Electronic Components
The electronic component design addresses misalignment-induced changes in capacitance by using conductors with recesses and protrusions to maintain consistent electrical properties.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2026-03-10
AI Technical Summary
Existing electronic components face issues with changes in characteristics due to misalignment during stacking, which affects capacitance and other electrical properties.
The electronic component design includes conductors with specific configurations, such as recesses and protrusions, that maintain a consistent facing area despite misalignment, ensuring stable capacitance and electrical characteristics.
The design effectively suppresses changes in capacitance and other characteristics by maintaining a constant facing area between conductors, even with misalignment during stacking.
Smart Images
Figure 2026040984000001_ABST
Abstract
Description
[Technical Field]
[0001] The present disclosure relates to electronic components. [Background technology]
[0002] Patent Document 1 discloses a multilayer ceramic electronic component having a laminate formed by stacking multiple ceramic layers and internal conductors, and a pair of terminal electrodes formed at both ends of the laminate and alternately connected to the internal electrodes, wherein the internal electrodes are composed of a large-area portion, a small-area portion, and a narrow portion located between the large-area portion and the small-area portion and connecting the large-area portion and the small-area portion, the large-area portion being located on the connection side of the internal electrode with the terminal electrode, and the small-area portion being formed at the tip of the internal electrode, and the large-area portion overlapping the small-area portion facing it across the ceramic layer in a plan view. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-190774 Summary of the Invention [Problem to be solved by the invention]
[0004] In the electronic component, the large-area section and the small-area section are stacked on top of each other, so that even if the internal electrodes are misaligned, the small-area section moves within the large-area section. This prevents changes in capacitance. Thus, there is a demand for a configuration that can prevent changes in the characteristics of the electronic component even if the stacking is misaligned.
[0005] An object of one aspect of the present disclosure is to provide an electronic component that can suppress changes in characteristics even when stacking misalignment occurs. [Means for solving the problem]
[0006] (1) An electronic component according to one aspect of the present disclosure comprises: an element body having a pair of end faces facing each other in a first direction, a pair of main surfaces facing each other in a second direction, and a pair of side faces facing each other in a third direction; a plurality of terminal electrodes arranged on the side faces; a first conductor arranged within the element body, the first conductor having a main body and a connection portion electrically connecting the main body to one of the plurality of terminal electrodes; and a second conductor arranged within the element body at a position facing the first conductor in the second direction, wherein the second conductor has a recess that opens toward the side face on which the one terminal electrode is arranged when viewed from the second direction, and the connection portion has a first portion extending in the first direction and one end connected to the main body, and a second portion extending in the third direction and one end connected to the other end of the first portion, wherein when viewed from the second direction, a part of the first portion faces the second conductor, and the second portion is located in the recess.
[0007] In an electronic component according to one aspect of the present disclosure, when viewed from the second direction, a part of the first portion faces the second conductor, and the second portion is located in the recess. As a result, even if the first conductor and / or the second conductor is displaced in the third direction, the facing area between the first conductor and the second conductor does not change because the second portion is located in the recess. Therefore, the capacitance formed by the first conductor and the second conductor does not change in the electronic component. Therefore, even if the stacking is displaced, the electronic component can suppress changes in its characteristics.
[0008] (2) In the electronic component of (1) above, the second conductor may have a portion located outside the main body of the first conductor when viewed from the second direction. In this configuration, the entire first conductor overlaps the second conductor when viewed from the second direction, and even if the position of the first conductor is shifted, the opposing area between the first conductor and the second conductor does not change. Therefore, in the electronic component, the capacitance formed by the first conductor and the second conductor does not change. Therefore, in the electronic component, even if stacking shift occurs, changes in characteristics can be further suppressed.
[0009] (3) In the electronic component of (1) or (2), the first conductor may extend in the first direction and have a protruding portion connected to an end of the main body opposite in the first direction from the end to which the first portion is connected, and the protruding portion may have a portion located outside the second conductor when viewed from the second direction. In this configuration, even if the first conductor and / or the second conductor are misaligned in the first direction, the facing area between the first conductor and the second conductor does not change because of the protruding portion. Therefore, in the electronic component, the capacitance formed by the first conductor and the second conductor does not change. Therefore, in the electronic component, changes in characteristics can be more effectively suppressed even if stacking misalignment occurs.
