Electronic component

Abstract

To provide an electronic component capable of identifying a direction.SOLUTION: A coil component 1 includes an element assembly 2, a first terminal electrode 3 and a second terminal electrode 4, a first conductor 6 that is disposed at a position closer to a main surface 2c in the element assembly and electrically connected to the first terminal electrode 3 and the second terminal electrode 4, and a second conductor 7 that is disposed at a position closer to a main surface 2d in the element assembly 2 and electrically connected to the first terminal electrode 3 and the second terminal electrode 4. The element assembly 2 is formed of a material with light transmissivity. In the first conductor 6, an identification unit 13 formed of a material different from that of the first conductor 6 is provided at a first surface 6A facing the main surface 2c.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to electronic components. [Background technology]

[0002] Patent Document 1 discloses an electronic component including an insulator made of resin, a coil provided in the insulator, and a terminal electrode electrically connected to the coil and disposed on the mounting surface of the element body. The coil includes a first conductor, a second conductor, and a connection portion connecting the first conductor and the second conductor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-141945 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above electronic components, it is difficult to distinguish at a glance the surfaces of the element body other than the mounting surface on which the terminal electrodes are arranged. In particular, in electronic components, it is difficult to distinguish between the side surface of the element body and the main surface (the surface opposite the mounting surface). Therefore, in electronic components, it is difficult to identify the direction.

[0005] An object of one aspect of the present invention is to provide an electronic component capable of identifying a direction. [Means for solving the problem]

[0006] (1) An electronic component according to one aspect of the present invention comprises a base body formed by stacking a plurality of insulating layers and including a mounting surface and a main surface opposite the mounting surface, a pair of terminal electrodes arranged on the mounting surface of the base body, a first conductor arranged within the base body near the main surface and electrically connected to the pair of terminal electrodes, and a second conductor arranged within the base body near the mounting surface and electrically connected to the pair of terminal electrodes, wherein the base body is formed of a light-transmitting material, and the first conductor has an identification portion formed of a material different from the first conductor on a surface facing the main surface.

[0007] In an electronic component according to one aspect of the present invention, the element body is made of a material having optical transparency. In this configuration, the first conductor is provided with an identification portion on a surface facing the main surface, the identification portion being made of a material different from the first conductor. This allows the first conductor and the identification portion to be distinguished when the element body is viewed in the electronic component, and therefore the identification portion can be recognized. Therefore, in the electronic component, the first conductor can be recognized by the identification portion, and therefore the orientation (position) of the first conductor can be recognized. Therefore, in the electronic component, the direction (orientation) of the electronic component can be identified.

[0008] (2) In the electronic component of (1) above, the material forming the identifier may have a higher light reflectance than the material forming the first conductors. In this configuration, the first conductors and the identifier have different light reflectances, making it easier to recognize the identifier.

[0009] (3) In the electronic component of (1) or (2) above, the first conductor may be made of a material mainly composed of Cu, and the identifier may be made of a material mainly composed of Cr, Ti, or NiCr. In this configuration, the first conductor and the identifier are made of different materials, so that the first conductor and the identifier can be distinguished from each other.

[0010] (4) The electronic component according to any one of (1) to (3) above may further include a connection conductor disposed within the element body, extending in a direction in which the mounting surface and the main surface face each other, and connecting the first conductor and the second conductor. In this configuration, the first conductor, the second conductor, and the connection conductor form a coil.

[0011] (5) In any one of the electronic components (1) to (4) above, the pair of terminal electrodes may be embedded in the element body, and the surfaces of the pair of terminal electrodes may not protrude from the mounting surface. In such a configuration in which the pair of terminal electrodes are embedded in the element body, the terminal electrodes are difficult to recognize, and therefore the orientation of the electronic component is difficult to recognize at a glance. Therefore, the above configuration is particularly effective in a configuration in which the pair of terminal electrodes are embedded in the element body.

