. The lengths of the base body 2 in the second direction D2 and the third direction D3 can also be equal. Alternatively, the lengths of the base body 2 in the second direction D2 and the third direction D3 can be different.

[0061] The length of the first direction D1 of the body 2 is the length of the body 2. The length of the second direction D2 of the body 2 is the height of the body 2. The length of the third direction D3 of the body 2 is the width of the body 2.

[0062] The base body 2 has four edge portions 2g, 2h, 2i, and 2j. Edge portion 2g is located between the main face 2c and the side face 2e. Edge portion 2h is located between the main face 2c and the side face 2f. Edge portion 2i is located between the main face 2d and the side face 2e. Edge portion 2j is located between the main face 2d and the side face 2f. In this embodiment, the edge portions 2g, 2h, 2i, and 2j are rounded in a curved manner. The base body 2 is subjected to a so-called R-beveling process. The main face 2c and the side faces 2e and 2f are indirectly adjacent via edge portions 2g and 2h. The main face 2d and the side faces 2e and 2f are indirectly adjacent via edge portions 2i and 2j. The base body 2 may also have other edge portions. The base body 2 may also have edge portions located between the end face 2a and each of the pair of main faces 2c and 2d, and between the end face 2a and each of the pair of side faces 2e and 2f. Alternatively, the base body 2 may also have a ridge portion located between the end face 2b and each of the pair of main faces 2c and 2d, and between the end face 2b and each of the pair of side faces 2e and 2f.

[0063] The substrate 2 is composed of multiple dielectric layers stacked in the second direction D2. The substrate 2 has multiple stacked dielectric layers. In the substrate 2, the stacking direction of the multiple dielectric layers is consistent with the second direction D2. Each dielectric layer is, for example, a sintered body of a ceramic green sheet containing a dielectric material. The dielectric material includes, for example, dielectric ceramics such as BaTiO3, CaZrO3, Ba(Ti,Zr)O3, or (Ba,Ca)TiO3. In the actual substrate 2, each dielectric layer is integrated to the point that the boundaries between the dielectric layers are indistinguishable.

[0064] Electronic component 1 has multiple internal electrodes (not shown). Each internal electrode is an internal conductor disposed within the body 2. Each internal electrode is made of a conductive material commonly used as an internal conductor in multilayer electronic components. The conductive material may include, for example, a base metal. The conductive material may include, for example, Ni or Cu. The internal electrode is made of a sintered body containing a conductive paste comprising the aforementioned conductive material.

[0065] Figure 2A This is a view of electronic component 1 from end face 2a. (See diagram.) Figure 2A As shown, the external electrode 3 is disposed on the end face 2a side of the substrate 2. In this embodiment, the external electrode 3 is disposed on the end face 2a, a pair of main faces 2c and 2d, and a pair of side faces 2e and 2f. The external electrode 3 has multiple electrode portions 3a, 3b, 3c, 3d, and 3e. Electrode portion 3a is disposed on the end face 2a. Electrode portion 3b is disposed on the main face 2c. Electrode portion 3c is disposed on the main face 2d. Electrode portion 3d is disposed on the side face 2e. Electrode portion 3e is disposed on the side face 2f.

[0066] The external electrode 3 has an electrode portion 3f located between electrode portions 3b and 3d, an electrode portion 3g located between electrode portions 3b and 3e, an electrode portion 3h located between electrode portions 3c and 3d, and an electrode portion 3i located between electrode portions 3c and 3e. Electrode portions 3f, 3g, 3h, and 3i are disposed on the ridge portions 2g, 2h, 2i, and 2j of the substrate 2. The electrode portions 3f, 3g, 3h, and 3i are rounded at the ridge portions 2g, 2h, 2i, and 2j of the substrate 2 in a curved manner.

[0067] Figure 2B This is a view of electronic component 1 from end face 2b. (See diagram.) Figure 2B As shown, the external electrode 4 is disposed on the end face 2b side of the substrate 2. In this embodiment, the external electrode 4 is disposed on the end face 2b, a pair of main faces 2c and 2d, and a pair of side faces 2e and 2f. The external electrode 4 has a plurality of electrode portions 4a, 4b, 4c, 4d, and 4e. Electrode portion 4a is disposed on the end face 2b. Electrode portion 4b is disposed on the main face 2c. Electrode portion 4c is disposed on the main face 2d. Electrode portion 4d is disposed on the side face 2e. Electrode portion 4e is disposed on the side face 2f.

[0068] The external electrode 4 has an electrode portion 4f located between electrode portions 4b and 4d, an electrode portion 4g located between electrode portions 4b and 4e, an electrode portion 4h located between electrode portions 4c and 4d, and an electrode portion 4i located between electrode portions 4c and 4e. Electrode portions 4f, 4g, 4h, and 4i are disposed on the ridge portions 2g, 2h, 2i, and 2j of the substrate 2. The electrode portions 4f, 4g, 4h, and 4i are rounded at the ridge portions 2g, 2h, 2i, and 2j of the substrate 2 in a curved manner.

[0069] like Figure 1 As shown, two pad electrodes 10 are disposed on an electronic device S. The two pad electrodes 10 are disposed separately on the electronic device S. The two pad electrodes 10 have the same structure and dimensions. Hereinafter, the structure and dimensions will be described in detail using one pad electrode 10 as an example. Figure 3 This is a diagram showing the pad electrode 10. Figure 3 The first direction D1 and the third direction D3 shown correspond to the first direction D1 and the third direction D3 of the electronic component 1 when the electronic component 1 is mounted on the pad electrode 10.

[0070] like Figure 3As shown, in this embodiment, the pad electrode 10 is convex. The pad electrode 10 is made of a conductive material. The conductive material includes, for example, Cu, Ag, etc. The pad electrode 10 includes a first electrode portion 10A and a second electrode portion 10B. The first electrode portion 10A and the second electrode portion 10B are both rectangular in shape. The first electrode portion 10A and the second electrode portion 10B are integrally formed. Alternatively, the pad electrode 10 may be described as including the area of ​​the first electrode portion 10A and the second electrode portion 10B.

[0071] The pad electrode 10 has a first edge 11, a second edge 12, a third edge 13, a fourth edge 14, a fifth edge 15, a sixth edge 16, a seventh edge 17, and an eighth edge 18. In this embodiment, the first edge 11, the second edge 12, the third edge 13, the fourth edge 14, the fifth edge 15, the sixth edge 16, the seventh edge 17, and the eighth edge 18 extend in a straight line.