[0010] (4) In the electronic component of (3) above, the length of the first portion in the first direction may be longer than the length of the protruding portion in the first direction. With this configuration, even if the first conductor and / or the second conductor is misaligned in the first direction, the opposing area between the first portion of the connection portion and the second conductor does not change. Therefore, in the electronic component, the capacitance formed by the first conductor and the second conductor does not change. Therefore, in the electronic component, even if stacking misalignment occurs, changes in the characteristics can be suppressed.
[0011] (5) In any one of the electronic components (1) to (4) above, when viewed from the second direction, the distance in the third direction between the first portion located in the recess and the second conductor may be longer than the distance in the first direction between the second portion and the second conductor. With this configuration, even if the first conductor and / or the second conductor is misaligned in the third direction, there is no change in the opposing area between the first portion of the connection portion and the second conductor. Therefore, in the electronic component, there is no change in the capacitance formed by the first conductor and the second conductor. Therefore, in the electronic component, changes in characteristics can be suppressed even if stacking misalignment occurs.
[0012] (6) In any one of the electronic components (1) to (5) above, the first portion and the second portion may be disposed at different positions in the second direction within the element body, and the first portion and the second portion may be electrically connected by a connecting conductor. In this configuration, the first portion and the second portion are disposed at different positions (layers). This allows the electronic component to distribute stress applied to the connection portion. Therefore, the electronic component can prevent cracks from occurring in the element body in the area surrounding the connection portion.
[0013] (7) In any one of the electronic components described above in (1) to (6), the second conductor may be a ground conductor electrically connected to ground, and the first conductor may be a capacitor conductor that forms a capacitor together with the ground conductor. In the electronic component, there is no change in the capacitance formed by the capacitor conductor and the ground conductor. Therefore, even if lamination misalignment occurs in the electronic component, it is possible to suppress changes in the characteristics.
[0014] (8) In any one of the electronic components (1) to (7) above, the electronic component may include two first conductors, one of which is electrically connected to a terminal electrode arranged on one side surface, and the other of which is electrically connected to another terminal electrode arranged on the other side surface at a position opposite the one terminal electrode in a third direction, and the second conductor may have recesses at positions opposite the one terminal electrode and the other terminal electrode when viewed from the second direction. [Effects of the Invention]
[0015] According to one aspect of the present disclosure, even if lamination misalignment occurs, changes in characteristics can be suppressed. [Brief explanation of the drawings]
[0016] [Figure 1] FIG. 1 is a perspective view of an electronic component according to one embodiment. [Figure 2] FIG. 2 is a side view of the electronic component shown in FIG. [Figure 3]FIG. 3 is a view of the electronic component shown in FIG. 1 as seen from the end face side. [Figure 4] FIG. 4 is an exploded perspective view of the electronic component. [Figure 5] FIG. 5 is a plan view showing the capacitor conductors and the ground conductors. [Figure 6] FIG. 6 is a perspective view of an electronic component according to another embodiment. [Figure 7] FIG. 7 is a side view of the electronic component shown in FIG. [Figure 8] FIG. 8 is a view of the electronic component shown in FIG. 6 as seen from the end face side. DETAILED DESCRIPTION OF THE INVENTION
[0017] 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 redundant description will be omitted.
[0018] Fig. 1 is a perspective view of an electronic component according to one embodiment. Fig. 2 is a side view of the electronic component shown in Fig. 1. Fig. 3 is an end view of the electronic component shown in Fig. 1. As shown in Figs. 1 to 3, the electronic component 1 includes an element body 2, a first terminal electrode 3, a second terminal electrode 4, a third terminal electrode 5, a fourth terminal electrode 6, a fifth terminal electrode 7, and a sixth terminal electrode 8, which are respectively arranged on the element body 2, and a resonator 9.
