Electronic component

Abstract

To provide an electronic component having a plurality of series-connected capacitor portions, which can improve performance.SOLUTION: A third internal electrode 13 has an opening 30 in a region between a first internal electrode 11 and a second internal electrode 12 when viewed from the Z-axis direction. This makes it possible to reduce the electric field strength in the vicinity of the region between the first internal electrode 11 and the second internal electrode 12. This makes it possible to suppress cracks in an element body 2 caused by electric field concentration. As a result, it is possible to improve the performance of an electronic component 100 having a plurality of capacitor units connected in series.SELECTED DRAWING: Figure 3

Description

[Technical Field]

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

[0002] A conventional electronic component is known from Patent Document 1. This electronic component includes an element body and a pair of terminal electrodes. Internal electrodes are formed inside the element body to form two sets of capacitor sections. Inside the element body, a first internal electrode and a second internal electrode are formed, spaced apart from each other, and a third internal electrode is formed opposite these internal electrodes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-46876 Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, there has been a demand for improving the performance of electronic components having a plurality of capacitor sections connected in series inside the element body.

[0005] The present invention has been made to solve such problems, and has an object to provide an electronic component having a plurality of capacitor units connected in series, which can improve performance. [Means for solving the problem]

[0006] The electronic component according to the present invention comprises an element body having a first main surface and a second main surface facing in a first direction, a first end surface and a second end surface facing in a second direction perpendicular to the first direction, and a first side surface and a second side surface facing in a third direction perpendicular to the first direction and the second direction, a first terminal electrode formed on the first end surface, a second terminal electrode formed on the second end surface, an external connecting conductor formed on at least one of the first side surface and the second side surface, a first internal electrode provided within the element body and connected to the first terminal electrode at the first end surface, and an external connecting conductor provided within the element body, The element comprises a second internal electrode separated from the first internal electrode and connected to the second terminal electrode at the second end face, and a third internal electrode provided within the element body, facing the first internal electrode and the second internal electrode in a first direction, and connected to an external connecting conductor, wherein a first capacitor section formed by the first internal electrode and the third internal electrode facing each other and a second capacitor section formed by the second internal electrode and the third internal electrode facing each other are connected in series, and the third internal electrode has an opening in the region between the first internal electrode and the second internal electrode when viewed from the first direction.

[0007] In this electronic component, the first internal electrode connected to the first terminal electrode faces the third internal electrode, and the second internal electrode connected to the second terminal electrode faces the third internal electrode. With this configuration, a first capacitor section formed by the opposing first and third internal electrodes and a second capacitor section formed by the opposing second and third internal electrodes are connected in series via the third internal electrode. Therefore, even if one capacitor section shorts out, the other capacitor section can maintain its function, improving reliability. Furthermore, the use of terminal electrodes and external connecting conductors allows each capacitor section to be measured and tested for short-circuit defects. Here, the third internal electrode has an opening in the region between the first and second internal electrodes when viewed from the first direction. This reduces the electric field intensity near the region between the first and second internal electrodes. This prevents cracks in the element body due to electric field concentration. As a result, the performance of an electronic component having multiple capacitor sections connected in series can be improved.

[0008] The third inner electrode may include a first region closer to the first end face than the opening, a second region closer to the second end face than the opening, and a connecting portion connecting the first region and the second region, and the connecting portion may be formed on the side surface on which the external connecting conductor is provided. In this case, the connecting portion can be located closer to the external connecting conductor. Therefore, by shortening the length of the lead portion of the third inner electrode to the external connecting conductor, Joule heat due to current in the lead portion can be reduced, and the possibility of damage due to the Joule heat can be reduced.

[0009] The external connecting conductor may be formed on the first side surface and the second side surface, and the third internal electrode may have, as connecting portions, a first connecting portion connected to the external connecting conductor on the first side surface and a second connecting portion connected to the external connecting conductor on the second side surface. In this case, the presence or absence of a short circuit defect can be measured and tested using either the external connecting conductor on the first side surface or the second side surface.

[0010] The width of the connecting portion of the third internal electrode in the third direction may be 10% or more of the overlap width of the first capacitor portion and the second capacitor portion in the third direction. In this case, by ensuring the width of the connecting portion, Joule heat due to current can be reduced and damage due to the Joule heat can be suppressed.

[0011] The length of the connecting portion of the third internal electrode in the second direction may be 100% or less of the overlap length of the first capacitor portion and the second capacitor portion in the second direction. In this case, by reducing the length of the connecting portion, Joule heat due to current can be reduced, and damage due to the Joule heat can be suppressed.

[0012] The width of the connecting portion of the third internal electrode in the third direction may be larger than the width of the lead portion connected to the external connecting conductor in the second direction. In this case, by ensuring the width of the connecting portion, Joule heat due to current can be reduced and connectivity with the external connecting conductor can be ensured.

[0013] The first internal electrode may have a first lead portion extending from the first capacitor portion to the first terminal electrode, and the second internal electrode may have a second lead portion extending from the second capacitor portion to the second terminal electrode, and the first and second lead portions may be narrower in width in the third direction than the first and second capacitor portions. In this case, the area of ​​the first and second internal electrodes overlapping with the edge of the third internal electrode can be reduced near the edges of the end faces of the first and second capacitor portions. This reduces the electric field strength near the end faces, thereby reducing cracks.

[0014] The width of the opening in the second direction may be at least twice the thickness in the first direction of the first dielectric layer between the first and second inner electrodes and the third inner electrode, in which case the withstand voltage performance near the opening can be improved to be greater than the interlayer withstand voltage performance of the first dielectric layer.

[0015] A first buffer layer may be formed inside the opening to buffer the formation of depressions in the element body. In this case, depressions in the main surface of the element body can be reduced, making it easier to pick up the element body by suction.

[0016] A second relaxation layer may be formed between the first internal electrode and the second internal electrode to relax the formation of depressions in the element body. In this case, depressions on the main surface of the element body can be reduced, making it easier to pick up the element body by suction.