[0072] First edge 11 extends along a third direction D3. Second edge 12 extends along a third direction. First edge 11 and second edge 12 are opposite each other in a first direction D1. Third edge 13 extends along the first direction D1. Third edge 13 extends from one end of first edge 11 to one end of fifth edge 15. Fourth edge 14 extends along the first direction D1. Fourth edge 14 extends from the other end of first edge 11 to one end of sixth edge 16. Third edge 13 and fourth edge 14 are opposite each other in a third direction D3.

[0073] Fifth edge 15 extends along the third direction D3. Fifth edge 15 extends from the other end of third edge 13. Fifth edge 15 is opposite to first edge 11 in the first direction D1. Sixth edge 16 extends along the third direction D3. Sixth edge 16 extends from the other end of fourth edge 14. Sixth edge 16 is opposite to first edge 11 in the first direction D1. Fifth edge 15 and sixth edge 16 are on the same straight line in the third direction D3. Seventh edge 17 extends along the first direction D1. Seventh edge 17 extends from the other end of fifth edge 15 to one end of second edge 12. Eighth edge 18 extends along the first direction D1. Eighth edge 18 extends from one end of sixth edge 16 to the other end of second edge 12. Seventh edge 17 and eighth edge 18 are opposite to each other in the third direction D3.

[0074] The fifth edge 15 and the seventh edge 17 form corners in the pad electrode 10. The sixth edge 16 and the eighth edge 18 form corners in the pad electrode 10.

[0075] The length L1 of the third-direction D3 of the first edge 11 is longer than the length L2 of the third-direction D3 of the second edge 12 (L1 > L2). The length L1 of the third-direction D3 of the first edge 11 is equivalent to the length L9 between the third edge 13 and the fourth edge 14 on the third-direction D3. The length L2 of the third-direction D3 of the second edge 12 is equivalent to the length L10 between the seventh edge 17 and the eighth edge 18 on the third-direction D3.

[0076] The length L3 of the first direction D1 of the third edge 13 is the same as the length L4 of the first direction D1 of the fourth edge 14 (L3 = L4). The length L3 of the first direction D1 of the third edge 13 is equivalent to the length between the first edge 11 and the fifth edge 15 in the first direction D1. The length L4 of the first direction D1 of the fourth edge 14 is equivalent to the length between the first edge 11 and the sixth edge 16 in the first direction D1.

[0077] The length L5 of the third direction D3 of the fifth edge 15 is the same as the length L6 of the third direction D3 of the sixth edge 16 (L5 = L6). The length L7 of the first direction D1 of the seventh edge 17 is the same as the length L8 of the first direction D1 of the eighth edge 18 (L7 = L8). The length L7 of the first direction D1 of the seventh edge 17 is equivalent to the length between the second edge 12 and the fifth edge 15 on the first direction D1. The length of the first direction D1 of the eighth edge 18 is equivalent to the length between the second edge 12 and the sixth edge 16 on the first direction D1.

[0078] The length L11 (third length) between the first intersection point P1 of the fifth edge 15 and the seventh edge 17, and the second intersection point P2 of the sixth edge 16 and the eighth edge 18, and the length L2 of the second edge 12, as well as the length L10 (fourth length) between the seventh edge 17 and the eighth edge 18 on the third direction D3, are the same (L11 = L2 = L10). The straight line connecting the first intersection point P1 and the second intersection point P2 is the boundary B between the first electrode part 10A and the second electrode part 10B. Boundary B is the boundary defined by the imaginary straight line connecting the first intersection point P1 and the second intersection point P2. The first intersection point P1 is the connecting part of the fifth edge 15 and the seventh edge 17, and is the point where the extension direction of the fifth edge 15 intersects the extension direction of the seventh edge 17 (bending point). The second intersection point P2 is the connecting part of the sixth edge 16 and the eighth edge 18, and is the point where the extension direction of the sixth edge 16 intersects the extension direction of the eighth edge 18 (bending point). The length L10 is the length along the third direction D3 between the second edge 12 and the boundary B in the first direction D1. The length L10 can also be the length at the midpoint between the second edge 12 and the boundary B in the first direction D1.

[0079] The second electrode section 10B satisfies the following relationship.

[0080] 0 < length L2 ≤ length L1 0 ≤ length L1 11 < length L1

[0081] In this embodiment, lengths L2, L10, and L11 are the same length. Lengths L2, L10, and L11 are shorter than length L1. That is, in this embodiment, the second electrode portion 10B satisfies the following relationship.

[0082] 0 < length L2 = length L10 = length L11 < length L1

[0083] Figure 4 This is a diagram showing the dimensions of each part of electronic component 1. The position of the first intersection point P1 of the pad electrodes 10 can be set based on the dimensions of electronic component 1. By setting the position of the first intersection point P1 of the pad electrodes 10, the length L5 of the fifth edge 15 and the length L7 of the seventh edge 17 can be set. The first intersection point P1 is set with the origin SP as a reference. The origin SP is the intersection of an imaginary line extending along the side 3S of the outer electrode 3 (4) in the first direction D1 and an imaginary line extending along the third direction D3 of the inner edge 3E of the outer electrode 3 (4). The first intersection point P1 is the point located diagonally opposite the origin SP in an imaginary rectangle defined by the length Lx of the first direction D1 with the origin SP as the base and the length Ly of the third direction D3 with the origin SP as the base.

[0084] The length Ly can be set based on the thickness T1 of the third direction D3 of the external electrode 3 (4), the radius of curvature R of the edge portion of the body 2, and the dimension W of the third direction D3 of the electronic component 1 (external electrode 3 (4)). Specifically, the length Ly is set to satisfy the following relationship.

[0085] Ly≥T1+R and W / 2>T1+R

[0086] The length Lx can be set based on the dimension X of the first direction D1 of the external electrode 3 (4), the radius of curvature R of the edge portion of the body 2, and the thickness T2 of the first direction D1 of the external electrode 3 (4). Specifically, the length Lx is set to satisfy the following relationship.

[0087] Lx≥X-(R+T2)and X>X-(R+T2)

[0088] The first intersection point P1 is set based on the lengths Ly and Lx, which are set to satisfy all the above relationships (Ly≥T1+R and W / 2>T1+R, and Lx≥X-(R+T2) and X>X-(R+T2)). If the first intersection point P1 is set, then the fifth edge 15 and the seventh edge 17 are set so that the fifth edge 15 and the seventh edge 17 intersect at the first intersection point P1. The position of the second intersection point P2 can also be set in the same way as the first intersection point P1.

