Electronic components

Abstract

To provide an electronic component whose performance can be improved and which includes a plurality of capacitor parts connected in series.SOLUTION: A first internal electrode 11 faces neither a second internal electrode 12 nor a fourth internal electrode 14. The second internal electrode 12 faces neither the first internal electrode 11 nor a third internal electrode 13. That is to say, between a first capacitor part 10A on one side and a second capacitor part 10B on the other side, a coupling part CT (see FIG. 5C) connecting their internal electrodes does not exist. Therefore, as illustrated in FIG. 5B, a crack CR generated in the first capacitor part 10A on one side does not easily reach the second capacitor part 10B on the other side along the coupling part CT. Accordingly, the occurrence of short-circuit due to the crack CR entering both capacitor parts 10A and 10B can be suppressed.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to electronic components.

Background Art

[0002] As a conventional electronic component, one described in Patent Document 1 is known. This electronic component includes a body and a pair of terminal electrodes. Inside the body, internal electrodes are formed so that two sets of capacitor portions are configured. Inside the body, a first internal electrode and a second internal electrode arranged side by side so as to be separated from each other, and a third internal electrode facing these internal electrodes are formed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, it has been required to improve the performance of an electronic component having a plurality of capacitor portions connected in series inside the body.

[0005] The present invention has been made to solve such problems, and an object thereof is to provide an electronic component having a plurality of capacitor portions connected in series, which can improve performance.

Means for Solving the Problems

[0006] The electronic component according to the present invention comprises a body having a first main surface and a second main surface facing a first direction, a first end surface and a second end surface facing a second direction perpendicular to the first direction, and a first side surface and a second side surface facing a third direction perpendicular to the first and second directions, a first terminal electrode formed on the first end surface, a second terminal electrode formed on the second end surface, a first internal electrode provided inside the body and connected to the first terminal electrode at the first end surface, a second internal electrode provided inside the body and connected to the second terminal electrode at the second end surface, and a body The device comprises a third internal electrode provided inside and drawn out to a first side surface, and a fourth internal electrode provided inside the body and drawn out to a second side surface, wherein the third internal electrode and the fourth internal electrode are electrically connected via an external connecting conductor formed on at least the first side surface and the second side surface, and in a first direction, the first internal electrode faces the third internal electrode without facing the second and fourth internal electrodes, and in a first direction, the second internal electrode faces the fourth internal electrode without facing the first and third internal electrodes.

[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 fourth internal electrode. Here, the third internal electrode and the fourth internal electrode are electrically connected via an external connecting conductor formed on at least the first and second sides. With this configuration, the capacitor section composed of the first and third internal electrodes and the capacitor section composed of the second and fourth internal electrodes are connected in series via the external connecting conductor, thereby improving reliability. Furthermore, by using terminal electrodes and an external connecting conductor, it is possible to measure and inspect for short-circuit defects in each capacitor section. In addition, the first internal electrode does not face the second and fourth internal electrodes, and the second internal electrode does not face the first and third internal electrodes. That is, there is no connecting portion between one capacitor section and the other that connects their internal electrodes. Therefore, it is possible to suppress cracks occurring in one capacitor section from reaching the other capacitor section along the connecting portion. Therefore, it is possible to suppress cracks in both capacitor sections that cause a short circuit. Therefore, the performance of an electronic component having multiple capacitor sections connected in series can be improved.

[0008] The first and second internal electrodes may be arranged in the outermost layer of the stacked internal electrodes. In this case, the internal electrode closest to the first terminal electrode on each main surface becomes the first internal electrode with the same polarity as the first terminal electrode, and the internal electrode closest to the second terminal electrode becomes the second internal electrode with the same polarity as the second terminal electrode. Therefore, surface leakage between the outermost internal electrode and terminal electrodes of opposite polarity can be suppressed.

[0009] Viewed from a first direction, the base body may have gaps where internal electrodes are not formed. In this case, the propagation of a crack that occurs in one capacitor section to the other capacitor section can be suppressed.

[0010] The width of the gap in the second direction may be greater than or equal to the interlayer thickness of the base material. In this case, a voltage resistance greater than that of the interlayer voltage breakdown can be ensured in the gap.

[0011] The external connecting conductor extends to the first side surface, the second side surface, and the first main surface, and on the second main surface, one end of the external connecting conductor and the other end may be spaced apart in a third direction. In this case, an exposed portion is formed on the second main surface that is exposed to the external connecting conductor. Therefore, during mounting, the exposed portion can be sucked up with a device to transport the electronic component.

[0012] Viewed from a first direction, the external connecting conductor may be arranged so as not to overlap with the first internal electrode and the second internal electrode. In this case, the generation of stray capacitance between the external connecting conductor and the first internal electrode and the second internal electrode can be suppressed.

[0013] The first terminal electrode and the second terminal electrode may include a conductive resin layer. In this case, the reliability of the electronic component can be improved by mitigating the effects of stress caused by the bending of the mounting substrate.

[0014] The electronic component according to the present invention comprises a body having a first main surface and a second main surface facing a first direction, a first end surface and a second end surface facing a second direction perpendicular to the first direction, and a first side surface and a second side surface facing a third direction perpendicular to the first and second directions; a first terminal electrode formed on the first end surface; a second terminal electrode formed on the second end surface; a first internal electrode provided inside the body and connected to the first terminal electrode at the first end surface; a second internal electrode provided inside the body and connected to the second terminal electrode at the second end surface; a third internal electrode provided inside the body and extended out to the first side surface; a fourth internal electrode provided inside the body and extended out to the second side surface; a fifth internal electrode provided inside the body and positioned between the first internal electrode and the second internal electrode in the second direction and extended out to the first side surface; and a third internal electrode provided inside the body and positioned between the third internal electrode and the fourth internal electrode in the second direction. The device comprises a third internal electrode and a sixth internal electrode positioned between the third and sixth internal electrodes and drawn out to a second side surface, wherein the third and sixth internal electrodes are electrically connected via a first external connecting conductor formed on at least a first and a second side surface, and the fourth and fifth internal electrodes are electrically connected via a second external connecting conductor formed on at least a first and a second side surface, and in a first direction, the first internal electrode faces the third internal electrode without facing the second, fourth, fifth, and sixth internal electrodes, and in a first direction, the second internal electrode faces the fourth internal electrode without facing the first, third, fifth, and sixth internal electrodes, and in a first direction, the fifth internal electrode faces the sixth internal electrode without facing the first, second, third, and fourth internal electrodes.