[0017] The first and second relaxation layers may be composed of a conductor layer or a second dielectric layer. In this case, the conductor layer or the second dielectric layer can sufficiently support the inside of the opening, thereby reducing depressions in the main surface of the element body. This makes it easier to pick up the element body by suction. [Effects of the Invention]

[0018] According to the present invention, it is possible to provide an electronic component having a plurality of capacitor sections connected in series, which can improve performance. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1(a) is a plan view of the electronic component according to this embodiment, and FIG. 1(b) is a front view of the electronic component according to this embodiment. [Figure 2] 2(a) is a cross-sectional view taken along line IIa-IIa shown in FIG. 1(a), and FIG. 2(b) is a cross-sectional view taken along line IIb-IIb shown in FIG. 1(a). [Figure 3] Figure 3(a) is a diagram showing the third internal electrode, Figure 3(b) is a diagram showing the first internal electrode and the second internal electrode, and Figure 3(c) is a diagram showing the positional relationship when the first internal electrode, the second internal electrode, and the third internal electrode are superimposed. [Figure 4] FIG. 10 is an exploded perspective view showing the state of stacking. [Figure 5] FIG. 10 is a diagram showing the results of simulating the electric field strength of a comparative example and an example. [Figure 6] 10 is a graph showing the relationship between the amount of stacking misalignment and the electric field concentration factor in the comparative example and the example. [Figure 7] 7(a) and 7(b) are cross-sectional views showing the electronic component according to the embodiment, and FIGS. 7(c) and 7(d) are cross-sectional views showing the electronic component according to the comparative example. [Figure 8] 10A and 10B are diagrams illustrating internal electrodes of an electronic component according to a modified example. [Figure 9] 10A and 10B are diagrams illustrating internal electrodes of an electronic component according to a modified example. [Figure 10] 10A and 10B are diagrams illustrating internal electrodes of an electronic component according to a modified example. [Figure 11] 10A and 10B are diagrams illustrating internal electrodes of an electronic component according to a modified example. [Figure 12] 10A and 10B are diagrams illustrating internal electrodes of an electronic component according to a modified example. [Figure 13] 10A and 10B are diagrams illustrating internal electrodes of an electronic component according to a modified example. [Figure 14] 10A and 10B are diagrams illustrating internal electrodes of an electronic component according to a modified example. [Figure 15]10A and 10B are diagrams illustrating internal electrodes of an electronic component according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description, the same elements or elements having the same functions will be denoted by the same reference numerals, and redundant description will be omitted.

[0021] First, the configuration of an electronic component 100 according to this embodiment will be described with reference to FIGS. 1 to 4. FIG. 1(a) is a plan view of the electronic component according to this embodiment, and FIG. 1(b) is a front view of the electronic component according to this embodiment. FIG. 2(a) is a cross-sectional view taken along line IIa-IIa in FIG. 1(a), and FIG. 2(b) is a cross-sectional view taken along line IIb-IIb in FIG. 1(b). The cross-sectional position of FIG. 2(a) is indicated by section point CP1 in FIG. 3(c). The cross-sectional position of FIG. 2(b) is indicated by section point CP2 in FIG. 3(c). FIG. 3(a) is a diagram showing a third internal electrode, FIG. 3(b) is a diagram showing the first and second internal electrodes, and FIG. 3(c) is a diagram showing the positional relationship between the first and second internal electrodes and the third internal electrode when they are superimposed. FIG. 4 is an exploded perspective view showing the state of lamination. In FIG. 3(c), the first and second internal electrodes are shown by virtual lines.

[0022] In the following description, an XYZ coordinate system may be set for electronic component 100. The Z-axis direction (first direction) is the stacking direction in which internal electrodes (described later) are stacked. The Z-axis direction is a direction perpendicular to the surface of the circuit board on which the component is to be mounted during mounting. The X-axis direction (second direction) is a direction perpendicular to the Z-axis direction and parallel to the surface of the circuit board during mounting. The X-axis direction corresponds to the longitudinal direction in which element body 2 extends. The Y-axis direction (third direction) is a direction perpendicular to the Z-axis direction and the X-axis direction, and is a direction parallel to the surface of the circuit board during mounting and perpendicular to the X-axis direction. In FIG. 1, the upper side is the positive side in the Z-axis direction, and the lower side is the negative side in the Z-axis direction.

[0023] 1, the electronic component 100 includes an element body 2, a first terminal electrode 3, a second terminal electrode 4, and first and second outer connecting conductors 6A and 6B. As shown in FIG. 2, the electronic component 100 includes a first inner electrode 11, a second inner electrode 12, and a third inner electrode 13 within the element body 2.

[0024] As shown in FIG. 1, the element body 2 is a rectangular parallelepiped component extending along the X-axis direction, which is the longitudinal direction. The element body 2 has a first main surface 2a and a second main surface 2b facing each other in the Z-axis direction, a first end surface 2c and a second end surface 2d facing each other in the X-axis direction, and a first side surface 2e and a second side surface 2f facing each other in the Y-axis direction. The first main surface 2a is located on the negative side of the Z-axis direction, and the second main surface 2b is located on the positive side of the Z-axis direction. The first end surface 2c is located on the negative side of the X-axis direction, and the second end surface 2d is located on the positive side of the X-axis direction. The first side surface 2e is located on the negative side of the Y-axis direction, and the second side surface 2f is located on the positive side of the Y-axis direction. Of these, the first main surface 2a serves as the mounting surface that faces a mounting board during mounting.

[0025] The shape of element body 2 is not particularly limited, but here it has a rectangular parallelepiped shape with the dimension in the X-axis direction greater than the dimensions in the Z-axis and Y-axis directions. Rectangular parallelepiped shapes include rectangular parallelepiped shapes with chamfered corners and ridges, and rectangular parallelepiped shapes with rounded corners and ridges. For example, the length of element body 2 in the X-axis direction may be 0.5 to 7.7 mm, the length in the Y-axis direction may be 0.29 to 4.7 mm, and the length in the Z-axis direction may be 0.29 to 4.0 mm.

[0026] The element body 2 is configured by stacking multiple dielectric layers (dielectric layers 5 shown in FIG. 2(a)) in the Z-axis direction. Each dielectric layer is configured, 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 dielectric layers 5 are integrated to the extent that the boundaries between the dielectric layers 5 are not visible.

[0027] The terminal electrodes 3, 4 are provided to cover the end faces 2c, 2d of the element body 2. The terminal electrodes 3, 4 are portions for electrically connecting the electronic component 100 to other members. The terminal electrodes 3, 4 have main body portions 3a, 4a and wraparound portions 3b, 4b. The main body portions 3a, 4a are formed on the end faces 2c, 2d of the element body 2. The main body portions 3a, 4a are formed to cover the entire end faces 2c, 2d. The wraparound portions 3b, 4b are formed to wrap around from the main body portions 3a, 4a to the principal faces 2a, 2b and the side faces 2e, 2f. The wraparound portion 3b is formed to cover a portion of the main faces 2a, 2b and the side faces 2e, 2f near the first end face 2c. The wraparound portion 4b is formed to cover a portion of the main faces 2a, 2b and the side faces 2e, 2f near the second end face 2d.