[0019] 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, as its outer surfaces, a pair of end faces 2a, 2b facing each other, a pair of main faces 2c, 2d facing each other, and a pair of side faces 2e, 2f facing each other. The facing direction in which the pair of end faces 2a, 2b face each other is a first direction D1. The facing direction in which the pair of main faces 2c, 2d face each other is a second direction D2. The facing direction in which the pair of side faces 2e, 2f face each other is a third direction D3.
[0020] In this embodiment, the first direction D1 is the longitudinal direction of the element body 2. The second direction D2 is the height direction of the element body 2 and is perpendicular to the second direction D2. The third direction D3 is the width direction of the element body 2 and is perpendicular to the second direction D2 and the first direction D1.
[0021] The pair of end faces 2a, 2b extend in the second direction D2 to connect the pair of principal faces 2c, 2d together. The pair of end faces 2a, 2b also extend in the third direction D3 (the direction of the short sides of the pair of principal faces 2c, 2d). The pair of side faces 2e, 2f extend in the second direction D2 to connect the pair of principal faces 2c, 2d together. The pair of side faces 2e, 2f also extend in the first direction D1 (the direction of the long sides of the pair of end faces 2a, 2b). The principal face 2d can be defined as a mounting surface that faces another electronic device (for example, a circuit board or electronic component) when the electronic component 1 is mounted on the other electronic device.
[0022] The element body 2 is constructed by laminating multiple dielectric layers 10 (see FIG. 4). Each dielectric layer is laminated in the second direction D2. That is, the second direction D2 is the lamination direction. The element body 2 has multiple laminated dielectric layers. Each dielectric layer 10 is constructed, for example, from a sintered ceramic green sheet containing a dielectric material (dielectric ceramic such as BaTiO3-based, Ba(Ti,Zr)O3-based, or (Ba,Ca)TiO3-based). In the actual element body 2, the multiple dielectric layers 10 are integrated to the extent that the boundaries between the layers are not visible.
[0023] The first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 are arranged on the side surface 2e side of the element body 2. The first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 are formed so as to cover part of the side surface 2e along the second direction D2 of the element body 2, and are also formed on part of the main surface 2c and part of the main surface 2d. The first terminal electrode 3 is located on the end surface 2a side, and the third terminal electrode 5 is located on the end surface 2b side. The second terminal electrode 4 is located between the first terminal electrode 3 and the third terminal electrode 5.
[0024] The fourth terminal electrode 6, the fifth terminal electrode 7, and the sixth terminal electrode 8 are arranged on the side surface 2f of the element body 2. The fourth terminal electrode 6, the fifth terminal electrode 7, and the sixth terminal electrode 8 are formed so as to cover part of the side surface 2f along the second direction D2 of the element body 2, and are also formed on part of the main surface 2c and part of the main surface 2d. The fourth terminal electrode 6 is located on the end surface 2a side, and the sixth terminal electrode 8 is located on the end surface 2b side. The fifth terminal electrode 7 is located between the fourth terminal electrode 6 and the sixth terminal electrode 8.
[0025] The first terminal electrode 3, the second terminal electrode 4, the third terminal electrode 5, the fourth terminal electrode 6, the fifth terminal electrode 7, and the sixth terminal electrode 8 contain a conductive material (for example, Ag or Pd). The first terminal electrode 3, the second terminal electrode 4, the third terminal electrode 5, the fourth terminal electrode 6, the fifth terminal electrode 7, and the sixth terminal electrode 8 are configured as a sintered body of a conductive paste containing a conductive material (for example, Ag powder or Pd powder). A plating layer may be formed on the surface of the first terminal electrode 3, the second terminal electrode 4, the third terminal electrode 5, the fourth terminal electrode 6, the fifth terminal electrode 7, and the sixth terminal electrode 8. The plating layer is formed, for example, by electroplating. The plating layer has a layer structure consisting of a Cu plating layer, a Ni plating layer, and a Sn plating layer, or a layer structure consisting of a Ni plating layer and a Sn plating layer.