[0012] (6) An electronic component according to one embodiment of the present invention comprises a base body formed by stacking a plurality of insulating layers and including a mounting surface and a main surface opposite the mounting surface, a pair of terminal electrodes arranged on the mounting surface of the base body, a first conductor arranged within the base body near the main surface, and a second conductor arranged within the base body near the mounting surface, wherein the base body is formed of a light-transmitting material, and the distance between the first conductor and the main surface is shorter than the distance between the second conductor and the mounting surface.

[0013] In an electronic component according to one aspect of the present invention, the element body is formed of a material having optical transparency. In this configuration, the distance between the first conductor and the main surface is shorter than the distance between the second conductor and the mounting surface. As a result, when looking at the element body of the electronic component, the first conductor is easier to see than the second conductor, so that the first conductor can be recognized. Therefore, in the electronic component, the orientation (position) of the first conductor can be recognized. Therefore, in the electronic component, the direction (orientation) of the electronic component can be identified.

[0014] (7) In the electronic component of (6) above, the first conductor may not be electrically connected to the pair of terminal electrodes, and the second conductor may be electrically connected to the pair of terminal electrodes. The first conductor is a so-called dummy conductor. In this configuration, even if an inductor is formed only by the second conductor, the first conductor, which is a dummy conductor, can be recognized. Therefore, the electronic component can recognize the orientation (position) of the first conductor. Therefore, the electronic component can identify the direction (orientation) of the electronic component.

[0015] (8) In the electronic component of (6) or (7) above, the first conductors and the second conductors may be made of a material containing Cu as a main component.

[0016] (9) The electronic component of (6) may further include a connection conductor disposed within the element body, extending in a direction in which the mounting surface and the main surface oppose each other, and connecting the first conductor and the second conductor. In this configuration, the first conductor, the second conductor, and the connection conductor form a coil.

[0017] (10) In the electronic components of (6) to (9) above, the pair of terminal electrodes are embedded in the element body, and the surfaces of the pair of terminal electrodes do not have to protrude from the mounting surface. In such a configuration in which the pair of terminal electrodes are embedded in the element body, the terminal electrodes are difficult to recognize, and therefore the orientation of the electronic component is difficult to recognize at a glance. Therefore, the above configuration is particularly effective in a configuration in which the pair of terminal electrodes are embedded in the element body. Effect of the Invention

[0018] According to one aspect of the present invention, the orientation of an electronic component can be identified. [Brief description of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view of an electronic component according to a first embodiment. [Diagram 2] FIG. 2 is a side view of the electronic component shown in FIG. [Diagram 3] FIG. 3 is a view of the electronic component shown in FIG. 1 as viewed from the main surface side. [Figure 4] FIG. 4 is an enlarged view of a part of the first conductor. [Diagram 5] FIG. 5 is a perspective view of an electronic component according to the second embodiment. [Figure 6] FIG. 6 is a side view of the electronic component shown in FIG. [Figure 7] FIG. 7 is a view of the electronic component shown in FIG. 5 as viewed from the main surface side. [Figure 8] FIG. 8 is an enlarged view of a part of the first conductor. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or corresponding elements are designated by the same reference numerals, and duplicated explanations will be omitted.

[0021] [First embodiment] An electronic component according to a first embodiment will be described. Fig. 1 is a perspective view of the electronic component according to the first embodiment. Fig. 2 is a view of the electronic component shown in Fig. 1 as viewed from a side. Fig. 3 is a view of the electronic component shown in Fig. 1 as viewed from a main surface. As shown in Figs. 1 to 3, a coil component (electronic component) 1 includes an element body 2, a first terminal electrode 3 and a second terminal electrode 4, a coil 5, a first connecting conductor 10 and a second connecting conductor 11.

[0022] The element body 2 has a rectangular parallelepiped shape. The rectangular parallelepiped shape includes a rectangular parallelepiped shape with chamfered corners and ridges, and a rectangular parallelepiped shape with rounded corners and ridges. The element body 2 has a pair of end faces 2a, 2b, a pair of main faces 2c, 2d, and a pair of side faces 2e, 2f as outer surfaces. The end faces 2a, 2b face each other. The main faces 2c, 2d face each other. The side faces 2e, 2f face each other. In the following, the facing direction of the end faces 2a, 2b is a first direction D1, the facing direction of the main faces 2c, 2d is a second direction D2, and the facing direction of the side faces 2e, 2f is a third direction D3. The first direction D1, the second direction D2, and the third direction D3 are approximately perpendicular to each other.