[0089] The position of the first intersection point P1 of the pad electrode 10 can also be set as follows. Specifically, when the dimension of the first direction D1 of the electronic component 1 is set to L, the dimension of the third direction D3 of the electronic component 1 is set to W, and the dimension of the first direction D1 of the external electrode 3 (4) of the electronic component 1 is set to X, the length Lx and the length Ly are set to satisfy the following formula.

[0090] Ly≥-0.0076+0.0444L+0.0118W+0.1698W (Upper limit: W / 2, Lower limit: 0)

[0091] Lx≥-0.0124-0.0444L-0.0118W+0.3802W (Upper limit: X-T2, Lower limit: 0)

[0092] The first intersection point P1 is set based on the lengths Ly and Lx, which are set to satisfy the above relationship. The position of the second intersection point P2 can also be set in the same way as the first intersection point P1.

[0093] The first electrode portion 10A is configured to include a first edge 11, a third edge 13, a fourth edge 14, a fifth edge 15, and a sixth edge 16. The second electrode portion 10B is configured to protrude from the first electrode portion 10A. The second electrode portion 10B is configured to include a second edge 12, a seventh edge 17, and an eighth edge 18.

[0094] Figure 5 This diagram shows the state of electronic component 1 when it is positioned on pad electrode 10. (Example) Figure 5 As shown, when an electronic component 1 is disposed (mounted) on the pad electrode 10, the pad electrode 10, viewed from the second direction D2, has a portion (area) that overlaps with the electronic component 1 and a portion that does not overlap with the electronic component 1. The first electrode portion 10A of the pad electrode 10, when the electronic component 1 is disposed (mounted) on the pad electrode 10, has a portion that does not overlap with the electronic component 1. The first edge 11 of the pad electrode 10, viewed from the second direction D2, is located outside the electronic component 1 in the first direction D1. The third edge 13 and the fourth edge 14 of the pad electrode 10, viewed from the second direction D2, are located outside the electronic component 1 in the third direction D3.

[0095] When an electronic component 1 is disposed on the pad electrode 10, the second electrode portion 10B of the pad electrode 10 overlaps with the electronic component 1. That is, when the electronic component 1 is disposed on the pad electrode 10, the second electrode portion 10B is not exposed when viewed from the second direction D2. The pad electrode 10 does not have a region that overlaps (opposite to) the edge portions E of the electrode portions 3i and 3h of the external electrode 3. When viewed from the second direction D2, the fifth edge 15 and the sixth edge 16 of the pad electrode 10 are located at positions that overlap with the substrate 2 and the external electrode 3.

[0096] The seventh edge 17 and the eighth edge 18 of the pad electrode 10, when viewed from the second direction D2, are located closer to the inside of the electronic component 1 than the end of the electronic component 1 in the first direction D1. The seventh edge 17 and the eighth edge 18 can also be located at the same position as the end of the electronic component 1 in the first direction D1. That is, the seventh edge 17 and the eighth edge 18 only need to be located at the end position of the electronic component 1 in the first direction D1 or closer to the inside of the end position of the electronic component 1 in the first direction D1. In this embodiment, the seventh edge 17 and the eighth edge 18 are located at the ends of the end faces 2a and 2b of the ridge portions 2i and 2j in the first direction D1.

[0097] The length L1 (L10) of the first electrode portion 10A of the pad electrode 10 is larger than the size W of the electronic component 1 (external electrode 3). The length L2 (L10, L11) of the second electrode portion 10B of the pad electrode 10 is smaller than the size W of the electronic component 1. The length L2 of the second electrode portion 10B is smaller than the size W1 of the body 2.

[0098] Figure 6 It is a three-dimensional view showing an enlarged portion of the electronic component device 100. Figure 7 Observed from the second direction D2 Figure 6 The image. (For example) Figure 6 and Figure 7 As shown, if electronic component 1 is soldered onto pad electrode 10, solder H is formed on a portion of electrode portion 3a, electrode portion 3c, electrode portion 3e, and electrode portion 3d of external electrode 3 (not shown). In electronic component device 100, solder H is not formed on the edge portion E of electrode portion 3i and electrode portion 3h of external electrode 3. Similarly, if electronic component 1 is soldered onto pad electrode 10, solder H is formed on a portion of electrode portion 4a, electrode portion 4c, electrode portion 4e, and electrode portion 4d of external electrode 4. In electronic component device 100, solder H is not formed on the edge portion E of electrode portion 4i and electrode portion 4h of external electrode 4.

[0099] As explained above, in the electronic component device 100 of this embodiment, the second electrode portion 10B of the pad electrode 10 satisfies the following relationship:

[0100] 0 < length L2 ≤ length L1 0 ≤ length L1 1 < length L1.

[0101] In this structure, the second electrode portion 10B, viewed from the second direction D2, does not overlap with the edges E of the external electrodes 3 and 4 disposed on the ridge portions 2i and 2j. Therefore, in the electronic component device 100, no solder forms on the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j. Thus, even if the electronic device S on which the pad electrode 10 is disposed flexes, no solder exists between the pad electrode 10 and the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j, thereby suppressing stress concentration on the edges E of the external electrodes 3 and 4. Therefore, in the electronic component device 100, in the electronic component 1 mounted on the pad electrode 10, cracks in the substrate 2 caused by stress concentration on the external electrodes 3 and 4 can be suppressed.

[0102] In the electronic component assembly 100, when the electronic component 1 is mounted on the pad electrode 10, the first electrode portion 10A has a first edge 11 located further outward than the electronic component 1 when viewed from the second direction D2, and its length L11 in the third direction D3 is longer than the dimension W of the electronic component 1. Therefore, when the electronic component 1 is mounted on the pad electrode 10, because solder H is formed between the first electrode portion 10A and the external electrodes 3 and 4, the amount of solder H can be ensured. Thus, in the electronic component assembly 100, the bonding strength of the electronic component 1 (external electrodes 3 and 4) relative to the pad electrode 10 can be ensured.

[0103] As described above, the embodiments of the present invention have been explained, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from its spirit.

[0104] In the above embodiment, the convex shape of the pad electrode 10 was used as an example for explanation. However, the shape of the pad electrode 10 is not limited to a convex shape.

[0105] Figure 8 This diagram illustrates the state in which electronic components are arranged on pad electrodes in an electronic component device according to another embodiment. (As shown...) Figure 8 As shown, the pad electrode 20 includes a first electrode portion 20A and a second electrode portion 20B. The first electrode portion 20A is rectangular. The second electrode portion 20B is trapezoidal. The first electrode portion 20A and the second electrode portion 20B are integrally formed.