[0026] The first terminal electrode 3 constitutes a ground terminal (a terminal connected to ground). The second terminal electrode 4 constitutes an input terminal (a terminal to which a signal is input). The third terminal electrode 5 constitutes a ground terminal. The fourth terminal electrode 6 constitutes a ground terminal. The fifth terminal electrode 7 constitutes an output terminal (a terminal from which a signal is output). The sixth terminal electrode 8 constitutes a ground terminal.
[0027] Fig. 4 is an exploded perspective view of the electronic component 1. As shown in Fig. 4, the resonator 9 includes an inductor conductor 11, an inductor conductor 12, an inductor conductor 13, an inductor conductor 14, an inductor conductor 15, an inductor conductor 16, an inductor conductor 17, an inductor conductor 18, an inductor conductor 19, an inductor conductor 20, an inductor conductor 21, an inductor conductor 22, a capacitor conductor 23, a capacitor conductor 24, a capacitor conductor 25, a connecting conductor 26, a connecting conductor 27, a connecting conductor 28, a connecting conductor 29, a capacitor conductor 30, a capacitor conductor 31, a capacitor conductor (first conductor) 32, a capacitor conductor (first conductor) 33, a ground conductor (second conductor) 34, a connecting conductor 35, and a plurality of via conductors B. The via conductors B electrically connect the conductors arranged at different positions in the second direction D2.
[0028] Each conductor may include a conductive material (e.g., Ag or Pd), and may be configured as a sintered body of a conductive paste containing a conductive material (e.g., Ag powder or Pd powder).
[0029] A portion of the capacitor conductor 32 is exposed at the side surface 2f and is connected to the fifth terminal electrode 7. A portion of the capacitor conductor 33 is exposed at the side surface 2e and is connected to the second terminal electrode 4. The connecting conductor 35 is exposed at the side surfaces 2e and 2f and is connected to the first terminal electrode 3, the third terminal electrode 5, the fourth terminal electrode 6, and the sixth terminal electrode 8.
[0030] Fig. 5 is a plan view showing the capacitor conductors 32 and 33 and the ground conductor 34. As shown in Fig. 5, the capacitor conductor 32 and the ground conductor 34 are arranged opposite each other in the second direction D2. The capacitor conductor 33 and the ground conductor 34 are arranged opposite each other in the second direction D2.
[0031] The capacitor conductor 32 includes a main body portion 32A, a connecting portion 32B, and a protruding portion 32C. The main body portion 32A, the connecting portion 32B, and the protruding portion 32C may be integrally formed. The main body portion 32A has a substantially rectangular shape.
[0032] The connecting portion 32B has a substantially L-shape. The connecting portion 32B has a first portion 32Ba and a second portion 32Bb. The first portion 32Ba and the second portion 32Bb may be integrally formed. The first portion 32Ba extends linearly along the first direction D1. The first portion 32Ba has a rectangular (strip) shape when viewed from the second direction D2. The first portion 32Ba has a predetermined width W11. The width W11 is, for example, 100 μm. The base end (the end on the end face 2a side, one end) of the first portion 32Ba is connected to the end of the main body portion 32A on the end face 2b side at a position closer to the side face 2f. The first portion 32Ba has a length L11 in the first direction D1.
[0033] The second portion 32Bb extends linearly along the third direction D3. The second portion 32Bb has a rectangular (strip) shape when viewed from the second direction D2. The second portion 32Bb has a predetermined width W12. In this embodiment, the width W11 of the first portion 32Ba and the width W12 of the second portion 32Bb are equal (W11 = W12). The base end (the end on the side of the side surface 2e, one end) of the second portion 32Bb is connected to the tip (the other end) of the first portion 32Ba. The tip (the other end) of the second portion 32Bb is exposed on the side surface 2f and is connected to the fifth terminal electrode 7.