[0023] The end faces 2a, 2b extend in the second direction D2 to connect the main faces 2c, 2d. The end faces 2a, 2b also extend in the third direction D3 to connect the side faces 2e, 2f. The main faces 2c, 2d extend in the first direction D1 to connect the end faces 2a, 2b. The main faces 2c, 2d also extend in the third direction D3 to connect the side faces 2e, 2f. The side faces 2e, 2f extend in the first direction D1 to connect the end faces 2a, 2b. The side faces 2e, 2f also extend in the second direction D2 to connect the main faces 2c, 2d.

[0024] The main surface 2d is a mounting surface, and is a surface that faces another electronic device (not shown) when the coil component 1 is mounted on the other electronic device (for example, a circuit board or an electronic component). The end surfaces 2a and 2b are surfaces that are continuous with the mounting surface (i.e., the main surface 2d).

[0025] 1 to 3, the length of the element body 2 in the first direction D1 is longer than the length of the element body 2 in the second direction D2 and the length of the element body 2 in the third direction D3. The length of the element body 2 in the second direction D2 is shorter than the length of the element body 2 in the third direction D3. That is, in this embodiment, the end faces 2a, 2b, the main faces 2c, 2d and the side faces 2e, 2f have a rectangular shape. The length of the element body 2 in the second direction D2 may be equal to the length of the element body 2 in the third direction D3 or may be longer than the length of the element body 2 in the third direction D3.

[0026] In this embodiment, "equivalent" may mean not only equal but also values ​​including slight differences or manufacturing errors within a preset range. For example, if multiple values ​​are within a range of ±5% of the average value of the multiple values, the multiple values ​​are defined as equivalent.

[0027] The element body 2 is formed by stacking multiple element body layers (insulating layers) in the second direction D2. That is, the stacking direction of the element body 2 is the second direction D2. In the actual element body 2, the multiple element body layers may be integrated to the extent that the boundaries between the layers are not visible, or may be integrated so that the boundaries between the layers are visible.

[0028] The element body 2 has visible light transmittance (transparency). The element body 2 has a predetermined light transmittance. The element body 2 is formed of a material having transmittance. The element body layer constituting the element body 2 may be, for example, a resin layer. The material of the element body layer includes, for example, at least one selected from liquid crystal polymer, polyimide resin, crystalline polystyrene, epoxy resin, acrylic resin, bismaleimide resin, and fluorine resin. The element body layer may include a filler. The filler may be, for example, an inorganic filler. An example of the inorganic filler is silica (SiO2). The element body layer may not include a filler.

[0029] The base layer may be configured to include a magnetic material. The magnetic material of the base layer may include, for example, a Ni-Cu-Zn ferrite material, a Ni-Cu-Zn-Mg ferrite material, or a Ni-Cu ferrite material. The magnetic material of the base layer may include, for example, an Fe alloy. The base layer may include, for example, a non-magnetic material. The non-magnetic material of the base layer may include, for example, a glass ceramic material or a dielectric material.

[0030] The first terminal electrode 3 and the second terminal electrode 4 are provided on the element body 2. The first terminal electrode 3 and the second terminal electrode 4 are arranged on the main surface 2d of the element body 2. The first terminal electrode 3 and the second terminal electrode 4 are provided on the element body 2 and spaced apart from each other in the first direction D1. Specifically, the first terminal electrode 3 is arranged on the end surface 2a side of the element body 2. The second terminal electrode 4 is arranged on the end surface 2b side of the element body 2.

[0031] Each of the first terminal electrode 3 and the second terminal electrode 4 may have, for example, a rectangular shape (rectangular shape). Each of the first terminal electrode 3 and the second terminal electrode 4 is arranged so that each side is along the first direction D1 or the third direction D3. As shown in FIG. 2, each of the first terminal electrode 3 and the second terminal electrode 4 has a surface flush with the main surface 2d. That is, in this embodiment, each of the first terminal electrode 3 and the second terminal electrode 4 does not protrude from the main surface 2d. The first terminal electrode 3 and the second terminal electrode 4 are formed of a conductive material (for example, Cu).