[0106] The pad electrode 20 has a first edge 21, a second edge 22, a third edge 23, a fourth edge 24, a fifth edge 25, and a sixth edge 26.

[0107] First edge 21 extends along a third direction D3. Second edge 22 extends along a third direction. First edge 21 and second edge 22 are opposite each other in a first direction D1. Third edge 23 extends along the first direction D1. Third edge 23 extends from one end of first edge 21 to one end of fifth edge 25. Fourth edge 24 extends along the first direction D1. Fourth edge 24 extends from the other end of first edge 21 to one end of sixth edge 26. Third edge 23 and fourth edge 24 are opposite each other in a third direction D3.

[0108] The fifth edge 25 extends obliquely relative to the first direction D1 (along the directions intersecting both the first direction D1 and the third direction D3). The fifth edge 25 extends from the other end of the third edge 23 to one end of the second edge 22. The sixth edge 26 extends obliquely relative to the first direction D1 (along the directions intersecting both the first direction D1 and the third direction D3). The sixth edge 26 extends from the other end of the fourth edge 24 to the other end of the second edge 22. The fifth edge 25 and the sixth edge 26 extend in a manner that gradually narrows towards the second edge 22.

[0109] The length L21 of the third direction D3 of the first edge 21 is longer than the length L22 of the third direction D3 of the second edge 22 (L21 > L22). The length L21 of the third direction D3 of the first edge 21 is equivalent to the length L25 between the third edge 23 and the fourth edge 24 on the third direction D3. The length L23 of the first direction D1 of the third edge 23 is the same as the length L24 of the first direction D1 of the fourth edge 24 (L23 = L24).

[0110] The lengths (third lengths) L27 between the second intersection point P21 of the third edge 23 and the fifth edge 25, and the second intersection point P22 of the fourth edge 24 and the sixth edge 26, and the length L22 of the second edge 22, as well as the length (fourth length) L26 between the fifth edge 25 and the sixth edge 26 on the third direction D3, are all different. The straight line connecting the second intersection points P21 and P22 is the boundary B between the first electrode portion 20A and the second electrode portion 20B. Boundary B is defined by the imaginary straight line connecting the second intersection points P21 and P22. The second intersection point P21 is the connecting part of the third edge 23 and the fifth edge 25, and is the point (bending point) where the extension direction of the third edge 23 intersects the extension direction of the fifth edge 25. The second intersection point P22 is the connecting part of the fourth edge 24 and the sixth edge 26, and is the point (bending point) where the extension direction of the fourth edge 24 intersects the extension direction of the sixth edge 26. Length L26 is the length along the third direction D3 between the second edge 22 and the boundary B in the first direction D1. Length L26 is also the length along the third direction D3 at the points where the fifth edge 25 intersects with the body 2 and the sixth edge 26 intersects with the body 2.

[0111] The second electrode section 20B satisfies the following relationship.

[0112] 0 < length L22 < length L26 < length L27, and length L21 > length L26

[0113] In this configuration, length L22 is shorter than length L26 (L22 < L26). Length L26 is shorter than length L27 (L26 < L27). Length L27 is the same as length L21 (L27 = L21). That is, the second electrode portion 20B satisfies the following relationship.

[0114] 0 < length L22 < length L26 < length L27 = length L21

[0115] In the electronic component device 100 equipped with the above-described pad electrode 20, the second electrode portion 20B of the pad electrode 20 satisfies the following relationship:

[0116] 0 < length L22 < length L26 < length L27, and length L21 > length L26.

[0117] In this structure, the second electrode portion 20B, viewed from the second direction D2, does not overlap with the edges E of the external electrodes 3 and 4 disposed on the ridge portions 2i and 2j. Therefore, in the electronic component device 100, no solder forms on the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j. Thus, even if the electronic device S on which the pad electrode 20 is disposed flexes, no solder exists between the pad electrode 20 and the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j, thereby suppressing stress concentration on the edges E of the external electrodes 3 and 4. Therefore, in the electronic component device 100, in the electronic component 1 mounted on the pad electrode 20, cracks in the substrate 2 caused by stress concentration on the external electrodes 3 and 4 can be suppressed.

[0118] In the electronic component assembly 100, the first electrode portion 20A of the pad electrode 20, viewed from the second direction D2, has a first edge 21 located further outward than the electronic component 1, and its length L25 in the third direction D3 is longer than the dimension W of the electronic component 1. Therefore, in the electronic component assembly 100, since solder H is formed between the first electrode portion 20A and the external electrodes 3 and 4, the amount of solder H can be ensured. Thus, the bonding strength of the electronic component 1 (external electrodes 3 and 4) relative to the pad electrode 20 can be ensured.

[0119] Figure 9 This diagram illustrates the state in which electronic components are arranged on pad electrodes in an electronic component device according to another embodiment. (As shown...) Figure 9 As shown, the pad electrode 30 includes a first electrode portion 30A and a second electrode portion 30B. The first electrode portion 30A and the second electrode portion 30B are integrally formed.

[0120] The pad electrode 30 has a first edge 31, a second edge 32, a third edge 33, a fourth edge 34, a fifth edge 35, and a sixth edge 36.

[0121] First edge 31 extends along a third direction D3. Second edge 32 extends along a third direction. First edge 31 and second edge 32 are opposite each other in a first direction D1. Third edge 33 extends along the first direction D1. Third edge 33 extends from one end of first edge 31 to one end of fifth edge 35. Fourth edge 34 extends along the first direction D1. Fourth edge 34 extends from the other end of first edge 31 to one end of sixth edge 36. Third edge 33 and fourth edge 34 are opposite each other in a third direction D3.

[0122] The fifth edge 35 is curved. The fifth edge 35 is concave. The fifth edge 35 extends from the other end of the third edge 33 to one end of the second edge 32. The sixth edge 36 is curved. The sixth edge 36 is concave. The sixth edge 36 extends from the other end of the fourth edge 34 to the other end of the second edge 32. The fifth edge 35 and the sixth edge 36 extend in a manner that gradually narrows towards the second edge 32.

[0123] The length L31 of the third direction D3 of the first edge 31 is longer than the length L32 of the third direction D3 of the second edge 32 (L31 > L32). The length L31 of the third direction D3 of the first edge 31 is equivalent to the length L35 between the third edge 33 and the fourth edge 34 on the third direction D3. The length L33 of the first direction D1 of the third edge 33 is the same as the length L34 of the first direction D1 of the fourth edge 34 (L33 = L34).