[0034] The protrusion 32C has a substantially rectangular shape. The protrusion 32C extends linearly along the first direction D1. The protrusion 32C has a predetermined width W13. In this embodiment, the width W11 of the first portion 32Ba and the width W12 of the second portion 32Bb are equal to the width W13 of the protrusion 32C (W11, W12 = W13). The base end (the end on the end face 2b side) of the protrusion 32C is connected to the end of the main body 32A on the end face 2a side, closer to the side face 2f. That is, the protrusion 32C is connected to the end (the end on the end face 2a side) of the main body 32A opposite in the first direction D1 to the end (the end on the end face 2b side) to which the first portion 32Ba of the connecting portion 32B is connected. In this embodiment, the protrusion 32C is arranged in the same straight line as the first portion 32Ba of the connecting portion 32B. The protrusion 32C has a length L12 in the first direction D1. In this embodiment, the length L12 is shorter than the length L11 (L12 <L11)。
[0035] The capacitor conductor 33 includes a main body 33A, a connecting portion 33B, and a protruding portion 33C. The main body 33A, the connecting portion 33B, and the protruding portion 33C may be integrally formed. The main body 33A has a substantially rectangular shape.
[0036] The connecting portion 33B has a substantially L-shape. The connecting portion 33B has a first portion 33Ba and a second portion 33Bb. The first portion 33Ba and the second portion 33Bb may be integrally formed. The first portion 33Ba extends linearly along the first direction D1. The first portion 33Ba has a rectangular (strip) shape when viewed from the second direction D2. The first portion 33Ba has a predetermined width W21. The width W21 is, for example, 100 μm. The base end (the end on the end face 2b side) of the first portion 33Ba is connected to the end of the main body portion 33A on the end face 2a side at a position closer to the side face 2e. The first portion 33Ba has a length L21 in the first direction D1.
[0037] The second portion 33Bb extends linearly along the third direction D3. The second portion 33Bb has a rectangular (strip) shape when viewed from the second direction D2. The second portion 33Bb has a predetermined width W22. In this embodiment, the width W21 of the first portion 33Ba and the width W22 of the second portion 33Bb are equal (W21 = W22). The base end (the end on the side of the side surface 2f) of the second portion 33Bb is connected to the tip of the first portion 33Ba. The tip of the second portion 33Bb is exposed at the side surface 2e and connected to the second terminal electrode 4.
[0038] The protruding portion 33C has a substantially rectangular shape. The protruding portion 33C extends linearly along the first direction D1. The protruding portion 33C has a predetermined width W23. In this embodiment, the width W21 of the first portion 33Ba and the width W22 of the second portion 33Bb are equal to the width W23 of the protruding portion 33C (W21, W22 = W23). The base end (the end on the end face 2a side) of the protruding portion 33C is connected to the end of the main body portion 33A on the end face 2b side at a position closer to the side face 2e. That is, the protruding portion 33C is connected to the end (the end on the end face 2b side) of the main body portion 33A opposite in the first direction D1 from the end (the end on the end face 2a side) to which the first portion 33Ba of the connecting portion 33B is connected. In this embodiment, the protruding portion 33C is arranged in the same straight line as the first portion 33Ba of the connecting portion 33B. The protruding portion 33C has a length L22 in the first direction D1. In this embodiment, the length L22 is shorter than the length L21 (L22 <L21)。
[0039] The ground conductor 34 is electrically connected to the connection conductor 35 through a plurality of via conductors B. As a result, the ground conductor 34 is electrically connected to the first terminal electrode 3, the third terminal electrode 5, the fourth terminal electrode 6, and the sixth terminal electrode 8, which are ground terminals. The ground conductor 34 has a substantially rectangular shape when viewed from the second direction D2. The ground conductor 34 has a first recess 34A and a second recess 34B. The ground conductor 34 has an axisymmetric shape with respect to a straight line extending in the third direction D3.
[0040] The first recess 34A is disposed at a position facing the fifth terminal electrode 7 when viewed from the second direction D2. The first recess 34A is open toward the side surface 2f on which the fifth terminal electrode 7 is disposed. In the first recess 34A, the corners 34Aa and 34Ab and the corner 34Ac are curved.
[0041] The second recess 34B is disposed at a position facing the second terminal electrode 4 when viewed from the second direction D2. The second recess 34B opens toward the side surface 2e on which the second terminal electrode 4 is disposed. The second recess 34B is disposed at a position facing the first recess 34A in the third direction D3. In the second recess 34B, the corners 34Ba and 34Bb and the corner 34Bc are curved.