[0015] In this electronic component, the first internal electrode connected to the first terminal electrode faces the third internal electrode, the second internal electrode connected to the second terminal electrode faces the fourth internal electrode, and the fifth internal electrode faces the sixth internal electrode. Here, the third internal electrode and the sixth internal electrode are electrically connected via a first external connecting conductor formed on at least the first and second sides. The fourth internal electrode and the fifth internal electrode are electrically connected via a second external connecting conductor formed on at least the first and second sides. With this configuration, the capacitor section composed of the first and third internal electrodes, the capacitor section composed of the fifth and sixth internal electrodes, and the capacitor section composed of the second and fourth internal electrodes are connected in series via the first and second external connecting conductors, thereby improving reliability. Furthermore, the first internal electrode does not face the second, fourth, fifth, and sixth internal electrodes. The second internal electrode does not face the first, third, fifth, and sixth internal electrodes. The fifth internal electrode does not face the first, second, third, and fourth internal electrodes. In other words, there is no connecting portion between adjacent capacitors that connects their internal electrodes. Therefore, it is possible to prevent a crack that occurs in one capacitor from traveling along the connecting portion to the other capacitor. Therefore, it is possible to prevent cracks from forming in both adjacent capacitors and causing a short circuit. As a result, the performance of an electronic component having multiple capacitors connected in series can be improved. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide an electronic component having multiple series-connected capacitor sections that can improve performance. [Brief explanation of the drawing]

[0017] [Figure 1] Figure 1(a) is a plan view of the electronic component according to this embodiment, and Figure 1(b) is a front view of the electronic component according to this embodiment. [Figure 2] FIG. 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(b). [Figure 3] FIG. 3(a) is a diagram showing the first internal electrode and the second internal electrode, FIG. 3(b) is a diagram showing the third internal electrode and the fourth internal electrode, and FIG. 3(c) is a diagram showing the state where the first internal electrode and the second internal electrode overlap with the third internal electrode and the fourth internal electrode. [Figure 4] FIG. 4(a) is a cross-sectional view showing an electronic component according to an embodiment, and FIG. 4(b) is a cross-sectional view showing an electronic component according to a comparative example. [Figure 5] FIGS. 5(a)(b) are cross-sectional views showing an electronic component according to an embodiment, and FIGS. 5(c)(d) are cross-sectional views showing an electronic component according to a comparative example. [Figure 6] A diagram showing an electronic component according to a modified example. [Figure 7] A diagram showing an electronic component according to a modified example. [Figure 8] A diagram showing an electronic component according to a modified example. [Figure 9] A diagram showing an electronic component according to a modified example. [Figure 10] A diagram showing an internal electrode of an electronic component according to a modified example.

MODE FOR CARRYING OUT THE INVENTION

[0018] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description, the same reference numerals will be used for the same elements or elements having the same function, and duplicate descriptions will be omitted.

[0019] First, the configuration of the electronic component 100 according to this embodiment will be described with reference to Figures 1 to 3. Figure 1(a) is a plan view of the electronic component according to this embodiment, and Figure 1(b) is a front view of the electronic component according to this embodiment. Figure 2(a) is a cross-sectional view along the line IIa-IIa shown in Figure 1(a), and Figure 2(b) is a cross-sectional view along the line IIb-IIb shown in Figure 1(b). Figure 3(a) shows the first and second internal electrodes, Figure 3(b) shows the third and fourth internal electrodes, and Figure 3(c) shows the first and second internal electrodes overlapping with the third and fourth internal electrodes. In Figure 3(c), the third and fourth internal electrodes are shown by dashed lines.

[0020] In the following explanation, an XYZ coordinate system may be set for the electronic component 100. The Z-axis direction (first direction) is the stacking direction in which the internal electrodes, described later, are stacked. The Z-axis direction is perpendicular to the surface of the circuit board on which the component is mounted during installation. The X-axis direction (second direction) is perpendicular to the Z-axis direction and parallel to the surface of the circuit board during installation. The X-axis direction also corresponds to the longitudinal direction in which the component 2 extends. The Y-axis direction (third direction) is perpendicular to the Z-axis and X-axis directions and is parallel to the surface of the circuit board and perpendicular to the X-axis direction during installation. In Figure 1, the upper side is the positive side of the Z-axis direction, and the lower side is the negative side of the Z-axis direction.

[0021] As shown in Figure 1, the electronic component 100 comprises a base body 2, a first terminal electrode 3, a second terminal electrode 4, and an external connecting conductor 6. As shown in Figure 2, the electronic component 100 includes a first internal electrode 11, a second internal electrode 12, a third internal electrode 13, and a fourth internal electrode 14 within the base body 2.

[0022] As shown in Figure 1, the base body 2 is a rectangular parallelepiped component extending along the longitudinal direction, the X-axis. The base 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 in the Z-axis direction, and the second main surface 2b is located on the positive side in the Z-axis direction. The first end surface 2c is located on the negative side in the X-axis direction, and the second end surface 2d is located on the positive side in the X-axis direction. The first side surface 2e is located on the negative side in the Y-axis direction, and the second side surface 2f is located on the positive side in the Y-axis direction. Of these, the first main surface 2a becomes the mounting surface that faces the mounting substrate during mounting.