[0124] The lengths (third length) L37 between the intersection point P31 of the third edge 33 and the fifth edge 35, and the intersection point P32 of the fourth edge 34 and the sixth edge 36, and the length L32 of the second edge 32, as well as the length (fourth length) L36 between the fifth edge 35 and the sixth edge 36 on the third direction D3, are all different. The straight line connecting the intersection points P31 and P32 is the boundary B between the first electrode portion 30A and the second electrode portion 30B. Boundary B is defined by the imaginary straight line connecting the intersection points P31 and P32. Intersection point P31 is the connecting part of the third edge 33 and the fifth edge 35, and is the point where the extension direction of the third edge 33 intersects the extension direction of the fifth edge 35 (bending point). Intersection point P32 is the connecting part of the fourth edge 34 and the sixth edge 36, and is the point where the extension direction of the fourth edge 34 intersects the extension direction of the sixth edge 36 (bending point). Length L36 is the length along the third direction D3 in the first direction D1 between the second edge 32 and the boundary B. Length L36 is also the length of the third direction D3 at the points where the fifth edge 35 intersects with the body 2 and the sixth edge 36 intersects with the body 2.

[0125] The second electrode section 30B satisfies the following relationship.

[0126] 0 < length L32 < length L36 < length L37, and length L31 > length L36

[0127] In this configuration, length L32 is shorter than length L36 (L32 < L36). Length L36 is shorter than length L37 (L36 < L37). Length L37 is the same as length L31 (L37 = L31). That is, the second electrode portion 30B satisfies the following relationship.

[0128] 0 < length L32 < length L36 < length L37 = length L31

[0129] In the electronic component device 100 equipped with the above-described pad electrode 30, the second electrode portion 30B of the pad electrode 30 satisfies the following relationship:

[0130] 0 < length L32 < length L36 < length L37, and length L31 > length L36.

[0131] In this structure, the second electrode portion 30B, viewed from the second direction D2, does not overlap with the edges E of the external electrodes 3 and 4 disposed on the ridge portions 2i and 2j. Therefore, in the electronic component device 100, no solder forms on the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j. Thus, even if the electronic device S on which the pad electrode 30 is disposed flexes, no solder exists between the pad electrode 30 and the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j, thereby suppressing stress concentration on the edges E of the external electrodes 3 and 4. Therefore, in the electronic component device 100, in the electronic component 1 mounted on the pad electrode 30, cracks in the substrate 2 caused by stress concentration on the external electrodes 3 and 4 can be suppressed.

[0132] In the electronic component assembly 100, the first electrode portion 30A of the pad electrode 30, viewed from the second direction D2, has a first edge 31 located further outward than the electronic component 1, and its length L35 in the third direction D3 is longer than the dimension W of the electronic component 1. Therefore, in the electronic component assembly 100, because solder H is formed between the first electrode portion 30A and the external electrodes 3 and 4, the amount of solder H can be ensured. Thus, in the electronic component assembly 100, the bonding strength of the electronic component 1 (external electrodes 3 and 4) relative to the pad electrode 30 can be ensured.

[0133] Figure 10 This diagram illustrates the state in which electronic components are arranged on pad electrodes in an electronic component device according to another embodiment. (As shown...) Figure 10 As shown, the pad electrode 40 includes a first electrode portion 40A and a second electrode portion 40B. The first electrode portion 40A and the second electrode portion 40B are integrally formed.

[0134] The pad electrode 40 has a first edge 41, a second edge 42, a third edge 43, a fourth edge 44, a fifth edge 45, and a sixth edge 46.

[0135] First edge 41 extends along a third direction D3. Second edge 42 extends along a third direction. First edge 41 and second edge 42 are opposite each other in a first direction D1. Third edge 43 extends along the first direction D1. Third edge 43 extends from one end of first edge 41 to one end of fifth edge 45. Fourth edge 44 extends along the first direction D1. Fourth edge 44 extends from the other end of first edge 41 to one end of sixth edge 46. Third edge 43 and fourth edge 44 are opposite each other in a third direction D3.

[0136] The fifth edge 45 is curved. The fifth edge 45 is convexly curved. The fifth edge 45 extends from the other end of the third edge 43 to one end of the second edge 42. The sixth edge 46 is curved. The sixth edge 46 is convexly curved. The sixth edge 46 extends from the other end of the fourth edge 44 to the other end of the second edge 42. The fifth edge 45 and the sixth edge 46 extend in a manner that gradually narrows towards the second edge 42.

[0137] The length L41 of the third direction D3 of the first edge 41 is longer than the length L42 of the third direction D3 of the second edge 42 (L41 > L42). The length L41 of the third direction D3 of the first edge 41 is equivalent to the length L45 between the third edge 43 and the fourth edge 44 on the third direction D3. The length L43 of the first direction D1 of the third edge 43 is the same as the length L44 of the first direction D1 of the fourth edge 44 (L43 = L44).

[0138] The lengths (third lengths) L47 between the intersection point P41 of the third edge 43 and the fifth edge 45, and the intersection point P42 of the fourth edge 44 and the sixth edge 46, and the length L42 of the second edge 42, as well as the length (fourth length) L46 between the fifth edge 45 and the sixth edge 46 on the third direction D3, are all different. The straight line connecting the intersection points P41 and P42 is the boundary B between the first electrode portion 40A and the second electrode portion 40B. Boundary B is defined by the imaginary straight line connecting the intersection points P41 and P42. Intersection point P41 is the connecting part of the third edge 43 and the fifth edge 45, and is the point where the extension direction of the third edge 43 intersects the extension direction of the fifth edge 45 (bending point). Intersection point P42 is the connecting part of the fourth edge 44 and the sixth edge 46, and is the point where the extension direction of the fourth edge 44 intersects the extension direction of the sixth edge 46 (bending point). Length L46 is the length along the third direction D3 between the second edge 42 and the boundary B in the first direction D1. Length L46 is also the length along the third direction D3 at the points where the fifth edge 45 intersects with the body 2 and the sixth edge 46 intersects with the body 2.

[0139] The second electrode section 40B satisfies the following relationship.

[0140] 0 < length L42 < length L46 < length L47, and length L41 > length L46

[0141] In this configuration, length L42 is shorter than length L46 (L42 < L46). Length L46 is shorter than length L47 (L46 < L47). Length L47 is the same as length L41 (L47 = L41). That is, the second electrode portion 40B satisfies the following relationship.