[0042] The connection portion 32B of the capacitor conductor 32 is located in the first recess 34A of the ground conductor 34 when viewed from the second direction D2. Specifically, a part of the first portion 32Ba and the second portion 32Bb of the connection portion 32B are located in the first recess 34A. A part (base end side) of the first portion 32Ba overlaps with the ground conductor 34 when viewed from the second direction D2. A part (tip end side) of the first portion 32Ba and the second portion 32Bb do not overlap with the ground conductor 34 when viewed from the second direction D2.
[0043] The connecting portion 32B (first portion 32Ba) and the ground conductor 34 are spaced apart by a distance L13 in the third direction D3. The distance L13 is, for example, 65 μm. The connecting portion 32B (second portion 32Bb) and the ground conductor 34 are spaced apart by a distance L14 in the first direction D1. The distance L14 is, for example, 55 μm. The protruding portion 32C protrudes a distance L15 from the end of the ground conductor 34 on the end face 2a side. The distance L15 is, for example, 30 μm.
[0044] The ground conductor 34 has a portion located outside the main body 32A of the capacitor conductor 32 when viewed from the second direction D2. The main body 32A is disposed at a distance L16 from the end of the ground conductor 34 on the side surface 2f side. The distance L16 is, for example, 30 μm. The main body 32A is disposed at a distance L17 from the end of the ground conductor 34 on the end surface 2a side. The distance L17 is, for example, 30 μm.
[0045] The connecting portion 33B (first portion 33Ba) and the ground conductor 34 are spaced apart by a distance L23 in the third direction D3. The distance L23 is, for example, 65 μm. The connecting portion 33B (second portion 33Bb) and the ground conductor 34 are spaced apart by a distance L24 in the first direction D1. The distance L24 is, for example, 55 μm. The protruding portion 33C protrudes a distance L25 from the end of the ground conductor 34 on the end face 2b side. The distance L25 is, for example, 30 μm.
[0046] The ground conductor 34 has a portion located outside the main body 33A of the capacitor conductor 33 when viewed from the second direction D2. The main body 33A is disposed at a distance L26 from the end of the ground conductor 34 on the side surface 2e side. The distance L26 is, for example, 30 μm. The main body 33A is disposed at a distance L27 from the end of the ground conductor 34 on the end surface 2b side. The distance L27 is, for example, 30 μm.
[0047] As described above, in the electronic component 1 according to this embodiment, when viewed from the second direction D2, a part of the first portion 32Ba (33Ba) of the connection portion 32B (33B) of the capacitor conductor 32 (33) faces the ground conductor 34, and the second portion 32Bb (33Bb) is located in the first recess 34A (second recess 34B). Therefore, even if the capacitor conductor 32 (33) and / or the ground conductor 34 is misaligned in the third direction D3, the facing area between the capacitor conductor 32 (33) and the ground conductor 34 does not change because the second portion 32Bb (33Bb) is located in the first recess 34A (second recess 34B). Therefore, in the electronic component 1, the capacitance formed by the capacitor conductor 32 (33) and the ground conductor 34 does not change. Therefore, in the electronic component 1, even if a stacking misalignment occurs, changes in the characteristics can be suppressed.
[0048] In the electronic component 1 according to this embodiment, the ground conductor 34 has a portion located outside the main body 32A (33A) of the capacitor conductor 32 (33) when viewed from the second direction D2. In this configuration, the entire capacitor conductor 32 (33) overlaps the ground conductor 34 when viewed from the second direction D2. Even if the position of the capacitor conductor 32 (33) is misaligned, the opposing area between the capacitor conductor 32 (33) and the ground conductor 34 does not change. Therefore, in the electronic component 1, the capacitance formed by the capacitor conductor 32 (33) and the ground conductor 34 does not change. Therefore, in the electronic component 1, changes in the characteristics can be suppressed even if a stacking misalignment occurs.