[0032] Each of the first terminal electrode 3 and the second terminal electrode 4 may be provided with a plating layer (not shown) containing, for example, Ni, Sn, Au, etc. by electrolytic plating or electroless plating. The plating layer may have, for example, a Ni plating film containing Ni and covering the first terminal electrode 3 and the second terminal electrode 4, and an Au plating film containing Au and covering the Ni plating film.

[0033] As shown in Figs. 1 to 3, the coil 5 is disposed in the element body 2. The coil 5 has a plurality of first conductors 6, a plurality of second conductors 7, and a plurality of pillars (connecting conductors) 8. The coil 5 is configured by electrically connecting the first conductors 6, the second conductors 7, and the pillars 8. The coil axis of the coil 5 is provided along the third direction D3. The first conductors 6, the second conductors 7, and the pillars 8 are formed of a conductive material. In this embodiment, the first conductors 6, the second conductors 7, and the pillars 8 are formed of a material mainly composed of Cu. The first conductors 6, the second conductors 7, and the pillars 8 are disposed away from the end faces 2a, 2b, the main faces 2c, 2d, and the side faces 2e, 2f.

[0034] Each of the first conductors 6 is disposed at a position close to the principal surface 2c of the element body 2. Each of the first conductors 6 extends along the first direction D1. Each of the first conductors 6 connects two pillars 8. The first conductors 6 are bridged across the two pillars 8. In this embodiment, the first conductors 6 are prismatic. The cross-sectional shape of the first conductors 6 is rectangular. One end of the first conductors 6 in the extension direction (the end on the end face 2a side) is connected to one end of the pillar 8 (the end on the principal surface 2c side). The other end of the first conductors 6 in the extension direction (the end on the end face 2b side) is connected to one end of the pillar 8 (the end on the principal surface 2c side).

[0035] Each of the second conductors 7 is disposed at a position close to the principal surface 2d (mounting surface) of the element body 2. Each of the second conductors 7 extends in the first direction D1. Each of the second conductors 7 connects two pillars 8. The second conductors 7 are bridged across the two pillars 8. In this embodiment, the second conductors 7 are prismatic. The cross-sectional shape of the second conductors 7 is rectangular. One end (end on the end face 2a side) of the second conductors 7 in the extension direction is connected to the other end (end on the principal surface 2d side) of the pillar 8. The other end (end on the end face 2b side) of the second conductors 7 in the extension direction is connected to the other end (end on the principal surface 2d side) of the pillar 8. The number of the multiple second conductors 7 is one less than the number of the multiple first conductors 6. That is, when the number of the first conductors 6 is n, the number of the second conductors 7 is n-1.

[0036] Each of the pillars 8 extends along the second direction D2. The pillars 8 connect the first conductors 6 and the second conductors 7. In this embodiment, the pillars 8 are prismatic. The cross-sectional shape of the pillars 8 (in a direction perpendicular to the second direction D2) is rectangular. The pillars 8 may be formed by stacking a plurality of pillar materials in the second direction D2. One end of the pillars 8 is connected to an end of the first conductors 6. The other end of the pillars 8 is connected to an end of the second conductors 7.

[0037] The first connecting conductor 10 connects the first terminal electrode 3 and one end of the coil 5. The first connecting conductor 10 is connected to the other end of the pillar 8 of the coil 5. The first connecting conductor 10 is disposed at a position closer to the end face 2a and closer to the side face 2e. The first connecting conductor 10 is made of a conductive material. The first connecting conductor 10 is made of, for example, Cu.

[0038] The second connecting conductor 11 connects the second terminal electrode 4 and the other end of the coil 5. The second connecting conductor 11 is connected to the other end of the pillar 8 of the coil 5. The second connecting conductor 11 is disposed at a position closer to the end face 2b and closer to the side face 2f. The second connecting conductor 11 is made of a conductive material. The second connecting conductor 11 is made of, for example, Cu.

