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electronic components

A technology for electronic components and outer layers, applied to fixed capacitance components, multilayer capacitors, fixed capacitor electrodes, etc., can solve the problems of smaller effective area and smaller electrostatic capacitance, and achieve improved characteristics and expanded effective area Effect

Active Publication Date: 2021-12-31
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the multilayer ceramic capacitor described in Patent Document 1, since the ground internal electrode has portions drawn out to both side surfaces of the laminate, the effective area, which is a region where the signal internal electrode and the ground internal electrode overlap in the stacking direction, becomes small, and correspondingly, there is a problem that the electrostatic capacitance becomes small

Method used

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Examples

Experimental program
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Deformed example 1

[0132] In multilayer ceramic capacitor 10 according to one embodiment described above, first external electrode 1 is provided on first end surface 15a and second end surface 15b, and second external electrode 2 is provided on first side surface 17a and second side surface 17b. However, the positions where the first external electrode 1 and the second external electrode 2 are provided are not limited to the above-mentioned positions, for example, they may be provided only on the first side surface 17 a and the second side surface 17 b of the laminated body 11 .

[0133] Figure 8 It is a sectional view of a multilayer ceramic capacitor 10A having a structure in which two first external electrodes 1 are provided on a first side surface 17a of a laminate 11 and two second external electrodes 2 are provided on a second side surface 17b, Figure 8 (a) is a cross-sectional view when cut along a plane including the first internal electrode 13a, Figure 8 (b) is a cross-sectional vie...

Deformed example 2

[0138] Figure 9 It is a cross-sectional view of a multilayer ceramic capacitor 10B having a structure in which two first external electrodes 1 and two second external electrodes 2 are respectively provided on the first side 17 a and the second side 17 b of the laminate 11 , Figure 9 (a) is a cross-sectional view when cut along a plane including the first internal electrode 13a, Figure 9 (b) is a cross-sectional view taken along a plane including the second internal electrode 13b. Also, while in Figure 9 In the figure, the margin portion 23 is shown as one layer, but a structure including a plurality of margin layers is also possible.

[0139] Such as Figure 9 As shown in (a) and (b), the first external electrode 1 has a surface portion 1 a located on the surface of the laminate 11 and a penetrating portion 1 b penetrating through the margin 23 , and the second external electrode 2 has a surface portion 1 b located on the laminate 11 . The surface part 2 a of the surfa...

Deformed example 3

[0144] Figure 10 Multilayer ceramic capacitor 10C having a structure in which a plurality of first external electrodes 1 and second external electrodes 2 are alternately provided on first side surface 17a, second side surface 17b, first end surface 15a, and second end surface 15b of laminated body 11. sectional view of Figure 10(a) is a cross-sectional view when cut along a plane including the first internal electrode 13a, Figure 10 (b) is a cross-sectional view taken along a plane including the second internal electrode 13b. Also, while in Figure 10 In the figure, the margin portion 23 is shown as one layer, but a structure including a plurality of margin layers is also possible.

[0145] Three first external electrodes 1 and two second external electrodes 2 are alternately provided on the first side face 17 a, and three second external electrodes 2 and two first external electrodes 1 are alternately provided on the second side face 17 b. In addition, one first extern...

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Abstract

In the electronic component having the external electrodes on the side surfaces of the laminate, the effective area is enlarged as the area where the internal electrodes overlap in the stacking direction. The electronic component (multilayer ceramic capacitor (10)) includes: a laminated body (11), a plurality of internal electrodes (13a, 13b) and dielectric layers alternately laminated; and an external electrode (2), electrically connected to the internal electrode (13b). connect. The laminated body (11) has: a first main surface and a second main surface facing each other in a lamination direction; a first side surface and a second side surface facing each other in a width direction perpendicular to the lamination direction; and a first end surface and a second end surface. The end faces face each other in the longitudinal direction perpendicular to the stacking direction and the width direction. The external electrode (2) is provided on at least one of the first side (17a) and the second side (17b) of the laminate (11), and is closer to the internal side of the laminate (11) than the at least one side. (13b) Direct connection.

Description

technical field [0001] The present invention relates to electronic components. Background technique [0002] Conventionally, there is known an electronic component comprising: a laminate in which a plurality of internal electrodes and dielectric layers are alternately laminated; and external electrodes electrically connected to the internal electrodes and formed on the surface of the laminate. [0003] As one of such electronic components, Patent Document 1 describes a laminated ceramic capacitor in which external electrodes are provided on both end surfaces of a laminate and external terminals are provided on both side surfaces. In this multilayer ceramic capacitor, signal internal electrodes drawn out to both end surfaces of the laminate and ground internal electrodes drawn out to both side surfaces of the laminate are alternately laminated with dielectric layers interposed therebetween. Furthermore, external electrodes electrically connected to the signal internal electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/005H01G4/232H01G4/30H01G4/12
CPCH01G4/012H01G4/12H01G4/232H01G4/30H01G4/224H01G4/008
Inventor 松井透悟
Owner MURATA MFG CO LTD