[0028] The first external linking conductor 6A is a conductor that connects to the plurality of third internal electrodes 13 outside the element body 2. The second external linking conductor 6B is a conductor that connects to the plurality of third internal electrodes 13 outside the element body 2. The first and second external linking conductors 6A, 6B are formed in an approximate center position in the X-axis direction of the element body 2. The first and second external linking conductors 6A, 6B are formed spaced apart from the terminal electrodes 3, 4 in the X-axis direction. The first external linking conductor 6A is formed on the side surface 2e. The first external linking conductor 6A extends over the entire length of the side surface 2e in the Z-axis direction. The first external linking conductor 6A wraps around to the principal surfaces 2a, 2b. The second external linking conductor 6B is formed on the side surface 2f. The second external linking conductor 6B extends over the entire length of the side surface 2f in the Z-axis direction. The second external linking conductor 6B wraps around to the principal surfaces 2a, 2b. The ends 6a, 6b on the principal surface 2b of the first and second external linking conductors 6A, 6B are spaced apart from each other in the Y-axis direction. The ends (not shown but having the same configuration as the principal surface 2b in FIG. 1(a)) on the principal surface 2a of the first and second external linking conductors 6A, 6B are spaced apart from each other in the Y-axis direction. As a result, regions near the centers of the first and second principal surfaces 2a, 2b are exposed to the first and second external linking conductors 6A, 6B. Furthermore, with this configuration, the first and second external linking conductors 6A, 6B are mechanically and electrically separated from each other.

[0029] The materials of the terminal electrodes 3, 4 and the external connecting conductor 6 are not particularly limited, but may include copper. The terminal electrodes 3, 4 and the first and second external connecting conductors 6A, 6B may be copper baked layers, or a Ni-plated layer, Sn-plated layer, or the like may be formed on these baked layers. The terminal electrodes 3, 4 and the external connecting conductor 6 may also include a conductive resin layer made of a material such as silver.

[0030] As shown in FIG. 2 , the internal electrodes 11, 12, and 13 are flat conductor patterns extending parallel to the XY plane. A plurality of the internal electrodes 11, 12, and 13 are formed in the Z-axis direction. The first internal electrode 11 is provided in a region on the negative side of the X-axis direction within the element body 2 and is connected to the first terminal electrode 3 at the first end face 2c. The second internal electrode 12 is provided in a region on the positive side of the X-axis direction within the element body 2 and is connected to the second terminal electrode 4 at the second end face 2d. The first internal electrode 11 and the second internal electrode 12 are arranged in the same plane. That is, the first internal electrode 11 and the second internal electrode 12 are formed on the same dielectric layer 5 and are positioned at the same position in the Z-axis direction. Before lamination, the conductor patterns of the first internal electrode 11 and the second internal electrode 12 are formed on the ceramic green sheets of the dielectric layer 5. The first internal electrode 11 and the second internal electrode 12 are mechanically (physically, structurally) separated (spaced apart) from each other. The layer having the first internal electrode 11 and the second internal electrode 12 may be referred to as the first electrode layer 41. When the internal electrodes are separated from each other, the material of the dielectric layer 5 is present in the entire area between one internal electrode and the other internal electrode.

[0031] The third internal electrode 13 is provided in both the negative and positive regions in the X-axis direction within the element body 2, and is extended to the first side surface 2e and the second side surface 2f (see FIG. 3(a)). Before lamination, the third internal electrode 13 is formed on the ceramic green sheets of the dielectric layers 5. The layer having the third internal electrode 13 may be referred to as the second electrode layer 42.

[0032] 3(a) to 3(c), in the Z-axis direction, the first internal electrode 11 does not face the second internal electrode 12, but faces a part of the first region 21 on the negative side in the X-axis direction of the third internal electrode 13. In the Z-axis direction, the second internal electrode 12 does not face the first internal electrode 11, but faces a part of the second region 22 on the positive side in the X-axis direction of the third internal electrode 13. The first internal electrode 11 and the first region 21 are arranged so as to be separated from the second internal electrode 12 and the second region 22 with a gap in the X-axis direction.

[0033] An example of a specific shape of each internal electrode 11, 12, 13 will be described with reference to Figure 3(b). As shown in Figure 3(b), the first internal electrode 11 extends from the first end face 2c toward the center of the element body 2 toward the positive side in the X-axis direction. An edge 11a on the inside in the X-axis direction (the positive side in the X-axis direction) of the first internal electrode 11 extends parallel to the Y-axis direction. An edge on the negative side in the X-axis direction of the first internal electrode 11 is exposed from the first end face 2c and connected to the first terminal electrode 3. An edge on the negative side in the Y-axis direction of the first internal electrode 11 is spaced apart from and parallel to the first side face 2e. An edge on the positive side in the Y-axis direction of the first internal electrode 11 is spaced apart from and parallel to the second side face 2f.

[0034] The second internal electrode 12 extends from the second end face 2d toward the center of the element body 2 toward the negative side in the X-axis direction. An inner edge 12a of the second internal electrode 12 in the X-axis direction (negative side in the X-axis direction) extends parallel to the Y-axis direction. The edge 12a of the second internal electrode 12 is parallel to and spaced apart from the edge 11a of the first internal electrode 11 in the X-axis direction. The edge of the second internal electrode 12 on the positive side in the X-axis direction is exposed from the second end face 2d and connected to the second terminal electrode 4. The edge of the second internal electrode 12 on the negative side in the Y-axis direction is parallel to and spaced apart from the first side face 2e. The edge of the second internal electrode 12 on the positive side in the Y-axis direction is parallel to and spaced apart from the second side face 2f. Both edge portions of the second internal electrode 12 in the Y-axis direction are located at the same positions in the Y-axis direction as both edge portions of the first internal electrode 11 on the Y-axis direction.

[0035] 3(a), the third internal electrode 13 includes a first region 21, a second region 22, a first connecting portion 23, a second connecting portion 24, a lead portion 26, and a lead portion 27. The third internal electrode 13 has an opening 30 in a region between the first internal electrode 11 and the second internal electrode 12 when viewed from the Z-axis direction.