[0039] FIG. 4 is a diagram showing an enlarged part of the first conductor 6. As shown in FIG. 4, the first conductor 6 has a first surface 6A and a second surface 6B. The first surface 6A and the second surface 6B face each other in the second direction D2. The first surface 6A is a surface facing the main surface 2c (a surface facing the main surface 2c side). The first surface 6A is closer to the main surface 2c than the second surface 6B in the second direction D2. The second surface 6B is a surface facing the main surface 2d (a surface facing the main surface 2d side). The second surface 6B is closer to the main surface 2d than the first surface 6A in the second direction D2.

[0040] An identification portion 13 is provided on the first surface 6A of the first conductor 6. In the present embodiment, the identification portion 13 is disposed on the entire surface of the first surface 6A. The thickness (dimension in the second direction D2) of the identification portion 13 is smaller than the thickness of the first conductor 6. The identification portion 13 is formed of a material different from that of the first conductor 6. The identification portion 13 is formed of a material having a higher light reflectance than the material forming the first conductor 6. That is, in the present embodiment, the identification portion 13 is formed of a material having a higher light reflectance than Cu. The identification portion 13 is formed of, for example, Cr, Ti, or NiCr.

[0041] As shown in FIG. 2, the distance L1 between the first conductor 6 and the main surface 2c of the base body 2 is shorter than the distance L2 between the second conductor 7 and the main surface 2d of the base body 2 (L1 < L2). The distance L1 is set to a distance at which visible light incident from the main surface 2c of the base body 2 can reach the identification portion 13. The distance L1 is set to, for example, 1 μm to 30 μm.

[0042] As described above, in the coil component 1 according to this embodiment, the element body 2 is formed of a material having optical transparency. In this configuration, the first conductors 6 are provided with the identification parts 13 formed of a material different from the first conductors 6 and the second conductors 7 on the first surface 6A facing the main surface 2c. As a result, in the coil component 1, when the element body 2 is viewed, the first conductors 6 and the second conductors 7 can be distinguished from the identification parts 13, and therefore the identification parts 13 can be recognized. Therefore, in the coil component 1, the first conductors 6 can be recognized by the identification parts 13, and therefore the orientation (position) of the first conductors 6 can be recognized. Therefore, in the coil component 1, the direction (orientation) of the coil component 1 can be identified.

[0043] In the coil component 1 according to this embodiment, the material forming the identification portion 13 has a higher light reflectance than the material forming the first conductors 6 and the second conductors 7. Specifically, the first conductors 6 and the second conductors 7 are formed of a material mainly composed of Cu, and the identification portion 13 is formed of a material mainly composed of Cr, Ti, or NiCr. In this configuration, the light reflectance of the first conductors 6 and the second conductors 7 differs from that of the identification portion 13, making it possible to more easily recognize the identification portion 13.

[0044] In the coil component 1 according to this embodiment, the first terminal electrode 3 and the second terminal electrode 4 are embedded in the element body 2. The surfaces of the first terminal electrode 3 and the second terminal electrode 4 do not protrude from the main surface 2d of the element body 2. In this manner, in a configuration in which the first terminal electrode 3 and the second terminal electrode 4 are embedded in the element body 2, it is difficult to recognize the first terminal electrode 3 and the second terminal electrode 4, and therefore it is difficult to recognize the orientation of the coil component 1 at a glance. For this reason, the above configuration is particularly effective in a configuration in which the first terminal electrode 3 and the second terminal electrode 4 are embedded in the element body 2.

[0045] In the coil component 1 according to this embodiment, the distance L1 between the first conductor 6 and the principal surface 2c is shorter than the distance L2 between the second conductor 7 and the principal surface 2d. As a result, in the coil component 1, when the element body 2 is viewed, the identification portion 13 provided on the first conductor 6 is easier to visually recognize than the second conductor 7, and therefore the identification portion 13 (first conductor 6) can be recognized. Therefore, in the coil component 1, the orientation (position) of the first conductor 6 can be recognized. Therefore, in the coil component 1, the direction (orientation) of the coil component 1 can be identified.