[0023] The shape of base body 2 is not particularly limited, but here it has a rectangular prism shape in which the dimension in the X-axis direction is greater than the dimensions in the Z-axis and Y-axis directions. The rectangular prism shape includes a rectangular prism shape in which the corners and edges are chamfered, and a rectangular prism shape in which the corners and edges are rounded. For example, the length of base 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.

[0024] In the prototype 2, multiple dielectric layers (dielectric layer 5 shown in Figure 2(a)) are stacked in the Z-axis direction. Each dielectric layer is made of a sintered ceramic green sheet containing a dielectric material (such as a dielectric ceramic such as BaTiO3, Ba(Ti,Zr)O3, or (Ba,Ca)TiO3). In the actual prototype 2, each dielectric layer 5 is integrated to such an extent that the boundaries between each dielectric layer 5 are not visible.

[0025] The terminal electrodes 3 and 4 are provided so as to cover the end faces 2c and 2d of the base body 2. The terminal electrodes 3 and 4 are parts for electrically connecting other members to the electronic component 100. The terminal electrodes 3 and 4 have a main body portion 3a and 4a and a wrap-around portion 3b and 4b. The main body portions 3a and 4a are formed on the end faces 2c and 2d of the base body 2. The main body portions 3a and 4a are formed so as to cover the entire surface of the end faces 2c and 2d. The wrap-around portions 3b and 4b are formed so as to wrap around from the main body portions 3a and 4a to the main surfaces 2a and 2b and the side surfaces 2e and 2f. The wrap-around portion 3b is formed so as to cover a part of the main surfaces 2a and 2b and the side surfaces 2e and 2f near the first end face 2c. The wrap-around portion 4b is formed so as to cover a part of the main surfaces 2a and 2b and the side surfaces 2e and 2f near the second end face 2d.

[0026] The external connecting conductor 6 is a conductor that connects the third internal electrode 13 and the fourth internal electrode 14 on the outside of the main body 2. The external connecting conductor 6 is formed at approximately the center of the main body 2 in the direction of the X axis. The external connecting conductor 6 is formed spaced apart from the terminal electrodes 3 and 4 in the direction of the X axis. When viewed from the direction of the X axis, the external connecting conductor 6 is formed in an approximately U-shape that surrounds the main body 2 (see Figure 2(b)). The external connecting conductor 6 extends to the first side surface 2e, the second side surface 2f, and the first main surface 2a. The external connecting conductor 6 extends along the entire length in the Z axis direction on sides 2e and 2f. The external connecting conductor 6 extends along the entire length in the Y axis direction on the first main surface 2a. The external connecting conductor 6 is formed on a part of the second main surface 2b near side surface 2f and a part near side surface 2e. On the second main surface 2b, the negative end 6a and the positive end 6b of the external connecting conductor 6 are separated in the Y-axis direction. As a result, the region near the center of the second main surface 2b is exposed to the external connecting conductor 6.

[0027] The materials of the terminal electrodes 3 and 4 and the external connecting conductor 6 are not particularly limited, but may include copper. Furthermore, the terminal electrodes 3 and 4 and the external connecting conductor 6 may be copper-plated layers, or a Ni plating layer, Sn plating layer, etc., may be formed on these plated layers. Additionally, the terminal electrodes 3 and 4 may include a conductive resin layer made of a material such as silver.

[0028] As shown in Figure 2, the internal electrodes 11, 12, 13, and 14 are flat, plate-shaped conductor patterns extending parallel to the XY plane. Multiple internal electrodes 11, 12, 13, and 14 are formed in the Z-axis direction. The first internal electrode 11 is provided in the negative region in the X-axis direction within the base body 2 and is connected to the first terminal electrode 3 at its first end face 2c. The second internal electrode 12 is provided in the positive region in the X-axis direction within the base body 2 and is connected to the second terminal electrode 4 at its 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 have the same position in the Z-axis direction. In the state before lamination, the conductor patterns of the first internal electrode 11 and the second internal electrode 12 are formed on the ceramic green sheet of the dielectric layer 5.

[0029] The third internal electrode 13 is located in the negative region in the X-axis direction within the base body 2 and is drawn out to the first side surface 2e (see Figure 3(b)). The fourth internal electrode 14 is located in the positive region in the X-axis direction within the base body 2 and is drawn out to the second side surface 2f (see Figure 3(b)). The third internal electrode 13 and the fourth internal electrode 14 are arranged in the same plane. That is, the third internal electrode 13 and the fourth internal electrode 14 are formed on the same dielectric layer 5 and have the same position in the Z-axis direction. In the state before lamination, the conductor patterns of the third internal electrode 13 and the fourth internal electrode 14 are formed on the ceramic green sheet of the dielectric layer 5. The third internal electrode 13 and the fourth internal electrode 14 are electrically connected via an external connecting conductor 6.

[0030] As shown in Figure 3(c), in the Z-axis direction, the first internal electrode 11 faces the third internal electrode 13 without facing the second internal electrode 12 and the fourth internal electrode 14. In the Z-axis direction, the second internal electrode 12 faces the fourth internal electrode 14 without facing the first internal electrode 11 and the third internal electrode 13. The first internal electrode 11 and the second internal electrode 12 are positioned so as to be spaced apart from the second internal electrode 12 and the fourth internal electrode 14 with a gap in the X-axis direction.