[0036] The first region 21 is a region closer to the first end face 2c than the opening 30. The first region 21 is a portion arranged to overlap the first internal electrode 11 (see FIG. 3(c)). The edge of the first region 21 on the positive side in the X-axis direction (edge ​​30a of the opening 30) extends parallel to the Y-axis direction. The edge of the first region 21 on the negative side in the X-axis direction is spaced away from the first end face 2c toward the positive side in the X-axis direction. The edges on both sides of the first region 21 in the Y-axis direction have the same shape as the ends on both sides of the first internal electrode 11 in the Y-axis direction and are arranged at the same positions (see FIG. 3(c)).

[0037] The second region 22 is a region closer to the second end face 2d than the opening 30. The second region 22 is a portion arranged to overlap the second internal electrode 12 (see FIG. 3(c)). The edge portion of the second region 22 on the negative side in the X-axis direction (edge ​​portion 30b of the opening 30) extends parallel to the Y-axis direction. The edge portion of the second region 22 on the positive side in the X-axis direction is spaced away from the second end face 2d to the negative side in the X-axis direction. The edges on both sides of the second region 22 in the Y-axis direction have the same shape as the ends on both sides of the second internal electrode 12 in the Y-axis direction and are arranged at the same positions (see FIG. 3(c)).

[0038] The first coupling portion 23 and the second coupling portion 24 couple the first region 21 and the second region 22. The first coupling portion 23 is formed on the first side surface 2e side on which the first external coupling conductor 6A is provided. The first coupling portion 23 is connected to the first external coupling conductor 6A on the first side surface 2e via the lead-out portion 26. The edge portion on the negative side in the Y-axis direction of the first coupling portion 23 extends in the X-axis direction at the same position in the Y-axis direction as the edges on the negative sides in the Y-axis direction of the first and second regions 21 and 22. The edge portion on the positive side in the Y-axis direction of the first coupling portion 23 (edge ​​portion 30c of the opening 30) is an edge portion that defines the edge portion on the negative side in the Y-axis direction of the opening 30 and extends in the X-axis direction. The second coupling portion 24 is formed on the second side surface 2f side on which the second external coupling conductor 6B is provided. The second coupling portion 24 is connected to the second external coupling conductor 6B at the second side surface 2f via the lead-out portion 27. The edge portion of the second coupling portion 24 on the positive side in the Y-axis direction extends in the X-axis direction at the same position in the Y-axis direction as the edges of the first and second regions 21, 22 on the positive side in the Y-axis direction. The edge portion of the second coupling portion 24 on the negative side in the Y-axis direction (edge ​​30d of opening 30) is an edge portion that defines the edge portion of the opening 30 on the positive side in the Y-axis direction, and extends in the X-axis direction.

[0039] The lead portion 26 is drawn from the first coupling portion 23 toward the negative side in the Y-axis direction and exposed at the first side surface 2e, thereby being connected to the first external linking conductor 6A. The lead portion 26 extends parallel to the Y-axis direction from the center position of the first coupling portion 23 in the X-axis direction. However, as long as it is connected to the first external linking conductor 6A, the position of the lead portion 26 in the X-axis direction is not particularly limited, and it may extend at an angle to the Y-axis direction. The lead portion 27 is drawn from the second coupling portion 24 toward the positive side in the Y-axis direction and exposed at the second side surface 2f, thereby being connected to the second external linking conductor 6B. The lead portion 27 extends parallel to the Y-axis direction from the center position of the second coupling portion 24 in the X-axis direction. However, as long as it is connected to the second external linking conductor 6B, the position of the lead portion 27 in the X-axis direction is not particularly limited, and it may extend at an angle to the Y-axis direction.

[0040] The opening 30 is a region where no conductor layer constituting the third internal electrode 13 is provided. Note that, like the first relaxation layer 31 described below, a conductor layer separated from the third internal electrode 13 may be provided within the opening 30. The opening 30 is a region surrounded by edges 30a, 30b, 30c, and 30d. The edge 30a is formed by the edge on the positive side of the first region 21 in the X-axis direction. The edge 30b is formed by the edge on the negative side of the second region 22 in the X-axis direction. The edge 30c is formed by the edge on the positive side of the first coupling portion 23 in the Y-axis direction. The edge 30d is formed by the edge on the negative side of the second coupling portion 24 in the Y-axis direction. In this embodiment, the opening 30 has a rectangular shape with its longitudinal direction in the Y-axis direction. However, the shape of the opening 30 is not particularly limited and may be an oval shape, for example. The opening 30 may be formed in a range that includes at least the central position in the Y-axis direction of the element body 2. The size of the opening 30 will be described later.

[0041] In this embodiment, the first internal electrode 11 does not overlap with the second internal electrode 12 and the second region 22 in the Z-axis direction. The second internal electrode 12 does not overlap with the first internal electrode 11 and the first region 21 in the Z-axis direction. The internal electrodes 11, 12, and 13 are mechanically and electrically isolated from one another.

[0042] 2, when viewed from the Z-axis direction, the element body 2 has a gap 25 where the internal electrodes 11, 12, 13 are not formed at the position of the opening 30. Specifically, the gap 25 is formed by combining the gap between the edge 11a of the first internal electrode 11 and the edge 12a of the second internal electrode 12, and the gap between the edge 30a and the edge 30b of the opening 30 of the third internal electrode 13. The combination of these gaps continues in the Z-axis direction, thereby forming the gap 25.

[0043] The stacking order of the first electrode layers 41 and the second electrode layers 42 is not particularly limited, and may be, for example, the order shown in Fig. 4. As shown in Fig. 4, in the element body 2, a plurality of first electrode layers 41 and a plurality of second electrode layers 42 are stacked. The first electrode layers 41 and the second electrode layers 42 are stacked alternately. That is, from the bottom, the first electrode layer 41, the second electrode layer 42, the first electrode layer 41, and the second electrode layer 42 are stacked in this order, and this stacking order is repeated.

[0044] The first internal electrode 11 and the second internal electrode 12 are arranged in the outermost layer of the laminated internal electrodes. That is, of the internal electrodes arranged inside the element body 2, the first internal electrode 11 and the second internal electrode 12 are arranged furthest on the positive side in the Z-axis direction, and the first internal electrode 11 and the second internal electrode 12 are arranged furthest on the negative side in the Z-axis direction.