[0142] 0 < length L42 < length L46 < length L47 = length L41

[0143] In the electronic component device 100 equipped with the above-described pad electrode 40, the second electrode portion 40B of the pad electrode 40 satisfies the following relationship:

[0144] 0 < length L42 < length L46 < length L47, and length L41 > length L46.

[0145] In this structure, the second electrode portion 40B, viewed from the second direction D2, does not overlap with the edges E of the external electrodes 3 and 4 disposed on the ridge portions 2i and 2j. Therefore, in the electronic component device 100, no solder forms on the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j. Thus, even if the electronic device S on which the pad electrode 40 is disposed flexes, no solder exists between the pad electrode 40 and the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j, thereby suppressing stress concentration on the edges E of the external electrodes 3 and 4. Therefore, in the electronic component device 100, in the electronic component 1 mounted on the pad electrode 40, cracks in the substrate 2 caused by stress concentration on the external electrodes 3 and 4 can be suppressed.

[0146] In the electronic component assembly 100, the first electrode portion 40A of the pad electrode 40, viewed from the second direction D2, has a first edge 41 located further outward than the electronic component 1, and its length L45 in the third direction D3 is longer than the dimension W of the electronic component 1. Therefore, in the electronic component assembly 100, because solder H is formed between the first electrode portion 40A and the external electrodes 3 and 4, the amount of solder H can be ensured. Thus, in the electronic component assembly 100, the bonding strength of the electronic component 1 (external electrodes 3 and 4) relative to the pad electrode 40 can be ensured.

[0147] Figure 11 This diagram illustrates the state in which electronic components are arranged on pad electrodes in an electronic component device according to another embodiment. (As shown...) Figure 11 As shown, the pad electrode 50 includes a first electrode portion 50A and a second electrode portion 50B. The first electrode portion 50A and the second electrode portion 50B are integrally formed.

[0148] The pad electrode 50 has a first edge 51, a second edge 52, a third edge 53, a fourth edge 54, a fifth edge 55, a sixth edge 56, a seventh edge 57, and an eighth edge 58.

[0149] First edge 51 extends along a third direction D3. Second edge 52 extends along a third direction. First edge 51 and second edge 52 are opposite each other in a first direction D1. Third edge 53 extends along the first direction D1. Third edge 53 extends from one end of first edge 51 to one end of fifth edge 55. Fourth edge 54 extends along the first direction D1. Fourth edge 54 extends from the other end of first edge 51 to one end of sixth edge 56. Third edge 53 and fourth edge 54 are opposite each other in a third direction D3.

[0150] Fifth edge 55 is curved. Fifth edge 55 is concave. Fifth edge 55 extends from the other end of third edge 53 to one end of seventh edge 57. Sixth edge 56 is curved. Sixth edge 56 is concave. Sixth edge 56 extends from the other end of fourth edge 54 to one end of eighth edge 58. Fifth edge 55 and sixth edge 56 extend in a manner that gradually narrows towards second edge 52. Seventh edge 57 extends in a straight line from one end of fifth edge 55 to one end of second edge 52. Eighth edge 58 extends in a straight line from one end of sixth edge 56 to the other end of second edge 52.

[0151] The length L51 of the third direction D3 of the first edge 51 is longer than the length L52 of the third direction D3 of the second edge 52 (L51 > L52). The length L51 of the third direction D3 of the first edge 51 is equivalent to the length L57 between the third edge 53 and the fourth edge 54 on the third direction D3. The length L53 of the first direction D1 of the third edge 53 is the same as the length L54 of the first direction D1 of the fourth edge 54 (L53 = L54).

[0152] The length L57 between the intersection point P51 of the third edge 53 and the fifth edge 55, and the intersection point P52 of the fourth edge 54 and the sixth edge 56 (the third length), and the length L52 of the second edge 52, as well as the length L56 between the seventh edge 57 and the eighth edge 58 in the third direction D3 (the fourth length), are all different. The straight line connecting the intersection points P51 and P52 is the boundary between the first electrode portion 50A and the second electrode portion 50B. Boundary B is the boundary defined by the imaginary straight line connecting the intersection points P51 and P52. Intersection point P51 is the connecting part of the third edge 53 and the fifth edge 55, and is the point where the extension direction of the third edge 53 intersects the extension direction of the fifth edge 55 (the bending point). Intersection point P52 is the connecting part of the fourth edge 54 and the sixth edge 56, and is the point where the extension direction of the fourth edge 54 intersects the extension direction of the sixth edge 56 (the bending point). Length L56 is the length of the second edge 52 and the boundary along the third direction D3 in the first direction D1. The length L56 is the length of the third direction D3 at the point where the seventh edge 57 intersects with the body 2 and the point where the eighth edge 58 intersects with the body 2.

[0153] The second electrode section 50B satisfies the following relationship.

[0154] 0 < length L52 < length L56 < length L57, and length L51 is greater than length L56.

[0155] In this configuration, length L52 is shorter than length L56 (L52 < L56). Length L56 is shorter than length L57 (L56 < L57). Length L57 is the same as length L51 (L57 = L51). That is, the second electrode portion 50B satisfies the following relationship.

[0156] 0 < length L52 < length L56 < length L57 = length L51

[0157] In the electronic component device 100 equipped with the above-described pad electrode 50, the second electrode portion 50B of the pad electrode 50 satisfies the following relationship:

[0158] 0 < length L52 < length L56 < length L57, and length L51 is greater than length L56.

[0159] In this structure, the second electrode portion 50B, viewed from the second direction D2, does not overlap with the edges E of the external electrodes 3 and 4 disposed on the ridge portions 2i and 2j. Therefore, in the electronic component device 100, no solder forms on the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j. Thus, even if the electronic device S on which the pad electrode 50 is disposed flexes, there is no solder between the pad electrode 50 and the edges E of the external electrodes 3 and 4 on the ridge portions 2i and 2j, thereby suppressing stress concentration on the edges E of the external electrodes 3 and 4. Therefore, in the electronic component device 100, in the electronic component 1 mounted on the pad electrode 50, cracks in the substrate 2 caused by stress concentration on the external electrodes 3 and 4 can be suppressed.

[0160] In the electronic component assembly 100, the first electrode portion 50A of the pad electrode 50, viewed from the second direction D2, has a first edge 51 located further outward than the electronic component 1, and its length L57 in the third direction D3 is longer than the dimension W of the electronic component 1. Therefore, in the electronic component assembly 100, because solder H is formed between the first electrode portion 50A and the external electrodes 3 and 4, the amount of solder H can be ensured. Thus, when the electronic component 1 is mounted on the pad electrode 50, the bonding strength of the electronic component 1 (external electrodes 3 and 4) relative to the pad electrode 50 can be ensured.

