Multilayer ceramic capacitor

A technology of ceramic capacitors and capacitors, which is applied in the direction of laminated capacitors, capacitors, fixed capacitors, etc., can solve the problems of reduced capacitance and difficulty in obtaining heat dissipation, and achieve excellent heat dissipation effects

Active Publication Date: 2018-03-09
TAIYO YUDEN KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this multilayer ceramic capacitor has a structure in which the capacitance decreases when the length of the internal electrode for heat dissipation is increased. Therefore, it is difficult to increase the length of the internal el...

Method used

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Examples

Experimental program
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Effect test

no. 1 Embodiment approach 》

[0038] Figure 1 ~ Figure 3 Multilayer ceramic capacitor 10 according to the first embodiment of the present invention is shown. In the description below, the figure 1 The left and right direction is marked as the length direction, and the figure 1 The up and down direction of is marked as the width direction, and the figure 2 The up and down direction of is denoted as height direction, and the dimensions along the above-mentioned length direction, width direction and height direction are denoted as length, width and height, respectively.

[0039] The dimensions of multilayer ceramic capacitor 10 are specified by length L, width W, and height H. For reference, become Figure 1 ~ Figure 3 The actual dimensions of the length L, width W, and height H of the base sample are 2000 μm, 1250 μm, and 1250 μm, respectively. This multilayer ceramic capacitor 10 includes a capacitor body 11 , a first external electrode 12 , a second external electrode 13 , a first metal layer 14 , a...

no. 2 Embodiment approach 》

[0082] Figure 8 ~ Figure 10 A multilayer ceramic capacitor 20 according to a second embodiment of the present invention is shown. In the description below, the Figure 8 The left and right direction is marked as the length direction, and the Figure 8 The up and down direction of is marked as the width direction, and the Figure 9 The up and down direction of is denoted as the height direction, and the dimensions along the above-mentioned length direction, width direction and height direction are denoted as length, width and height, respectively.

[0083] Multilayer ceramic capacitor 20 is the same as the above-mentioned multilayer ceramic capacitor 10 (refer to Figure 1 ~ Figure 3 ) differ in structure in that an external electrode without the fourth part 12d and the fifth part 12e is used as the first external electrode 12, and an external electrode without the fourth part 13d and the fifth part is used as the second external electrode 13. Part 13e of the external elec...

no. 3 Embodiment approach 》

[0092] Figure 12 to Figure 14 A multilayer ceramic capacitor 30 according to a third embodiment of the present invention is shown. In the description below, the Figure 12 The left and right direction is marked as the length direction, and the Figure 12 The up and down direction of is marked as the width direction, and the Figure 13 The up and down direction of is denoted as the height direction, and the dimensions along the above-mentioned length direction, width direction and height direction are denoted as length, width and height, respectively.

[0093] The multilayer ceramic capacitor 30 is the same as the multilayer ceramic capacitor 10 described above (refer to Figure 1 ~ Figure 3 ) differ in structure in that an external electrode without the third part 12c, a fourth part 12d, and a fifth part 12e is used as the first external electrode 12, and an external electrode without the third part 12 is used as the second external electrode 13. The external electrodes o...

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Abstract

The invention provides a multilayer ceramic capacitor having excellent heat dissipation property. The multilayer ceramic capacitor 10 has a first metal layer 14 having many holes 14a, and a second metal layer 15 having many holes 15a, with a clearance CL provided in between in the length direction, on the other height-direction side face of the capacitor body; the first metal layer 14 is partiallycovered by a third part 12c of a first external electrode 12, while the remainder is exposed; and the second metal layer 15 is partially covered by a third part 13c of a second external electrode 13,while the remainder is exposed.

Description

technical field [0001] The present invention relates to laminated ceramic capacitors. Background technique [0002] A multilayer ceramic capacitor generally includes: a capacitor body having a substantially rectangular parallelepiped shape having a capacitance portion in which a plurality of internal electrode layers are stacked via a dielectric layer; a first external electrode connected to a part of the plurality of internal electrode layers, and continuously It has a first part present at least on one side in the longitudinal direction of the capacitor body and a second part extending to one side in the height direction of the capacitor body; and a second external electrode connected to the remaining parts of the plurality of internal electrode layers, and it is continuous The ground has at least a first portion present on the other side in the longitudinal direction of the capacitor body and a second portion extending to one side in the height direction of the capacitor ...

Claims

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Application Information

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IPC IPC(8): H01G4/30H01G4/002H01G4/12H01G2/08
CPCH01G2/08H01G4/002H01G4/30H01G4/12H01G4/012H01G4/1227H01G4/232H01G4/258H01G4/008H01G4/248H01G4/33
Inventor 北村翔平水野高太郎
Owner TAIYO YUDEN KK
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