[0045] Next, the circuit structure formed by the above-mentioned laminated structure will be described. First, as shown in Fig. 4, a current flows through the first internal electrode 11. A first capacitor section 10A is formed between the first internal electrode 11 and the first region 21 of the third internal electrode 13. The first region 21 and the second region 22 of the third internal electrode 13 are connected via connecting portions 23 and 24. A second capacitor section 10B is formed between the second region 22 of the third internal electrode 13 and the second internal electrode 12. As described above, the first capacitor section 10A formed by the first internal electrode 11 and the first region 21 facing each other and the second capacitor section 10B formed by the second internal electrode 12 and the second region 22 facing each other are connected in series via the connecting portions 23 and 24.

[0046] The first inner electrode 11 has a first lead portion 28 that is led from the first capacitor portion 10A to the first terminal electrode 3 (see FIGS. 3(b) and 3(c)). The second inner electrode 12 has a second lead portion 29 that is led from the second capacitor portion 10B to the second terminal electrode 4 (see FIGS. 3(b) and 3(c)).

[0047] Next, the dimensional relationships will be described. As shown in Fig. 3(c), the overlap width W1 between the first capacitor section 10A and the second capacitor section 10B in the Y-axis direction may be set to 0.25 to 4.3 mm. The overlap length L1 between the first capacitor section 10A and the second capacitor section 10B in the X-axis direction may be set to 0.20 to 3.8 mm.

[0048] As shown in FIG. 3( a), the width W2 in the Y-axis direction of the connecting portions 23, 24 of the third inner electrode 13 may be 10% or more, more preferably 12% or more, of the overlapping width W1 in the Y-axis direction of the first capacitor section 10A and the second capacitor section 10B. The upper limit of the width W2 of the connecting portions 23, 24 is not particularly limited, but may be 45% or less of the overlapping width W1. The width W2 in the Y-axis direction of the connecting portions 23, 24 of the third inner electrode 13 may be larger than the width W3 in the X-axis direction of the lead portions 26, 27 connected to the external connecting conductors 6A, 6B. The size of the width W2 of the connecting portions 23, 24 relative to the width W3 of the lead portions 26, 27 is not particularly limited, but the width W2 may be 105 to 3500% of the width W3.

[0049] 3(a), the length L2 in the X-axis direction of the connecting portions 23, 24 of the third inner electrode 13 may be 100% or less, and more preferably 70% or less, of the overlap length L1 in the X-axis direction of the first capacitor portion 10A and the second capacitor portion 10B. The lower limit of the length L2 of the connecting portions 23, 24 is not particularly limited, but may be at least twice the thickness T of the dielectric layer 5.

[0050] 3(c), the lead portions 28, 29 of the internal electrodes 11, 12 may have a larger area than the connecting portions 23, 24 of the third internal electrode 13. The area of ​​the lead portions 28, 29 of the internal electrodes 11, 12 may be 103 to 1000% of the area of ​​the connecting portions 23, 24 of the third internal electrode 13.

[0051] The width W4 of the opening 30 in the X-axis direction may be at least twice, more preferably at least five times, the thickness T of one dielectric layer 5 (see FIG. 2) in the Z-axis direction between the internal electrodes 11, 12 and the third internal electrode 13. The upper limit of the width W4 of the opening 30 is not particularly limited, but may be 1000 times or less the thickness T of the dielectric layer 5. The thickness T of the dielectric layer 5 is not particularly limited, but may be set to approximately 1 to 50 μm. The dimension in the X-axis direction between the edge portions 11a, 12a of the internal electrodes 11, 12 may be approximately equal to the width W4 of the opening 30. Therefore, the width of the gap 25 in the X-axis direction may be approximately equal to the width W4 of the opening 30. The width of the gap 25 in the X-axis direction is the maximum dimension of the gap 25 in the X-axis direction.

[0052] As shown in FIG. 2(a), the edge 30a of the opening 30 on the negative side in the X-axis direction is preferably positioned at the same position in the X-axis direction as the edge 11a of the first internal electrode 11. The edge 30b of the opening 30 on the positive side in the X-axis direction is preferably positioned at the same position in the X-axis direction as the edge 12a of the second internal electrode 12. In the cross-sectional view shown in FIG. 2(a), a reference line SL1 extending in the Z-axis direction is set relative to the position of the edge 11a of the first internal electrode 11, and a reference line SL2 extending in the Z-axis direction is set relative to the position of the edge 12a of the second internal electrode 12. In this case, the edges 30a, 30b of the opening 30 are preferably positioned on the reference lines SL1, SL2. The dimension in the X-axis direction between the edges 30a, 30b of the opening 30 and the reference lines SL1, SL2 is referred to as the "lamination misalignment amount." When there is no misalignment in the X-axis direction between the edges 11a, 12a and the edges 30a, 30b, the "lamination misalignment amount = 0." The lamination misalignment amount between the edges 11a, 12a and the edges 30a, 30b is acceptable as long as it is within a predetermined range.

[0053] The allowable range of lamination misalignment will be described with reference to FIGS. 5 and 6. FIG. 5(a) shows the results of simulating the electric field intensity for a model of an electronic component according to a comparative example. The electronic component according to the comparative example employs a third internal electrode 123 that does not have an opening 30. The third internal electrode 123 extends above and below the edge 12a of the second internal electrode 12 on both sides in the Y-axis direction. In this case, as shown by A in FIG. 5(b), a region where the electric field intensity is high is formed near the edge 12a. The electric field concentration factor was calculated based on the maximum value of the electric field intensity at this time and plotted on the graph in FIG. 6. The electric field concentration factor is a parameter that indicates the relative electric field intensity at the location where the electric field intensity is maximum, when the electric field intensity at the center of the capacitor section is set to 1.

[0054] Next, a model of an electronic component according to the embodiment having an opening 30 was prepared, and the electric field intensity was simulated. Measurements were performed by varying the magnitude of the lamination misalignment on both the positive and negative sides of the X-axis. The electric field concentration factor for each result was calculated and plotted on the graph shown in Figure 6. The horizontal axis of the graph in Figure 6 represents the lamination misalignment, and the vertical axis represents the electric field concentration factor. The lamination misalignment is expressed as a multiple of the thickness T of the dielectric layer 5, which is set to 1. When the lamination misalignment is 0, the electric field intensity near the edge 12a is reduced, as shown in Figure 5(c). As shown in Figure 6, the electric field concentration factor increases as the lamination misalignment increases. When the lamination misalignment is "thickness T of the dielectric layer × 8," the electric field concentration factor is approximately the same as that of the comparative example. Therefore, setting the lamination misalignment to 8 times or less the thickness T of the dielectric layer 5 effectively suppresses electric field concentration.