[0031] Referring to Figure 3, an example of the specific shape of each internal electrode 11, 12, 13, and 14 will be described. As shown in Figure 3(a), the first internal electrode 11 extends from the first end face 2c toward the center of the body 2 toward the positive side in the X-axis direction. The inner edge 11a of the first internal electrode 11 in the X-axis direction (positive side in the X-axis direction) is inclined toward the negative side in the X-axis direction as it moves from the negative side in the Y-axis direction toward the positive side. The negative side edge of the first internal electrode 11 in the X-axis direction is exposed from the first end face 2c and connected to the first terminal electrode 3. The negative side edge of the first internal electrode 11 in the Y-axis direction is spaced apart from and parallel to the first side surface 2e. The positive side edge of the first internal electrode 11 in the Y-axis direction is spaced apart from and parallel to the second side surface 2f.

[0032] The second internal electrode 12 extends from the second end face 2d toward the center of the body 2 towards the negative side in the X-axis direction. The inner edge 12a of the second internal electrode 12 in the X-axis direction (negative side in the X-axis direction) is inclined toward the negative side in the X-axis direction as it moves from the negative side in the Y-axis direction toward the positive side. The edge 12a of the second internal electrode 12 is parallel to the edge 11a of the first internal electrode 11, spaced apart in the X-axis direction. The positive side edge of the second internal electrode 12 in the X-axis direction is exposed from the second end face 2d and connected to the second terminal electrode 4. The negative side edge of the second internal electrode 12 in the Y-axis direction is parallel to the first side surface 2e, spaced apart. The positive side edge of the second internal electrode 12 in the Y-axis direction is parallel to the second side surface 2f, spaced apart. The edges of the second internal electrode 12 in the Y-axis direction are positioned at the same location in the Y-axis direction as the edges of the first internal electrode 11 in the Y-axis direction.

[0033] As shown in Figure 3(b), the third internal electrode 13 comprises a main body portion 21 and an extension portion 22. The main body portion 21 has an outer shape similar to that of the first internal electrode 11 when viewed from the Z-axis direction and is positioned to overlap with the first internal electrode 11. Therefore, the positive edge portion 21a of the main body portion 21 in the X-axis direction has the same shape as the edge portion 11a of the first internal electrode 11. The negative edge portion of the main body portion 21 in the X-axis direction is spaced apart from the first end face 2c toward the positive side in the X-axis direction. The extension portion 22 extends from the main body portion 21 toward the negative side in the Y-axis direction and is exposed on the first side surface 2e, thereby connecting to the external connecting conductor 6. The extension portion 22 extends toward the negative side in the Y-axis direction in a state that is inclined to be continuous with the edge portion 21a of the main body portion 21.

[0034] The fourth internal electrode 14 comprises a main body portion 23 and an extension portion 24. The main body portion 23 has an outer shape similar to that of the second internal electrode 12 when viewed from the Z-axis direction and is positioned to overlap with the second internal electrode 12. Therefore, the negative edge portion 23a of the main body portion 23 in the X-axis direction has the same shape as the edge portion 12a of the second internal electrode 12. The positive edge portion of the main body portion 23 in the X-axis direction is spaced apart from the second end face 2d in the positive direction of the X-axis direction. The extension portion 24 extends from the main body portion 23 in the positive direction of the Y-axis direction and is exposed at the second side surface 2f, thereby connecting to the external connecting conductor 6. The extension portion 24 extends in the positive direction of the Y-axis direction in a state that is inclined to be continuous with the edge portion 23a of the main body portion 23.

[0035] As described above, as shown in Figure 2(a), a capacitor section 10A is formed inside the base body 2 in the negative region in the X-axis direction, and a capacitor section 10B is formed in the positive region in the X-axis direction. The capacitor section 10A is formed by alternately stacking a plurality of first internal electrodes 11 and a plurality of third internal electrodes 13. The capacitor section 10B is formed by alternately stacking a plurality of second internal electrodes 12 and a plurality of fourth internal electrodes 14.

[0036] Viewed from the Z-axis direction, the element 2 has a gap 25 where internal electrodes 11, 12, 13, and 14 are not formed. The gap 25 is formed between capacitor section 10A and capacitor section 10B. Specifically, the gap 25 is formed by the continuity of 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 21a of the third internal electrode 13 and the edge 23a of the fourth internal electrode 14 in the Z-axis direction. The width of the gap 25 in the X-axis direction is greater than or equal to the interlayer thickness of the element 2. The interlayer thickness is the thickness of one dielectric layer 5 and is defined by the thickness between internal electrodes 11 and 13, and the thickness between internal electrodes 12 and 14. The interlayer thickness is set to approximately 1 to 50 μm. In contrast, the width of the gap 25 is set to approximately 1 to 1000 μm.

[0037] The first internal electrode 11 and the second internal electrode 12 are positioned in the outermost layer of the stacked internal electrodes. That is, among the internal electrodes arranged inside the base body 2, the first internal electrode 11 and the second internal electrode 12 are positioned furthest to the positive side in the Z-axis direction, and the first internal electrode 11 and the second internal electrode 12 are positioned furthest to the negative side in the Z-axis direction.

[0038] Referring to Figure 4(a), the polarity of capacitor sections 10A and 10B will be explained. As shown in Figure 4(a), when the electronic component 100 is mounted, the first terminal electrode 3 is positive polarity and the second terminal electrode 4 is negative polarity. The third internal electrode 13 and the fourth internal electrode 14 are connected via the external connecting conductor 6 and are therefore at the same potential. In this case, in capacitor section 10A, the first internal electrode 11 connected to the first terminal electrode 3 is positive polarity and the third internal electrode 13 is negative polarity. On the other hand, in capacitor section 10B, the fourth internal electrode 14 connected to the second terminal electrode 4 is positive polarity and the second internal electrode 12 is negative polarity. Thus, capacitor sections 10A and 10B exist in a series connection between the first terminal electrode 3 and the second terminal electrode 4.