[0049] In the electronic component 1 according to this embodiment, the capacitor conductor 32 (33) extends in the first direction D1 and has a protrusion 32C (33C) connected to one end of the main body 32A (33A) opposite in the first direction D1 to the end to which the first portion 32Ba (33Ba) is connected. The protrusion 32C (33C) has a portion located outside the ground conductor 34 as viewed in the second direction D2. In this configuration, even if the capacitor conductor 32 (33) and / or the ground conductor 34 are misaligned in the first direction D1, the opposing area between the capacitor conductor 32 (33) and the ground conductor 34 does not change because of the protrusion 32C (33C). Therefore, in the electronic component 1, the capacitance formed by the capacitor conductor 32 (33) and the ground conductor 34 does not change. Therefore, in the electronic component 1, changes in the characteristics can be suppressed even if stacking misalignment occurs.
[0050] In the electronic component 1 according to this embodiment, the length in the first direction D1 of the first portion 32Ba (33Ba) of the connecting portion 32B (33B) is longer than the length in the first direction D1 of the protruding portion 32C (33C). With this configuration, even if the capacitor conductor 32 (33) and / or the ground conductor 34 is misaligned in the first direction D1, the facing area between the capacitor conductor 32 (33) and the ground conductor 34 does not change because of the presence of the protruding portion 32C (33C). Therefore, in the electronic component 1, the capacitance formed by the capacitor conductor 32 (33) and the ground conductor 34 does not change. Therefore, in the electronic component 1, even if a stacking misalignment occurs, changes in the characteristics can be suppressed.
[0051] In the electronic component 1 according to this embodiment, as viewed in the second direction D2, the distance L13 (L23) in the third direction D3 between the first portion 32Ba (33Ba) located in the first recess 34A (second recess 34B) and the ground conductor 34 is longer than the distance L14 (L24) in the first direction D1 between the second portion 32Bb (33Bb) and the ground conductor 34. With this configuration, even if the capacitor conductor 32 (33) and / or the ground conductor 34 is misaligned in the third direction D3, the opposing area between the first portion 32Ba (33Ba) of the connection portion 32B (33B) and the ground conductor 34 remains unchanged. Therefore, in the electronic component 1, the capacitance formed by the capacitor conductor 32 (33) and the ground conductor 34 remains unchanged. Therefore, even if the stacking is misaligned, the electronic component 1 can suppress changes in its characteristics.
[0052] Furthermore, in the electronic component 1, the corners 34Aa, 34Ab (34Ba, 34Bb) of the first recess 34A (second recess 34B) are curved. In this configuration, by making the distance L13 (L23) longer than the distance L14 (L24), it is possible to reliably ensure the distance between the first portion 32Ba (33Ba) of the connecting portion 32B (33B) and the ground conductor 34. Therefore, in the electronic component 1, even if the capacitor conductor 32 (33) and / or the ground conductor 34 is shifted in the third direction D3, it is possible to more reliably prevent changes in the opposing area between the first portion 32Ba (33Ba) of the connecting portion 32B (33B) and the ground conductor 34.
[0053] Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention.
[0054] In the above embodiment, the first portions 32Ba, 33Ba and the second portions 32Bb, 33Bb are integrally formed at the connection portions 32B, 33B of the capacitor conductors 32, 33. However, the first portions and the second portions do not necessarily have to be integrally formed at the connection portions.
[0055] Fig. 6 is a perspective view of an electronic component according to another embodiment. Fig. 7 is a side view of the electronic component shown in Fig. 6. Fig. 8 is an end view of the electronic component shown in Fig. 6. As shown in Figs. 6 to 8, in resonator 9A of electronic component 1A, first portion 32Ba and second portion 32Bb of connecting portion 32B are disposed at different positions (layers) in second direction D2. First portion 32Ba and second portion 32Bb are electrically connected by via conductor 32Bc. In electronic component 1A, first portion 33Ba and second portion 33Bb of connecting portion 33B are disposed at different positions (layers) in second direction D2. First portion 33Ba and second portion 33Bb are electrically connected by via conductor 33Bc.