[0046] When manufacturing the coil component 1, the laminate is cut into individual pieces. At this time, the internal conductor may be exposed in the individual laminate due to a deviation in the cutting position of the laminate. Therefore, after manufacturing the coil component 1, it is inspected whether the internal conductor arranged in the element body 2 is exposed from the element body 2. As an inspection method, the appearance of the coil component 1 is confirmed and the exposure of the first conductor 6 from the element body 2 is inspected. In the coil component 1 according to this embodiment, an identification portion 13 is provided on the first surface 6A of the first conductor 6. Since the first conductor 6 and the identification portion 13 can be distinguished, when the laminate (element body 2) is scraped off due to a deviation in the cutting position, it is possible to confirm whether the first conductor 6 is exposed by checking whether the identification portion 13 or the first conductor 6 is exposed.

[0047] [Second embodiment] Next, an electronic component according to a second embodiment will be described. Fig. 5 is a perspective view of the electronic component according to the second embodiment. Fig. 6 is a side view of the electronic component shown in Fig. 5. Fig. 7 is a main surface view of the electronic component shown in Fig. 5. As shown in Figs. 5 to 7, a coil component (electronic component) 1A includes an element body 2, a first terminal electrode 3 and a second terminal electrode 4, a first conductor 15, a second conductor 16, a first connecting conductor 17 and a second connecting conductor 18.

[0048] The first conductors 15 and the second conductors 16 are made of a conductive material. In this embodiment, the first conductors 15 and the second conductors 16 are made of a material mainly composed of Cu. The first conductors 15 and the second conductors 16 are arranged apart from the end faces 2a and 2b, the main faces 2c and 2d, and the side faces 2e and 2f.

[0049] The first conductor 15 is disposed at a position closer to the main surface 2c of the element body 2. The first conductor 15 extends along a first direction D1. In this embodiment, the first conductor 15 has a prismatic shape. The cross-sectional shape of the first conductor 15 is rectangular. The first conductor 15 is not electrically connected to the first terminal electrode 3 and the second terminal electrode 4. In other words, the first conductor 15 is a so-called dummy electrode.

[0050] The second conductor 16 is disposed at a position closer to the main surface 2d (mounting surface) of the element body 2. The second conductor 16 extends in the first direction D1. In this embodiment, the second conductor 7 has a prismatic shape. The cross-sectional shape of the second conductor 7 is rectangular. In this embodiment, the second conductor 16 has the same shape and dimensions as the first conductor 15. The second conductor 16 is disposed at a position facing the first conductor 15 in the second direction D2. The second conductor 16 is disposed at a position overlapping the first conductor 15 when viewed from the second direction D2.

[0051] The first connecting conductor 17 connects the first terminal electrode 3 and the second conductor 16. The first connecting conductor 17 is connected to one end of the second conductor 16. The first connecting conductor 17 is disposed at a position closer to the end face 2a. The first connecting conductor 17 is made of a conductive material. The first connecting conductor 17 is made of Cu, for example.

[0052] The second connecting conductor 18 connects the second terminal electrode 4 and the second conductor 16. The second connecting conductor 18 is connected to the other end of the second conductor 16. The second connecting conductor 18 is disposed at a position closer to the end face 2b. The second connecting conductor 18 is made of a conductive material. The second connecting conductor 18 is made of Cu, for example.

[0053] FIG. 8 is a diagram showing an enlarged part of the first conductor 15. As shown in FIG. 8, the first conductor 15 has a first surface 15A and a second surface 15B. The first surface 15A and the second surface 15B face each other in the second direction D2. The first surface 15A is a surface facing the main surface 2c (a surface facing the main surface 2c side). The first surface 15A is closer to the main surface 2c than the second surface 15B in the second direction D2. The second surface 15B is a surface facing the main surface 2d (a surface facing the main surface 2d side). The second surface 15B is closer to the main surface 2d than the first surface 15A in the second direction D2.