[0055] A field intensity simulation was performed using the finite element method. The dimensions of the electronic components according to the example and comparative example were set as follows. Specifically, the element body 2 had a length L in the X-axis direction of 1.6 mm, a width W in the Y-axis direction of 0.8 mm, and a thickness T in the Z-axis direction of 0.8 mm. The thickness of the dielectric layer was set to 1 to 5 μm. The dimension of the opening 30 in the X-axis direction was set to 0.1 to 0.3 mm, and the dimension in the Y-axis direction was set to 0.36 mm.

[0056] Next, the functions and effects of the electronic component 100 according to this embodiment will be described.

[0057] First, an electronic component according to a comparative example will be described. FIG. 7(c) is a schematic cross-sectional view showing the internal structure of the element body 2 of an electronic component 200 according to the comparative example. Instead of the internal electrode 13 of the present embodiment, the electronic component 200 includes an internal electrode 115 that simultaneously forms the first capacitor portion 10A and the second capacitor portion 10B but does not have an opening 30. The internal electrode 115 is not connected to an external connecting conductor. The internal electrode 115 extends so as to face both the first internal electrode 11 and the second internal electrode 12. Therefore, no gap 25 is formed in the element body 2, and the internal electrode 115 has a connecting portion CT that connects the first capacitor portion 10A and the second capacitor portion 10B. Since this electronic component 200 does not have an external connecting conductor, if one of the first capacitor portion 10A and the second capacitor portion 10B is shorted, the short cannot be detected. Furthermore, if a crack CR occurs in one of the first capacitor parts 10A, the crack CR may travel along the connecting part CT to the other of the second capacitor parts 10B. In this case, the short circuit in one of the first capacitor parts 10A may cause a short circuit in both of the capacitor parts 10A and 10B.

[0058] 7(d) is a schematic cross-sectional view of an electronic component 250 according to a comparative example having the configuration disclosed in JP 2019-46876 A. The electronic component 250 has capacitor units 10A and 10B arranged in the stacking direction. Although it is possible to detect individual short circuits in each of the capacitor units 10A and 10B in the electronic component 250, due to the short interlayer distance, there is a possibility that both capacitor units 10A and 10B may be short-circuited when a flexure crack CR occurs.

[0059] In contrast, in the electronic component 100 according to this embodiment, the first internal electrode 11 connected to the first terminal electrode 3 faces the first region 21 of the third internal electrode 13, and the second internal electrode 12 connected to the second terminal electrode 4 faces the second region 22 of the third internal electrode 13. The first region 21 and the second region 22 of the third internal electrode 13 are electrically connected via the connecting portions 23 and 24. This configuration allows the first capacitor section 10A, formed by the first internal electrode 11 facing the first region 21, and the second capacitor section 10B, formed by the second internal electrode 12 facing the second region 22, to be connected in series via the connecting portions 23 and 24. This improves reliability. For example, as shown in FIG. 7(a), even if a crack CR occurs in the capacitor section 10A, causing a short circuit, the capacitor section 10B can still be used. Furthermore, by using the first terminal electrode 3 and the external connecting conductors 6A and 6B, it is possible to measure and test whether or not there is a short circuit defect in the capacitor sections 10A and 10B.

[0060] As shown in FIG. 7( c), in the electronic component 200 according to the comparative example, the electric field intensity is high near the edge portions on the central side of the internal electrodes 11 and 12 due to the influence of the connecting portion CT (see also FIGS. 5( a) and 5(b)). Therefore, cracks CRX may occur originating from the electric field concentration points on the edge portions on the central side of the internal electrodes 11 and 12. In contrast, in the present embodiment, the third internal electrode 13 has an opening 30 in the region between the first internal electrode 11 and the second internal electrode 12 when viewed from the Z-axis direction. Therefore, the electric field intensity can be reduced near the region between the first internal electrode 11 and the second internal electrode 12. Therefore, cracks in the element body 2 due to electric field concentration can be suppressed. As a result, the performance of the electronic component 100 having a plurality of capacitor units connected in series can be improved.

[0061] Furthermore, gap 25 is formed between capacitor portion 10A and capacitor portion 10B by opening 30. Therefore, as shown in Fig. 7(b), a crack CR that occurs in one capacitor portion 10A can be prevented from reaching the other capacitor portion 10B along connecting portion CT. This prevents cracks CR from occurring in both capacitor portions 10A and 10B and causing short circuits.

[0062] The third inner electrode 13 includes a first region 21 located closer to the first end face 2c than the opening 30, a second region 22 located closer to the second end face 2d than the opening 30, and connecting portions 23, 24 connecting the first region 21 and the second region 22. The connecting portions 23, 24 may be formed on the side faces 2e, 2f on which the external connecting conductors 6A, 6B are provided. In this case, the connecting portions 23, 24 can be located closer to the external connecting conductors 6A, 6B. Therefore, by shortening the lengths of the lead portions 26, 27 of the third inner electrode 13 to the external connecting conductors 6A, 6B, Joule heat due to current in the lead portions 26, 27 can be reduced, thereby reducing the possibility of damage due to the Joule heat.

[0063] The external connecting conductors 6A and 6B are formed on the first side surface 2e and the second side surface 2f, and the third internal electrode 13 may have, as connecting portions, a first connecting portion 23 connected to the external connecting conductor 6A on the first side surface 2e and a second connecting portion 24 connected to the external connecting conductor 6B on the second side surface 2f. In this case, the presence or absence of a short circuit defect can be measured and inspected using the external connecting conductor 6A, 6B on either the first side surface 2e or the second side surface 2f.

[0064] The width W2 in the Y-axis direction of the connecting portions 23, 24 of the third inner electrode 13 may be 10% or more of the overlap width W1 in the Y-axis direction of the first capacitor portion 10A and the second capacitor portion 10B. In this case, by ensuring the width of the connecting portions 23, 24, Joule heat due to current can be reduced, and damage due to the Joule heat can be suppressed.

[0065] The length L2 in the X-axis direction of the connecting portions 23, 24 of the third inner electrode 13 may be 100% or less of the overlap length L1 in the X-axis direction of the first capacitor portion 10A and the second capacitor portion 10B. In this case, by reducing the length of the connecting portions 23, 24, Joule heat due to current can be reduced, and damage due to the Joule heat can be suppressed.