[0039] Next, the operation and effects of the electronic component 100 according to this embodiment will be described.

[0040] First, let's describe the electronic component relating to the comparative example. Figure 5(c) is a schematic cross-sectional view showing the internal structure of the base body 2 of the electronic component 200 relating to the comparative example. The electronic component 200 has an internal electrode 115 that simultaneously forms the first capacitor portion 10A and the second capacitor portion 10B, instead of the third internal electrode 13 and the fourth internal electrode 14 connected by an external connecting conductor in this embodiment. The internal electrode 115 extends so as to face both the first internal electrode 11 and the second internal electrode 12. Therefore, no gap portion 25 is formed in the base body 2, and the electrode 115 has a connecting portion CT that connects the first capacitor portion 10A and the second capacitor portion 10B. In such an electronic component 200, since there is no external connecting conductor, it is not possible to detect a short circuit if one of the first capacitor portion 10A or the second capacitor portion 10B is short-circuited. Also, if a crack CR occurs in one of the first capacitor portions 10A, the crack CR may reach the other second capacitor portion 10B along the connecting portion CT. In this case, a short circuit in one of the first capacitor sections 10A causes both capacitor sections 10A and 10B to short circuit.

[0041] Figure 5(d) is a schematic cross-sectional view of an electronic component 250 relating to a comparative example having the configuration disclosed in Japanese Patent Application Publication No. 2019-46876. The electronic component 250 has capacitor sections 10A and 10B in the stacking direction. In the electronic component 250, it is possible to detect individual short circuits in each capacitor section 10A and 10B, but because the interlayer distance is short, there is a possibility that both capacitor sections 10A and 10B will short circuit due to the difference in the occurrence of a deflection crack CR.

[0042] Figure 4(b) is a schematic cross-sectional view showing an electronic component 150 according to a comparative example. In the electronic component 150, the third internal electrode 13 and the fourth internal electrode 14 are not formed on the same plane, and the first internal electrode 11 and the second internal electrode 12 are not formed on the same plane. In the second capacitor portion 10B, the fourth internal electrode is the outermost layer. In this case, surface leakage may occur in the second capacitor portion 10B between the outermost fourth internal electrode (positive electrode) and the second terminal electrode 4 (negative electrode) of opposite polarity.

[0043] 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 third internal electrode 13, and the second internal electrode 12 connected to the second terminal electrode 4 faces the fourth internal electrode 14. Here, the third internal electrode 13 and the fourth internal electrode 14 are electrically connected via an external connecting conductor 6 formed on at least the first side surface 2e and the second side surface 2f. With this configuration, the first capacitor section 10A, composed of the first internal electrode 11 and the third internal electrode 13, and the second capacitor section 10B, composed of the second internal electrode 12 and the fourth internal electrode 14, are connected in series via the external connecting conductor 6, thereby improving reliability. For example, as shown in Figure 5(a), even if a crack CR occurs in the first capacitor section 10A and causes a short circuit, the second capacitor section 10B can still be used. Furthermore, by using the first terminal electrode 3 and the external connecting conductor 6, it is possible to measure and inspect for short-circuit defects in the first capacitor section 10A, and by using the second terminal electrode 4 and the external connecting conductor 6, it is possible to measure and inspect for short-circuit defects in the second capacitor section 10B.

[0044] Furthermore, the first internal electrode 11 does not face the second internal electrode 12 and the fourth internal electrode 14, and the second internal electrode 12 does not face the first internal electrode 11 and the third internal electrode 13. In other words, there is no connecting portion CT (see Figure 5(c)) between the first capacitor section 10A and the second capacitor section 10B that connects their internal electrodes. Therefore, as shown in Figure 5(b), it is possible to prevent a crack CR generated in the first capacitor section 10A from reaching the second capacitor section 10B along the connecting portion CT. Therefore, it is possible to prevent cracks CR from entering both capacitor sections 10A and 10B and causing a short circuit.

[0045] Here, the first internal electrode 11 and the second internal electrode 12 are arranged in the outermost layer of the stacked internal electrodes. In this case, as shown in Figure 4(a), the internal electrode closest to the first terminal electrode 3 on each main surface is the first internal electrode 11, which has the same polarity as the first terminal electrode 3, and the internal electrode closest to the second terminal electrode 4 is the second internal electrode 12, which has the same polarity as the second terminal electrode 4. Therefore, surface leakage between the outermost internal electrode and terminal electrodes of opposite polarity can be suppressed. As a result, the performance of an electronic component having multiple capacitor sections connected in series can be improved.

[0046] When viewed from the Z-axis direction, the element 2 may have a gap 25 where no internal electrodes are formed. In this case, the propagation of a crack that occurs in one of the first capacitor portions 10A to the other second capacitor portion 10B can be suppressed.

[0047] The width of the gap 25 in the X-axis direction may be greater than or equal to the interlayer thickness of the base body 2. In this case, the gap 25 can ensure withstand voltage greater than that of voltage breakdown between layers. Furthermore, the width of the gap 25 in the X-axis direction is not particularly limited and may be any size. For example, the width of the gap 25 in the X-axis direction may be 1% or more of the dimension of the base body 2 in the Y-axis direction.

[0048] The external connecting conductor 6 extends to the first side surface 2e, the second side surface 2f, and the first main surface 2a, and on the second main surface 2b, one end 6a and the other end 6b of the external connecting conductor 6 may be spaced apart in the Y-axis direction. In this case, an exposed portion 46 (see Figure 1(a)) is formed on the second main surface 2b that is exposed to the external connecting conductor 6. Therefore, during mounting, the exposed portion 46 can be sucked up with a device to transport the electronic component 100.