[0161] Furthermore, in the pad electrode 50, the edge connecting the third edge 53 to the second edge 52 and the edge connecting the fourth edge 54 to the second edge 52 can also be composed of multiple straight lines, curves, etc.

[0162] In the above embodiment, the first, third, and fourth edges are described as straight lines. However, the first, third, and fourth edges are not limited to being straight lines; they can also be curved, etc.

[0163] In the above embodiment, when the electronic component 1 is mounted on the pad electrode 10, the second edge 12 of the pad electrode 10 may extend in the first direction D1 closer to the inner side (central side) of the electronic component 1 than the edge E of the external electrodes 3 and 4. In other words, when the electronic component 1 is mounted on the pad electrode 10, when viewed from the second direction D2, the second edge 12 of the pad electrode 10 may also be located between the external electrode 3 and the external electrode 4.

[0164] Figure 12 This is a diagram showing the state in which electronic components are arranged on pad electrodes in a modified electronic component device. Figure 13 This is a diagram showing the modified electronic component device viewed from a second direction. (Example) Figure 12 and Figure 13 As shown, pad electrode 60 and Figure 3The pad electrode 10 shown is similarly configured to include a first electrode portion 60A and a second electrode portion 60B. The basic shape of the pad electrode 60 is the same as that of the pad electrode 10, except that the second electrode portion 60B extends further inward in the first direction D1 (toward the center of the electronic component 1).

[0165] Specifically, when the electronic component 1 is mounted on the pad electrode 60, the second edge 62 of the pad electrode 60 extends in the first direction D1 closer to the inside of the electronic component 1 than the edge E of the external electrode 3 (4). Thus, the second electrode portion 60B, in addition to covering the end faces 2a and 2b of the external electrode 3 (4), also has a region extending along the main surface 2d toward the center of the electronic component 1. In this structure, the length of the second electrode portion 60B in the third direction D3 is also set to the length W1 of the body 2 in the third direction D3 (see reference). Figure 4 Below. In addition, in order to prevent the pair of pad electrodes 60 provided for mounting electronic components 1 from coming into contact with each other and causing an electrical short circuit, the length of the second electrode portion 60B extending inward in the first direction D1 is set within a range that can ensure a specified interval.

[0166] In this structure, the overlap area between the second electrode portion 60B and the external electrode 3 (4) is increased. Therefore, the solder H (refer to...) Figure 6 The expanded wetting and propagation area further enhances the bonding strength of the electronic component 1 relative to the pad electrode 60. Furthermore, by forming the pad electrode 60, the rigidity around the pad electrode 60 is increased, thus reducing the deflection of the substrate near the electronic component 1 and consequently reducing the stress. Therefore, because crack formation in the substrate 2 is suppressed, the reliability of the electronic component 1 can be improved.

[0167] The width of the second electrode portion 60B in the third direction D3 is set in the same manner as in the above embodiment, so that it does not overlap with the edge portions E of the external electrodes 3 and 4 on the ridge portions 2i and 2j. Therefore, in this modified example, even if the electronic device S flexes, stress concentration at the edge portions E of the external electrodes 3 and 4 can be suppressed. That is, according to the modified example, while maintaining the effect of suppressing stress concentration, the bonding strength can be further improved by increasing the solder joint area.

[0168] The above-mentioned modifications can also be applied to pad electrodes 20, 30, 40, and 50.

Claims

1. A pad electrode on which an electronic component is mounted, the electronic component comprising: a body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes disposed with the ridge portions respectively included on the pair of end face sides, wherein, The pad electrode has a first electrode portion and a second electrode portion integrally formed with the first electrode portion. The first electrode portion has a first edge located further outward than the electronic component when viewed from the second direction when the electronic component is mounted, and its third-direction first length is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction when the electronic component is mounted, is opposite to the first edge in the first direction and overlaps with the electronic component. When the electronic component is installed, the boundary between the first electrode portion and the second electrode portion is located inside the electronic component when viewed from the second direction, compared to the end of the electronic component in the first direction. The second length of the second edge in the third direction is less than or equal to the length of the third direction of the matrix. In the second electrode portion, the second length, the third length along the third direction of the boundary, and the fourth length of the second edge and the boundary along the third direction between the first direction satisfy the following relationship: 0 < the second length ≤ the fourth length ≤ the third length < the first length.

2. The pad electrode according to claim 1, wherein, The second electrode portion satisfies the following relationship: 0 < the second length = the fourth length = the third length < the first length, and It has a convex shape in which the second electrode portion protrudes from the first electrode portion.

3. The pad electrode according to claim 2, wherein, The first electrode portion has a third edge that extends along the first direction from one end of the first edge extending in the direction of extension; A fourth edge extends along the first direction from the other end of the extension direction of the first edge; The fifth edge extends along the third direction from the other end opposite to the end connected to the first edge in the direction of extension of the third edge; And a sixth edge, which extends along the third direction from the other end opposite to the end connected to the first edge in the extension direction of the fourth edge. The second electrode portion has a seventh edge, which extends along the first direction from the other end opposite to the end connected to the third edge in the extension direction of the fifth edge; And an eighth edge, which extends along the first direction from the opposite end of the end connected to the fourth edge in the direction of extension of the sixth edge. The fifth edge and the seventh edge intersect at the first intersection point. The sixth edge and the eighth edge intersect at the second intersection point. The first intersection point and the second intersection point are respectively set based on the origin, using the length Ly extending from the origin along the first direction and the length Lx extending from the origin along the third direction. The origin is the intersection of an imaginary line extending along the side of the external electrode along the first direction when viewed from the second direction when the electronic component is installed, and an imaginary line extending along the third direction at the inner edge of the external electrode. When the thickness of the third direction of the external electrode is set to T1, the radius of curvature of the edge portion of the substrate is set to R, and the dimension of the third direction of the electronic component is set to W, the length Ly satisfies the following relationship: Ly≥T1+R and W / 2>T1+R, and When the dimension of the external electrode in the first direction is set as X, the radius of curvature of the body is set as R, and the thickness of the external electrode in the first direction is set as T2, the length Lx satisfies the following relationship: Lx≥X-(R+T2)and X>X-(R+T2).

4. The pad electrode according to claim 3, wherein, The fifth and sixth edges are located on the end face side of the ridge portion when viewed from the second direction when the electronic component is installed.