[0066] The width W2 in the Y-axis direction of the connecting portions 23, 24 of the third inner electrode 13 may be larger than the width W3 in the X-axis direction of the lead portions 26, 27 connected to the external connecting conductors 6A, 6B. In this case, by ensuring the width of the connecting portions 23, 24, Joule heat due to current can be reduced and the connectivity with the external connecting conductors 6A, 6B can be ensured.

[0067] The width W4 of the opening 30 in the X-axis direction may be at least twice the thickness T in the Z-axis direction of the dielectric layer 5 (first dielectric layer) between the first and second inner electrodes 11, 12 and the third inner electrode 13. In this case, the withstand voltage performance in the vicinity of the opening 30 can be improved more than the interlayer withstand voltage performance of the dielectric layer 5.

[0068] The present invention is not limited to the above-described embodiments.

[0069] The shapes of the internal electrodes 11, 12 are not limited to those in the above-described embodiment. For example, the configuration shown in FIG. 8 may be adopted. In the example shown in FIG. 8, the first lead portion 28 and the second lead portion 29 may be narrower in the Y-axis direction than the first capacitor portion 10A and the second capacitor portion 10B. That is, the width W5 of the lead portions 28, 29 in the Y-axis direction is smaller than the overlap width W1 of the capacitor portions 10A, 10B. Although not particularly limited, the width W5 may be 90% or less of the overlap width W1. Note that the lower limit of the width W5 may be set within a range in which the area of ​​the lead portions 28, 29 is larger than that of the connecting portions 23, 24, as described above.

[0070] As described above, the first inner electrode 11 has the first lead portion 28 extending from the first capacitor portion 10A to the first terminal electrode 3, and the second inner electrode 12 has the second lead portion 29 extending from the second capacitor portion 10B to the second terminal electrode 4. The first lead portion 28 and the second lead portion 29 may be narrower in the Y-axis direction than the first capacitor portion 10A and the second capacitor portion 10B. The electric field concentration shown in FIGS. 5(a) and 5(b) may also occur near the edges of the first capacitor portion 10A and the second capacitor portion 10B on the end faces 2c and 2d sides. Therefore, by adopting the configuration shown in FIG. 8, the area of ​​the first and second inner electrodes 11 and 12 overlapping with the edge of the third inner electrode 13 can be reduced. This reduces the electric field intensity near the end faces 2c and 2d, thereby reducing cracks.

[0071] The structure shown in FIG. 9 may be employed. In the example shown in FIG. 9, a first relaxation layer 31 is formed inside the opening 30 to mitigate the formation of depressions in the element body 2. Furthermore, a second relaxation layer 32 is formed between the first internal electrode 11 and the second internal electrode 12 to mitigate the formation of depressions in the element body 2. The first relaxation layer 31 and the second relaxation layer 32 may be composed of a conductor layer or a second dielectric layer. The relaxation layers 31 and 32 as the second dielectric layer are dielectric layers different from the dielectric layer 5 (first dielectric layer) between the first and second internal electrodes 11 and 12 and the third internal electrode 13. The dielectric layers of the relaxation layers 31 and 32 have a strength that makes depressions less likely to form than the dielectric layer 5. The first relaxation layer 31 is separated from the third internal electrode 13. The second relaxation layer 32 is separated from the internal electrodes 11 and 12. The size of the relaxation layers 31, 32 relative to the opening 30 is not particularly limited, but for example, the area of ​​the relaxation layers 31, 32 may be 97% or less of the area of ​​the opening 30, and more preferably 80% or less. As shown in Fig. 10, a configuration in which the lead portions 28, 29 are narrower than the configuration in Fig. 9 may be adopted. However, only when a second dielectric layer is adopted, the first relaxation layer 31 and the second relaxation layer 32 may be formed so as to overlap the edges of the opening 30 and the internal electrodes 11, 12.

[0072] As described above, a first alleviating layer 31 that alleviates the formation of depressions in the element body 2 may be formed inside the opening 30. In this case, depressions can be reduced on the main surfaces 2a, 2b of the element body 2. The main surfaces 2a, 2b can be used as surfaces for suction with a suction tool when transporting the element body 2. Therefore, reducing depressions on the main surfaces 2a, 2b makes it easier to pick up the element body 2 by suction.

[0073] A second relaxation layer 32 that relaxes the formation of depressions in the element body 2 may be formed between the first internal electrode 11 and the second internal electrode 12. In this case, depressions can be reduced on the main surfaces 2a and 2b of the element body 2. This makes it easier to pick up the element body 2 by suction.

[0074] The first and second relaxation layers 31 and 32 may be composed of a conductor layer or a second dielectric layer. In this case, the conductor layer or the second dielectric layer sufficiently supports the inside of the opening 30, thereby reducing depressions on the main surfaces 2a and 2b of the element body 2. This makes it easier to pick up the element body 2 by suction.

[0075] The connecting portion does not have to be provided on both sides in the Y-axis direction; it is sufficient that one of the connecting portions 23 and 24 is provided. In the example shown in FIG. 11, the connecting portion 24 is omitted, and the third internal electrode 13 has only the connecting portion 23. The opening 30 opens on the positive side in the Y-axis direction. Furthermore, as shown in FIG. 12, a configuration in which relaxation layers 31 and 32 are provided in addition to the configuration in FIG. 11 may be adopted. As shown in FIG. 13, a configuration in which the lead portions 28 and 29 are narrower than the configuration in FIG. 12 may be adopted.

[0076] As shown in Fig. 14, a connecting portion 120 may be provided at a central position in the Y-axis direction. Lead-out portions 26, 27 are provided to extend from connecting portion 120 to both sides in the Y-axis direction. In this case, openings 30 are formed between lead-out portions 26, 27 and first region 21, and between lead-out portions 26, 27 and second region 22. As shown in Fig. 15, a configuration may be adopted in which lead-out portions 28, 29 are narrower than the configuration in Fig. 13.

[0077] The shape of the element body 2 is not limited to a rectangular parallelepiped, as long as it has a pair of opposing main surfaces and side surfaces extending between the main surfaces.