[0049] The first terminal electrode 3 and the second terminal electrode 4 may include a conductive resin layer. In this case, the reliability of the electronic component 100 can be improved by mitigating the effects of stress caused by the bending of the mounting substrate.

[0050] The present invention is not limited to the embodiments described above.

[0051] The configuration of the external connecting conductor 6 is not limited to the configuration shown in Figure 2(b), and for example, the configuration shown in Figure 6 may be adopted. The external connecting conductor 6 shown in Figure 6 has a structure that surrounds the element 2 around its entire circumference. Specifically, the external connecting conductor 6 extends along the entire length of the second main surface 2b in the Y-axis direction such that an exposed portion 46 as shown in Figure 2(b) is not formed on the second main surface 2b.

[0052] The shape of the internal electrodes is not limited to the embodiments described above. For example, the structure shown in Figure 7 may be adopted. In the example shown in Figure 7, the edge 11a of the first internal electrode 11 and the edge 12a of the second internal electrode 12 extend parallel to the Y-axis direction. The lead-out portion 22 of the third internal electrode 13 and the lead-out portion 24 of the fourth internal electrode 14 extend from the inner ends of the main body portions 21 and 23 in the X-axis direction so as to be inclined with respect to the Y-axis direction. In this case, the lead-out portions 22 and 24 are positioned in the gap between the first internal electrode 11 and the second internal electrode 12.

[0053] In this case, as shown in Figure 7(a), the external connecting conductor 6 may be arranged so as not to overlap with the first internal electrode 11 and the second internal electrode 12 when viewed from the Z-axis direction. That is, the width of the external connecting conductor 6 in the X-axis direction is less than or equal to the gap between the edges 11a and 12a. In this case, the generation of stray capacitance between the external connecting conductor 6 and the first internal electrode 11 and the second internal electrode 12 can be suppressed. For example, as shown in Figure 7(b), if the width of the external connecting conductor 6 in the X-axis direction is greater than the gap between the edges 11a and 12a, stray capacitance may be generated in the part where the external connecting conductor 6 and the internal electrodes 11 and 12 overlap. However, the configuration in Figure 7(b) may also be adopted.

[0054] Alternatively, the configuration shown in Figure 8 may be adopted. As shown in Figure 8(a), the edges 11a, 12a, 21a, and 23a of the internal electrodes 11, 12, 13, and 14 may have a stepped shape. Also, as shown in Figure 8(b), the edges 11a, 12a, 21a, and 23a of the internal electrodes 11, 12, 13, and 14 may all have a shape that extends parallel to the Y-axis direction. According to the configuration shown in Figure 8, the overlapping area of ​​the internal electrodes can be increased, so the capacitance can be increased.

[0055] Alternatively, an electronic component 300 as shown in Figure 9 may be used. The electronic component 300 has a fifth internal electrode 15 and a sixth internal electrode between the internal electrodes 11 and 13 and the internal electrodes 12 and 14. The fifth internal electrode 15 is formed in the same plane as the internal electrodes 11 and 12 (see Figure 10(a)). The sixth internal electrode 16 is formed in the same plane as the internal electrodes 13 and 14 (see Figure 10(b)). The fifth internal electrode has a main body portion 26 and a lead portion 27 that is drawn out to the side surface 2e. The sixth internal electrode has a main body portion 28 and a lead portion 29 that is drawn out to the side surface 2f. The main body portion 26 of the fifth internal electrode 15 and the main body portion 28 of the sixth internal electrode 16 face each other in the Z-axis direction and do not face each other with respect to the other internal electrodes. The lead portion 22 of the third internal electrode 13 and the lead portion 29 of the sixth internal electrode 16 are connected via a first external connecting conductor 6A. The lead portion 24 of the fourth internal electrode 14 and the lead portion 27 of the fifth internal electrode 15 are connected via the second external connecting conductor 6B. As a result, as shown in Figure 9(a), the first capacitor portion 10A, the third capacitor portion 10C, and the second capacitor portion 10B are formed in the order from the negative side to the positive side in the X-axis direction. A gap portion 25A is formed between the first capacitor portion 10A and the third capacitor portion 10C. A gap portion 25B is formed between the third capacitor portion 10C and the second capacitor portion 10B.

[0056] As described above, in the electronic component 300, the first internal electrode 11 connected to the first terminal electrode 3 faces the third internal electrode 13, the second internal electrode 12 connected to the second terminal electrode 4 faces the fourth internal electrode 14, and the fifth internal electrode 15 faces the sixth internal electrode 16. Here, the third internal electrode 13 and the sixth internal electrode 16 are electrically connected via a first external connecting conductor 6A formed on at least the first side surface 2e and the second side surface 2f. Also, the fourth internal electrode 14 and the fifth internal electrode 15 are electrically connected via a second external connecting conductor 6B formed on at least the first side surface 2e and the second side surface 2f. With this configuration, the first capacitor section 10A, composed of the first internal electrode 11 and the third internal electrode 13, the third capacitor section 10C, composed of the fifth internal electrode 15 and the sixth internal electrode 16, and the second capacitor section 10B, composed of the second internal electrode 12 and the fourth internal electrode 14, are connected in series via the first external connecting conductor 6A and the second external connecting conductor 6B, thereby improving reliability. Furthermore, the first internal electrode 11 does not face the second internal electrode 12, the fourth internal electrode 14, the fifth internal electrode 15, and the sixth internal electrode 16. The second internal electrode 12 does not face the first internal electrode 11, the third internal electrode 13, the fifth internal electrode 15, and the sixth internal electrode 16. The fifth internal electrode 15 does not face the first internal electrode 11, the second internal electrode 12, the third internal electrode 13, and the fourth internal electrode 14. In other words, there is no connecting portion between adjacent capacitor sections that links their internal electrodes. Therefore, a crack occurring in one capacitor section can be prevented from traveling along the connecting portion to the other capacitor section. This prevents cracks from forming in both adjacent capacitor sections and causing a short circuit. As a result, the performance of an electronic component having multiple capacitor sections connected in series can be improved.