5. The pad electrode according to claim 1 or 2, wherein, When the electronic component is installed, the second edge, when viewed from the second direction, is located inside the electronic component, which is inside the edge of the external electrode in the first direction.

6. A pad electrode on which an electronic component is mounted, the electronic component comprising: a body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes disposed with the ridge portions respectively included on the pair of end face sides, wherein... The pad electrode has a first electrode portion and a second electrode portion integrally formed with the first electrode portion. The first electrode portion has a first edge located further outward than the electronic component when viewed from the second direction when the electronic component is mounted, and its third-direction first length is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction when the electronic component is mounted, is opposite to the first edge in the first direction and overlaps with the electronic component. When the electronic component is installed, the boundary between the first electrode portion and the second electrode portion is located inside the electronic component when viewed from the second direction, compared to the end of the electronic component in the first direction. The second length of the second edge in the third direction is less than or equal to the length of the third direction of the matrix. In the second electrode portion, the second length, the third length along the third direction of the boundary, and the fourth length of the second edge and the boundary along the third direction between the first direction satisfy the following relationship: 0 < the second length < the fourth length < the third length ≤ the first length.

7. An electronic component device comprising electronic components and solder pads on which the electronic components are soldered and mounted, wherein, The electronic component includes: A basic body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and A pair of external electrodes, each comprising the ridge portion on one of the pair of end face sides, are configured to... The pad electrode has a first electrode portion and a second electrode portion integrally formed with the first electrode portion. The first electrode portion has a first edge located further outward than the electronic component when viewed from the second direction, and its first length in the third direction is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction, is opposite to the first edge in the first direction and overlaps with the electronic component. The boundary between the first electrode portion and the second electrode portion, when viewed from the second direction, is located on the inner side of the electronic component than the end of the electronic component in the first direction. The second length of the second edge in the third direction is less than or equal to the length of the third direction of the matrix. In the second electrode portion, the second length, the third length along the third direction of the boundary, and the fourth length of the second edge and the boundary along the third direction between the first direction satisfy the following relationship: 0 < the second length ≤ the fourth length ≤ the third length < the first length.

8. An electronic component device comprising electronic components and solder pads on which the electronic components are soldered and mounted, wherein, The electronic component includes: A basic body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and A pair of external electrodes, each comprising the ridge portion on one of the pair of end face sides, are configured to... The pad electrode has a first electrode portion and a second electrode portion integrally formed with the first electrode portion. The first electrode portion has a first edge located further outward than the electronic component when viewed from the second direction, and its first length in the third direction is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction, is opposite to the first edge in the first direction and overlaps with the electronic component. The boundary between the first electrode portion and the second electrode portion, when viewed from the second direction, is located on the inner side of the electronic component than the end of the electronic component in the first direction. The second length of the second edge in the third direction is less than or equal to the length of the third direction of the matrix. In the second electrode portion, the second length, the third length along the third direction of the boundary, and the fourth length of the second edge and the boundary along the third direction between the first direction satisfy the following relationship: 0 < the second length < the fourth length < the third length ≤ the first length.

9. A pad electrode on which an electronic component is mounted, the electronic component comprising: a body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and a pair of external electrodes disposed with the ridge portions respectively included on the pair of end face sides, wherein... The pad electrode has a first electrode portion and a second electrode portion integrally formed with the first electrode portion. The first electrode portion has a first edge located further outward than the electronic component when viewed from the second direction when the electronic component is mounted, and its third-direction first length is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction when the electronic component is mounted, is opposite to the first edge in the first direction and overlaps with the electronic component. The boundary between the first electrode portion and the second electrode portion is located within the size range of the first direction of the external electrode when viewed from the second direction when the electronic component is installed.

10. The pad electrode according to claim 9, wherein, The first electrode portion has a third edge that extends along the first direction from one end of the first edge extending in the direction of extension; A fourth edge extends along the first direction from the other end of the extension direction of the first edge; The fifth edge extends along the third direction from the other end opposite to the end connected to the first edge in the direction of extension of the third edge; And a sixth edge, which extends along the third direction from the other end opposite to the end connected to the first edge in the extension direction of the fourth edge. The second electrode portion has a seventh edge, which extends along the first direction from the other end opposite to the end connected to the third edge in the extension direction of the fifth edge; And an eighth edge, which extends along the first direction from the opposite end of the end connected to the fourth edge in the direction of extension of the sixth edge. The fifth edge and the seventh edge intersect at the first intersection point. The sixth edge and the eighth edge intersect at the second intersection point. When the electronic component is installed, the first intersection point and the second intersection point are located inside the third dimension of the body when viewed from the second direction.

11. An electronic component device comprising electronic components and solder pads on which the electronic components are soldered and mounted, wherein, The electronic component includes: A basic body having a pair of end faces opposite each other in a first direction, a pair of main faces opposite each other in a second direction, a pair of side faces opposite each other in a third direction, and a ridge portion located between each of the pair of main faces and the pair of side faces; and A pair of external electrodes, each comprising the ridge portion on one of the pair of end face sides, are configured to... The pad electrode has a first electrode portion and a second electrode portion integrally formed with the first electrode portion. The first electrode portion has a first edge located further outward than the electronic component when viewed from the second direction, and its first length in the third direction is longer than that of the electronic component. The second electrode portion has a second edge, which, when viewed from the second direction, is opposite to the first edge in the first direction and overlaps with the electronic component. The boundary between the first electrode portion and the second electrode portion, when viewed from the second direction, is located inside the electronic component than the end of the electronic component in the first direction, and is within the size range of the external electrode in the first direction.

12. The electronic component device according to claim 11, wherein, The first electrode portion has a third edge that extends along the first direction from one end of the first edge extending in the direction of extension; A fourth edge extends along the first direction from the other end of the extension direction of the first edge; The fifth edge extends along the third direction from the other end opposite to the end connected to the first edge in the direction of extension of the third edge; And a sixth edge, which extends along the third direction from the other end opposite to the end connected to the first edge in the extension direction of the fourth edge. The second electrode portion has a seventh edge, which extends along the first direction from the other end opposite to the end connected to the third edge in the extension direction of the fifth edge; And an eighth edge, which extends along the first direction from the opposite end of the end connected to the fourth edge in the direction of extension of the sixth edge. The fifth edge and the seventh edge intersect at the first intersection point. The sixth edge and the eighth edge intersect at the second intersection point. When the electronic component is installed, the first intersection point and the second intersection point are located inside the third dimension of the body when viewed from the second direction.

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