[0078] [Form 1] an element body having a first main surface and a second main surface facing in a first direction, a first end surface and a second end surface facing in a second direction perpendicular to the first direction, and a first side surface and a second side surface facing in a third direction perpendicular to the first direction and the second direction; a first terminal electrode formed on the first end surface; a second terminal electrode formed on the second end surface; an external connecting conductor formed on at least one of the first side surface and the second side surface; a first internal electrode provided within the element body and connected to the first terminal electrode at the first end surface; a second internal electrode provided within the element body, separated from the first internal electrode, and connected to the second terminal electrode at the second end surface; a third internal electrode provided within the element body, facing the first internal electrode and the second internal electrode in the first direction, and connected to the external connecting conductor, a first capacitor section formed by the first internal electrode and the third internal electrode facing each other, and a second capacitor section formed by the second internal electrode and the third internal electrode facing each other are connected in series; an electronic component, wherein the third internal electrode has an opening in a region between the first internal electrode and the second internal electrode when viewed from the first direction; [Form 2] The third internal electrode is a first region located closer to the first end face than the opening; a second region located closer to the second end face than the opening; a connecting portion connecting the first region and the second region, 2. The electronic component according to claim 1, wherein the connecting portion is formed on a side surface on which the external connecting conductor is provided. [Form 3] the external connecting conductor is formed on the first side surface and the second side surface, The electronic component of claim 2, wherein the third internal electrode has, as the connecting portion, a first connecting portion connected to the external connecting conductor at the first side surface and a second connecting portion connected to the external connecting conductor at the second side surface. [Form 4] An electronic component according to claim 2 or 3, wherein the width of the connecting portion of the third internal electrode in the third direction is 10% or more of the overlap width of the first capacitor portion and the second capacitor portion in the third direction. [Form 5] An electronic component according to any one of aspects 2 to 4, wherein the length of the connecting portion of the third internal electrode in the second direction is 100% or less of the overlap length of the first capacitor portion and the second capacitor portion in the second direction. [Form 6] An electronic component according to any one of embodiments 2 to 5, wherein the width of the connecting portion of the third internal electrode in the third direction is larger than the width of the lead portion connected to the external connecting conductor in the second direction. [Form 7] the first internal electrode has a first lead portion that is led from the first capacitor portion to the first terminal electrode, the second internal electrode has a second lead portion that is led from the second capacitor portion to the second terminal electrode, 7. The electronic component according to any one of aspects 1 to 6, wherein the first lead portion and the second lead portion are narrower in width in the third direction than the first capacitor portion and the second capacitor portion. [Form 8] The electronic component according to any one of the first to seventh embodiments, wherein the width of the opening in the second direction is at least twice the thickness in the first direction of the first dielectric layer between the first and second internal electrodes and the third internal electrode. [Form 9] 9. The electronic component according to any one of embodiments 1 to 8, wherein a first relaxation layer is formed inside the opening to relax the formation of a depression in the element body. [Form 10] The electronic component according to any one of the first to ninth embodiments, wherein a second relaxation layer is formed between the first internal electrode and the second internal electrode to relax the formation of a depression in the element body. [Form 11] The electronic component according to aspect 9 or 10, wherein the first relaxation layer and the second relaxation layer are formed of a conductor layer or a second dielectric layer. [Explanation of symbols]

[0079] 2...element body, 2a...first main surface, 2b...second main surface, 2c...first end face, 2d...second end face, 2e...first side surface, 2f...second side surface, 3...first terminal electrode, 4...second terminal electrode, 5...dielectric layer, 6A, 6B...external connecting conductor, 10A...first capacitor portion, 10B...second capacitor portion, 11...first internal electrode, 12...second internal electrode, 13...third internal electrode, 21...first region, 22...second region, 23...first connecting portion, 24...second connecting portion, 26, 27...lead portion, 28...first lead portion, 29...second lead portion, 30...opening, 31...first relaxation layer, 32...second relaxation layer, 100...electronic component.

Claims

1. an element body having a first main surface and a second main surface facing each other in a first direction, a first end surface and a second end surface facing each other in a second direction perpendicular to the first direction, and a first side surface and a second side surface facing each other in a third direction perpendicular to the first direction and the second direction; a first terminal electrode formed on the first end surface; a second terminal electrode formed on the second end surface; an external connecting conductor formed on at least one of the first side surface and the second side surface; a first internal electrode provided within the element body and connected to the first terminal electrode at the first end surface; a second internal electrode provided within the element body, separated from the first internal electrode, and connected to the second terminal electrode at the second end surface; a third internal electrode provided within the element body, facing the first internal electrode and the second internal electrode in the first direction, and connected to the external connecting conductor, a first capacitor section formed by the first internal electrode and the third internal electrode facing each other, and a second capacitor section formed by the second internal electrode and the third internal electrode facing each other are connected in series; the third internal electrode has an opening in a region between the first internal electrode and the second internal electrode when viewed from the first direction.

2. The third internal electrode is a first region located closer to the first end face than the opening; a second region located closer to the second end face than the opening; a connecting portion connecting the first region and the second region, The electronic component according to claim 1 , wherein the connecting portion is formed on a side surface on which the external connecting conductor is provided.

3. the external connecting conductor is formed on the first side surface and the second side surface, 3. The electronic component according to claim 2, wherein the third internal electrode has, as the connecting portion, a first connecting portion connected to the external connecting conductor at the first side surface and a second connecting portion connected to the external connecting conductor at the second side surface.

4. 3. The electronic component according to claim 2, wherein the width of the connecting portion of the third internal electrode in the third direction is 10% or more of the overlap width of the first capacitor portion and the second capacitor portion in the third direction.

5. 3. The electronic component according to claim 2, wherein the length of the connecting portion of the third internal electrode in the second direction is 100% or less of the overlap length of the first capacitor portion and the second capacitor portion in the second direction.

6. 3. The electronic component according to claim 2, wherein the width of the connecting portion of the third internal electrode in the third direction is larger than the width of the lead portion connected to the external connecting conductor in the second direction.

7. the first internal electrode has a first lead portion that is led from the first capacitor portion to the first terminal electrode, the second internal electrode has a second lead portion that is led from the second capacitor portion to the second terminal electrode, The electronic component according to claim 1 , wherein the first lead portion and the second lead portion are narrower in width in the third direction than the first capacitor portion and the second capacitor portion.

8. 2. The electronic component according to claim 1, wherein the width of the opening in the second direction is at least twice the thickness in the first direction of the first dielectric layer between the first and second internal electrodes and the third internal electrode.

9. 2. The electronic component according to claim 1, wherein a first relaxation layer is formed inside the opening to relax the formation of a depression in the element body.

10. 2. The electronic component according to claim 1, wherein a second relaxation layer is formed between the first internal electrode and the second internal electrode to relax the formation of a depression in the element body.

11. 11. The electronic component according to claim 9, wherein the first relaxation layer and the second relaxation layer are formed by a conductor layer or a second dielectric layer.

Images