[0057] The shape of the base body 2 is not limited to a rectangular parallelepiped shape, as long as it has a pair of opposing main faces and a side surface extending between the main faces.

[0058] [Form 1] A body having a first main surface and a second main surface facing a first direction, a first end surface and a second end surface facing a second direction perpendicular to the first direction, and a first side surface and a second side surface facing a third direction perpendicular to the first and second directions, A first terminal electrode formed on the first end face, A second terminal electrode formed on the second end face, A first internal electrode is provided within the body and is connected to the first terminal electrode at the first end face, A second internal electrode is provided within the aforementioned body and is connected to the second terminal electrode at the second end face, A third internal electrode is provided within the aforementioned body and is drawn out to the first side surface, The body comprises a fourth internal electrode provided within the body and extending out to the second side, The third internal electrode and the fourth internal electrode are electrically connected via an external connecting conductor formed on at least the first side and the second side. In the first direction, the first internal electrode faces the third internal electrode without facing the second internal electrode and the fourth internal electrode. An electronic component wherein, in the first direction, the second internal electrode faces the fourth internal electrode without facing the first internal electrode or the third internal electrode. [Form 2] The electronic component according to claim 1, wherein the first internal electrode and the second internal electrode are arranged in the outermost layer of the stacked internal electrodes. [Form 3] The electronic component according to embodiment 1 or 2, wherein, when viewed from the first direction, the body has a gap in which no internal electrodes are formed. [Form 4] The electronic component according to Embodiment 2, wherein the width of the gap in the second direction is greater than or equal to the interlayer thickness of the base body. [Form 5] The electronic component according to any one of embodiments 1 to 4, wherein the external connecting conductor extends to the first side surface, the second side surface, and the first main surface, and on the second main surface, one end of the external connecting conductor and the other end are spaced apart in the third direction. [Form 6] The electronic component according to any one of embodiments 1 to 5, wherein, when viewed from the first direction, the external connecting conductor is arranged so as not to overlap with the first internal electrode and the second internal electrode. [Form 7] The electronic component according to any one of embodiments 1 to 6, wherein the first terminal electrode and the second terminal electrode include a conductive resin layer. [Form 8] A body having a first main surface and a second main surface facing a first direction, a first end surface and a second end surface facing a second direction perpendicular to the first direction, and a first side surface and a second side surface facing a third direction perpendicular to the first and second directions, A first terminal electrode formed on the first end face, A second terminal electrode formed on the second end face, A first internal electrode is provided within the body and is connected to the first terminal electrode at the first end face, A second internal electrode is provided within the aforementioned body and is connected to the second terminal electrode at the second end face, A third internal electrode is provided within the aforementioned body and is drawn out to the first side surface, A fourth internal electrode is provided within the aforementioned body and is drawn out to the second side surface, A fifth internal electrode is provided within the body, positioned between the first internal electrode and the second internal electrode in the second direction, and drawn out to the first side surface, The substrate comprises a sixth internal electrode provided within the substrate, positioned between the third internal electrode and the fourth internal electrode in the second direction, and drawn out to the second side surface, The third internal electrode and the sixth internal electrode are electrically connected via a first external connecting conductor formed on at least the first side and the second side. The fourth internal electrode and the fifth internal electrode are electrically connected via a second external connecting conductor formed on at least the first side and the second side. In the first direction, the first internal electrode faces the third internal electrode without facing the second internal electrode, the fourth internal electrode, the fifth internal electrode, and the sixth internal electrode. In the first direction, the second internal electrode faces the fourth internal electrode, without facing the first internal electrode, the third internal electrode, the fifth internal electrode, and the sixth internal electrode. An electronic component wherein, in the first direction, the fifth internal electrode faces the sixth internal electrode without facing the first internal electrode, the second internal electrode, the third internal electrode, and the fourth internal electrode. [Explanation of Symbols]

[0059] 2...Primary body, 2a...First main surface, 2b...Second main surface, 2c...First end surface, 2d...Second end surface, 2e...First side surface, 2f...Second side surface, 3...First terminal electrode, 4...Second terminal electrode, 6...External connecting conductor, 6A...First external connecting conductor, 6B...Second external connecting conductor, 11...First internal electrode, 12...Second internal electrode, 13...Third internal electrode, 14...Fourth internal electrode, 15...Fifth internal electrode, 16...Sixth internal electrode, 100, 300...Electronic components.

Claims

1. A body having a first main surface and a second main surface facing a first direction, a first end surface and a second end surface facing a second direction perpendicular to the first direction, and a first side surface and a second side surface facing a third direction perpendicular to the first direction and the second direction, The first terminal electrode formed on the first end face, The second terminal electrode formed on the second end face, A first internal electrode is provided within the body and is connected to the first terminal electrode at the first end face, A second internal electrode is provided within the body and is connected to the second terminal electrode at the second end face, A third internal electrode is provided within the body and is drawn out to the first side surface, The substrate comprises a fourth internal electrode provided within the substrate and extending out to the second side surface, The third internal electrode and the fourth internal electrode are electrically connected via an external connecting conductor formed on at least the first side and the second side. In the first direction, the first internal electrode faces the third internal electrode without facing the second internal electrode and the fourth internal electrode. In the first direction, the second internal electrode faces the fourth internal electrode without facing the first internal electrode and the third internal electrode. Viewed from the first direction, the base body has a gap where no internal electrodes are formed, The third internal electrode and the fourth internal electrode are in the same position in the first direction. The third internal electrode comprises a main body portion arranged to overlap the first internal electrode in the first direction, and an extension portion extending from the main body portion and exposed only on the first side surface. The fourth internal electrode comprises a main body portion arranged to overlap the second internal electrode in the first direction, and an extension portion extending from the main body portion and exposed only on the second side surface. An electronic component in which the extraction position on the first side surface of the extraction portion of the third internal electrode and the extraction position on the second side surface of the extraction portion of the fourth internal electrode are opposite positions in the third direction.