[0054] An identification portion 19 is provided on the first surface 15A of the first conductor 15. In the present embodiment, the identification portion 19 is disposed on the entire surface of the first surface 15A. The thickness of the identification portion 19 (dimension in the second direction D2) is smaller than the thickness of the first conductor 15. The identification portion 19 is formed of a material different from that of the first conductor 15. The identification portion 19 is formed of a material having a higher light reflectance than the material forming the first conductor 15. That is, in the present embodiment, the identification portion 19 is formed of a material having a higher light reflectance than Cu. The identification portion 19 is formed of, for example, Cr, Ti, or NiCr.

[0055] As shown in FIG. 6, the distance L11 between the first conductor 15 and the main surface 2c of the base body 2 is shorter than the distance L12 between the second conductor 16 and the main surface 2d of the base body 2 (L11 < L12). The distance L11 is set to a distance at which visible light incident from the main surface 2c of the base body 2 can reach the identification portion 19. The distance L11 is set to, for example, 1 μm to 30 μm.

[0056] As described above, in the coil component 1A according to this embodiment, the element body 2 is formed of a material having optical transparency. In this configuration, the first conductors 15 are provided with the identification parts 19 formed of a material different from the first conductors 15 and the second conductors 16 on the first surface 15A facing the main surface 2c. As a result, in the coil component 1A, when the element body 2 is viewed, the first conductors 15 and the second conductors 16 can be distinguished from the identification parts 19, and therefore the identification parts 19 can be recognized. Therefore, in the coil component 1A, the first conductors 15 can be recognized by the identification parts 19, and therefore the orientation (position) of the first conductors 15 can be recognized. Therefore, in the coil component 1A, the direction (orientation) of the coil component 1A can be identified.

[0057] In the coil component 1A according to this embodiment, the material forming the identification portion 19 has a higher light reflectance than the material forming the first conductors 15 and the second conductors 16. Specifically, the first conductors 15 and the second conductors 16 are formed of a material mainly composed of Cu, and the identification portion 19 is formed of a material mainly composed of Cr, Ti, or NiCr. In this configuration, the light reflectance of the first conductors 15 and the second conductors 16 differs from that of the identification portion 19, making it possible to more easily recognize the identification portion 19.

[0058] In the coil component 1A according to this embodiment, the distance L11 between the first conductor 15 and the principal surface 2c is shorter than the distance L12 between the second conductor 16 and the principal surface 2d. As a result, in the coil component 1A, when the element body 2 is viewed, the identification portion 19 provided on the first conductor 15 is easier to visually recognize than the second conductor 16, and therefore the identification portion 19 (first conductor 15) can be recognized. Therefore, in the coil component 1A, the orientation (position) of the first conductor 15 can be recognized. Therefore, in the coil component 1A, the direction (orientation) of the coil component 1A can be identified.

[0059] In the coil component 1A according to this embodiment, the first conductor 15 is not electrically connected to the first terminal electrode 3 and the second terminal electrode 4, and the second conductor 16 is electrically connected to the first terminal electrode 3 and the second terminal electrode 4. The first conductor 15 is a so-called dummy conductor. In this configuration, even if an inductor is formed only by the second conductor 16, the first conductor 15, which is a dummy conductor, can be recognized. Therefore, in the coil component 1A, the orientation (position) of the first conductor 15 can be recognized. Therefore, in the coil component 1A, the direction (orientation) of the coil component 1A can be identified.

[0060] Although the embodiment of the present invention has been described above, the present invention is not necessarily limited to the above-described embodiment, and various modifications are possible without departing from the gist of the present invention.

[0061] In the above embodiment, the identification parts 13, 19 are provided on the first surfaces 6A, 15A of the first conductors 6, 15 as an example. However, the identification parts 13, 19 may not be provided. In this case, it is sufficient that the distances L1, L11 between the first conductors 6, 15 and the main surface 2c of the element body 2 are shorter than the distances L2, L12 between the second conductors 7, 16 and the main surface 2d of the element body 2. In this configuration, when the element body 2 is viewed, the identification parts 13, 19 provided on the first conductors 6, 15 are easier to visually recognize than the second conductors 7, 16, so that the identification parts 13, 19 (first conductors 6, 15) can be recognized. Therefore, the orientation (position) of the first conductors 6, 15 can be recognized. Therefore, the direction (orientation) of the coil component can be identified.