[0056] In the above configuration, first portions 32Ba, 33Ba and second portions 32Bb, 33Bb are arranged in different positions (layers). This allows stress applied to connecting portions 32B, 33B to be dispersed in electronic component 1. As a result, in electronic component 1, cracks can be prevented from occurring in element body 2 in the areas around connecting portions 32B, 33B.
[0057] In the above embodiment, an example has been described in which the first conductors are capacitor conductors 32 and 33, and the second conductor is a ground conductor 34. However, the first conductor and the second conductor are not limited to being capacitor conductors and ground conductors. Furthermore, in the above embodiment, an example has been described in which two first conductors are provided, but the number of first conductors may be one, or three or more.
[0058] In the above embodiment, the first terminal electrode 3, the second terminal electrode 4, and the third terminal electrode 5 are arranged on the side surface 2e and the main surfaces 2c and 2d, and the fourth terminal electrode 6, the fifth terminal electrode 7, and the sixth terminal electrode 8 are arranged on the side surface 2f and the main surfaces 2c and 2d. However, the shapes (arrangement) of the first terminal electrode 3, the second terminal electrode 4, the third terminal electrode 5, the fourth terminal electrode 6, the fifth terminal electrode 7, and the sixth terminal electrode 8 are not limited to this. It is sufficient that the terminal electrodes are arranged on the side surfaces 2e and 2f of the element body 2. [Explanation of symbols]
[0059] 1, 1A...electronic component, 2...element body, 2a, 2b...end face, 2c, 2d...main surface, 2e, 2f...side face, 32, 33...capacitor conductor (first conductor), 32A...main body, 32B...connection portion, 32Ba...first portion, 32Bb...second portion, 32C...protrusion, 33A...main body, 33B...connection portion, 33Ba...first portion, 33Bb...second portion, 33C...protrusion, 34...ground conductor (second conductor), D1...first direction, D2...second direction, D3...third direction.
Claims
1. an element 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, and a pair of side faces facing each other in a third direction; a plurality of terminal electrodes arranged on the side surface; a first conductor disposed within the element body, the first conductor having a main body portion and a connection portion that electrically connects the main body portion to one of the plurality of terminal electrodes; a second conductor disposed in the element body at a position opposite to the first conductor in the second direction, the second conductor has a recess that opens toward the side surface on which one of the terminal electrodes is arranged, when viewed from the second direction; the connecting portion has a first portion extending in the first direction and one end connected to the main body portion, and a second portion extending in the third direction and one end connected to the other end of the first portion, When viewed from the second direction, a part of the first portion faces the second conductor, and the second portion is located in the recess.
2. The electronic component according to claim 1 , wherein the second conductor has a portion located outside the main body portion of the first conductor when viewed from the second direction.
3. the first conductor has a protrusion that extends in the first direction and is connected to one end of the main body portion, the other end being located opposite to the one end to which the first portion is connected in the first direction; The electronic component according to claim 1 , wherein the protruding portion has a portion positioned outside the second conductor when viewed from the second direction.
4. The electronic component according to claim 3 , wherein the length of the first portion in the first direction is longer than the length of the protrusion in the first direction.
5. 3. The electronic component according to claim 1, wherein, when viewed from the second direction, a distance in the third direction between the first portion located in the recess and the second conductor is longer than a distance in the first direction between the second portion and the second conductor.
6. the first portion and the second portion are disposed at different positions in the second direction within the element body, The electronic component according to claim 1 or 2, wherein the first portion and the second portion are electrically connected by a connecting conductor.
7. the second conductor is a ground conductor electrically connected to ground, The electronic component according to claim 1 , wherein the first conductor is a capacitor conductor that forms a capacitor together with the ground conductor.
8. two of the first conductors; one of the first conductors is electrically connected to one of the terminal electrodes arranged on one of the side surfaces, the other first conductor is electrically connected to another terminal electrode disposed at a position facing the one terminal electrode in the third direction on the other side surface, The electronic component according to claim 1 , wherein the second conductor has the recesses at positions facing the one terminal electrode and the other terminal electrode, respectively, when viewed from the second direction.
Citation Information
Patent Citations
Laminated ceramic electronic component
JP2006190774A