2. The electronic component according to claim 1, wherein the first internal electrode and the second internal electrode are arranged in the outermost layer of the stacked internal electrodes.

3. The electronic component according to claim 1, wherein the width of the gap in the second direction is greater than or equal to the interlayer thickness of the base body.

4. The electronic component according to claim 1, wherein the external connecting conductor extends to the first side surface, the second side surface, and the first main surface, and on the second main surface, one end of the external connecting conductor and the other end are spaced apart in the third direction.

5. The electronic component according to claim 1, wherein, when viewed from the first direction, the external connecting conductor is arranged so as not to overlap with the first internal electrode and the second internal electrode.

6. The electronic component according to claim 1, wherein the first terminal electrode and the second terminal electrode include a conductive resin layer.

7. The lead portion of the third internal electrode extends toward the first side in the third direction, in an inclined state so as to be continuous with the edge of the main body portion of the third internal electrode, The electronic component according to claim 1 or 2, wherein the lead portion of the fourth internal electrode extends toward the second side in the third direction, in a state inclined to be continuous with the edge of the main body portion of the fourth internal electrode.

8. When viewed from the first direction, the inner edge of the main body of the third internal electrode in the second direction, and the inner edge of the main body of the fourth internal electrode in the second direction, have a stepped shape. The electronic component according to claim 1 or 2, wherein the lead portion of the third internal electrode and the lead portion of the fourth internal electrode extend along the third direction.

9. A body having a first main surface and a second main surface facing a first direction, a first end surface and a second end surface facing a second direction perpendicular to the first direction, and a first side surface and a second side surface facing a third direction perpendicular to the first direction and the second direction, The first terminal electrode formed on the first end face, The second terminal electrode formed on the second end face, A first internal electrode is provided within the body and is connected to the first terminal electrode at the first end face, A second internal electrode is provided within the body and is connected to the second terminal electrode at the second end face, A third internal electrode is provided within the body and is drawn out to the first side surface, The substrate comprises a fourth internal electrode provided within the substrate and extending out to the second side surface, The third internal electrode and the fourth internal electrode are electrically connected via an external connecting conductor formed on at least the first side and the second side. In the first direction, the first internal electrode faces the third internal electrode without facing the second internal electrode and the fourth internal electrode. In the first direction, the second internal electrode faces the fourth internal electrode without facing the first internal electrode and the third internal electrode. An electronic component in which, when viewed from the first direction, the external connecting conductor is arranged so as not to overlap with the first internal electrode and the second internal electrode.

10. A body having a first main surface and a second main surface facing a first direction, a first end surface and a second end surface facing a second direction perpendicular to the first direction, and a first side surface and a second side surface facing a third direction perpendicular to the first direction and the second direction, The first terminal electrode formed on the first end face, The second terminal electrode formed on the second end face, A first internal electrode is provided within the body and is connected to the first terminal electrode at the first end face, A second internal electrode is provided within the body and is connected to the second terminal electrode at the second end face, A third internal electrode is provided within the body and is drawn out to the first side surface, A fourth internal electrode is provided within the aforementioned body and is drawn out to the second side surface, A fifth internal electrode is provided within the body, positioned between the first internal electrode and the second internal electrode in the second direction, and drawn out to the first side surface, The substrate comprises a sixth internal electrode provided within the substrate, positioned between the third internal electrode and the fourth internal electrode in the second direction, and extending out to the second side surface, The third internal electrode and the sixth internal electrode are electrically connected via a first external connecting conductor formed on at least the first side surface and the second side surface. The fourth internal electrode and the fifth internal electrode are electrically connected via a second external connecting conductor formed on at least the first side surface and the second side surface. In the first direction, the first internal electrode faces the third internal electrode, without facing the second internal electrode, the fourth internal electrode, the fifth internal electrode, and the sixth internal electrode. In the first direction, the second internal electrode faces the fourth internal electrode, but does not face the first internal electrode, the third internal electrode, the fifth internal electrode, and the sixth internal electrode. In the first direction, the fifth internal electrode faces the sixth internal electrode without facing the first internal electrode, the second internal electrode, the third internal electrode, and the fourth internal electrode. Viewed from the first direction, the base body has a gap where no internal electrodes are formed, The third internal electrode and the fourth internal electrode are in the same position in the first direction. The third internal electrode comprises a main body portion arranged to overlap the first internal electrode in the first direction, and an extension portion extending from the main body portion and exposed only on the first side surface. The fourth internal electrode comprises a main body portion arranged to overlap the second internal electrode in the first direction, and an extension portion extending from the main body portion and exposed only on the second side surface. The fifth internal electrode comprises a main body portion arranged to overlap with the sixth internal electrode in the first direction, and an extension portion extending from the main body portion and exposed only on the first side surface. The sixth internal electrode comprises a main body portion arranged to overlap with the fifth internal electrode in the first direction, and an extension portion extending from the main body portion and exposed only on the second side surface. The extraction position of the third internal electrode on the first side surface of the extraction portion and the extraction position of the sixth internal electrode on the second side surface of the extraction portion are opposite positions in the third direction. An electronic component in which the extraction position on the second side surface of the extraction portion of the fourth internal electrode and the extraction position on the first side surface of the extraction portion of the fifth internal electrode are opposite positions in the third direction.

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