[0062] In the above embodiment, an example has been described in which the identification portions 13, 19 are provided on the entire surfaces of the first surfaces 6A, 15A of the first conductors 6, 15. However, the identification portions 13, 19 may be provided on only a portion of the first surfaces 6A, 15A of the first conductors 6, 15.

[0063] In the above second embodiment, a configuration in which the first conductors 15 are not electrically connected to the first terminal electrode 3 and the second terminal electrode 4 has been described as an example. That is, a configuration in which the first conductors 15 are dummy conductors has been described as an example. However, the first conductors 15 may be electrically connected to the first terminal electrode 3 and the second terminal electrode 4.

[0064] In the above second embodiment, an example has been described in which there is one each of the first conductors 15 and the second conductors 16. However, there may be a plurality of each of the first conductors 15 and the second conductors 16.

[0065] In the above embodiment, a configuration in which the first terminal electrode 3 and the second terminal electrode 4 are embedded in the element body 2 has been described as an example. However, the first terminal electrode 3 and the second terminal electrode 4 may be disposed on the main surface 2d of the element body 2.

[0066] In the above embodiment, the numbers of the first conductors, the second conductors, and the pillars are not limited to the values ​​described above, and the shapes of the first conductors, the second conductors, and the pillars are not limited to the shapes described above. [Explanation of symbols]

[0067] 1, 1A... coil component (electronic component), 2... element body, 2c... main surface, 2d... main surface (mounting surface), 3... first terminal electrode, 4... second terminal electrode, 6, 15... first conductor, 7, 16... second conductor, 8... pillar (connecting conductor), 13... identification portion (first conductor 6), 19... identification portion (first conductor 15), L1, L11... distance, L2, L12... distance.

Claims

1. an element body formed by laminating a plurality of insulating layers and including a mounting surface and a main surface opposite to the mounting surface; a pair of terminal electrodes disposed on the mounting surface of the element body; a first conductor disposed in the element body near the main surface and electrically connected to the pair of terminal electrodes; a second conductor disposed in the body at a position closer to the mounting surface and electrically connected to the pair of terminal electrodes, The element body is formed of a material having optical transparency, An electronic component, wherein the first conductor has an identification portion formed of a material different from that of the first conductor on a surface facing the main surface.

2. The electronic component according to claim 1 , wherein a material forming the identifier has a higher light reflectance than a material forming the first conductor.

3. The first conductors are formed of a material containing Cu as a main component, The electronic component according to claim 1 , wherein the identification portion is made of a material containing Cr, Ti or NiCr as a main component.

4. 3 . The electronic component according to claim 1 , further comprising a connection conductor disposed within the base body, extending in a direction in which the mounting surface and the main surface oppose each other, and connecting the first conductor and the second conductor.

5. The pair of terminal electrodes are embedded in the element body, The electronic component according to claim 1 , wherein surfaces of the pair of terminal electrodes do not protrude from the mounting surface.

6. an element body formed by laminating a plurality of insulating layers and including a mounting surface and a main surface opposite to the mounting surface; a pair of terminal electrodes disposed on the mounting surface of the element body; A first conductor disposed in the element body near the main surface; a second conductor disposed in the body at a position closer to the mounting surface, The element body is formed of a material having optical transparency, an electronic component, wherein a distance between the first conductors and the main surface is shorter than a distance between the second conductors and the mounting surface.

7. the first conductor is not electrically connected to the pair of terminal electrodes, The electronic component according to claim 6 , wherein the second conductor is electrically connected to a pair of the terminal electrodes.

8. The electronic component according to claim 6 , wherein the first conductors and the second conductors are made of a material containing Cu as a main component.

9. The electronic component according to claim 6 , further comprising a connection conductor disposed within the base body, extending in a direction in which the mounting surface and the main surface oppose each other, and connecting the first conductor and the second conductor.

10. The pair of terminal electrodes are embedded in the element body, 8. The electronic component according to claim 6, wherein surfaces of the pair of terminal electrodes do not protrude from the mounting surface.

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