IP Library › Granted Patent US 10,522,290
Granted Patent B2
US 10,522,290 · App. 15/364,293 · Granted Dec 31, 2019

Multilayer ceramic electronic component

Inventor: Yutaka Ota (Nagaokakyo, JP)
Assignee: MURATA MANUFACTURING CO., LTD.
H01G4/30H01C1/148H01C7/008H01F27/24H01F27/2804H01G4/012H01G4/1227H01G4/228H01L41/0471H01L41/0472H01L41/083H01L41/1871H01L41/1876H01F2027/2809
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Quick Facts
Patent No.
US 10,522,290
App. No.
15/364,293
Granted
Dec 31, 2019
Kind
B2
Abstract

A multilayer ceramic capacitor a multilayer body including ceramic layers and principal surfaces opposing each other, side surfaces opposing each other, and end surfaces opposing each other, the principal surface defining and functioning as a mounting surface; an inner electrode located within the multilayer body and partially extended to the principal surface; an outer electrode located on the principal surface and connected to the inner electrode. The outer electrode includes outer electrode side surface portions located also on portions of the side surfaces. When a length of the outer electrode side surface portions in a direction connecting the principal surfaces is indicated by A, and a length of the multilayer body in the direction connecting the principal surfaces is indicated by B, 0.063≤A/B≤1.000 is satisfied.

Claims (34)

1. A multilayer ceramic electronic component comprising:

a multilayer body including a plurality of laminated ceramic layers and including a first principal surface and a second principal surface opposing each other, a first side surface and a second side surface opposing each other in a lamination direction of the multilayer body, and a first end surface and a second end surface opposing each other, the first principal surface or the second principal surface defining and functioning as a mounting surface;

a first inner electrode located within the multilayer body and partially extended to only one of the first or second principal surface at the first end surface side;

a second inner electrode located within the multilayer body and partially extended to only one of the first or second principal surface at the second end surface side at a position different from that of the first inner electrode;

a first outer electrode located on the first or second principal surface and connected to the first inner electrode on the first or second principal surface; and

a second outer electrode located on the first or second principal surface and connected to the second inner electrode on the first or second principal surface; wherein

the first outer electrode includes a first outer electrode side surface portion located on the first or second principal surface and portions of the first side surface and the second side surface;

the second outer electrode includes a second outer electrode side surface portion located on the first or second principal surface and portions of the first side surface and the second side surface;

0.063≤A/B≤1.000 is satisfied when a length of the first outer electrode side surface portion and the second outer electrode side surface portion in a direction connecting the first principal surface and the second principal surface is indicated by A and a length of the multilayer body in the direction connecting the first principal surface and the second principal surface is indicated by B; and

0.11≤C/D≤0.49 is satisfied when a length of the first outer electrode side surface portion and the second outer electrode side surface portion in a direction connecting the first end surface and the second end surface is indicated by C and a length of the multilayer body in the direction connecting the first end surface and the second end surface is indicated by D.

2. The multilayer ceramic electronic component according to claim 1 , wherein the laminated ceramic layers include a piezoelectric ceramic, and the multilayer ceramic electronic component defines and functions as a ceramic piezoelectric element.

3. The multilayer ceramic electronic component according to claim 1 , wherein the laminated ceramic layers include a semiconductor ceramic, and the multilayer ceramic electronic component defines and functions as a thermistor element.

4. The multilayer ceramic electronic component according to claim 1 , wherein the laminated ceramic layers include a magnetic ceramic, and the multilayer ceramic electronic component defines and functions as an inductor element.

5. The multilayer ceramic electronic component according to claim 1 , wherein at least one gap is provided in the multilayer body between the first end surface and the second end surface.

6. The multilayer ceramic electronic component according to claim 1 , wherein the first outer electrode and the second outer electrode include a base electrode layer and a plating layer.

7. The multilayer ceramic electronic component according to claim 6 , wherein the base electrode layer includes at least one of a baked layer, a resin layer, and a thin film layer.

8. The multilayer ceramic electronic component according to claim 6 , wherein the plating layer includes a two-layer structure.

9. A multilayer ceramic electronic component comprising:

a multilayer body including a plurality of laminated ceramic layers and including a first principal surface and a second principal surface opposing each other, a first side surface and a second side surface opposing each other in a lamination direction of the multilayer body, and a first end surface and a second end surface opposing each other, the first principal surface or the second principal surface defining and functioning as a mounting surface;

a first inner electrode located within the multilayer body and partially extended to the first and second principal surfaces at the first end surface side;

a second inner electrode located within the multilayer body and partially extended to the first and second principal surfaces at the second end surface side at a position different from that of the first inner electrode;

a first outer electrode located on the first and second principal surfaces and connected to the first inner electrode on the first and second principal surfaces; and

a second outer electrode located on the first and second principal surfaces and connected to the second inner electrode on the first and second principal surfaces; wherein

the first outer electrode includes a first outer electrode side surface portion located on the first and second principal surfaces and portions of the first side surface and the second side surface;

the second outer electrode includes a second outer electrode side surface portion located on the first and second principal surfaces and portions of the first side surface and the second side surface;

0.063≤A/B≤1.000 is satisfied when a length of the first outer electrode side surface portion and the second outer electrode side surface portion in a direction connecting the first principal surface and the second principal surface is indicated by A and a length of the multilayer body in the direction connecting the first principal surface and the second principal surface is indicated by B; and

0.11≤C/D≤0.49 is satisfied when a length of the first outer electrode side surface portion and the second outer electrode side surface portion in a direction connecting the first end surface and the second end surface is indicated by C and a length of the multilayer body in the direction connecting the first end surface and the second end surface is indicated by D.

10. The multilayer ceramic electronic component according to claim 9 , wherein the laminated ceramic layers include a piezoelectric ceramic, and the multilayer ceramic electronic component defines and functions as a ceramic piezoelectric element.

11. The multilayer ceramic electronic component according to claim 9 , wherein the laminated ceramic layers include a semiconductor ceramic, and the multilayer ceramic electronic component defines and functions as a thermistor element.

12. The multilayer ceramic electronic component according to claim 9 , wherein the laminated ceramic layers include a magnetic ceramic, and the multilayer ceramic electronic component defines and functions as an inductor element.

13. The multilayer ceramic electronic component according to claim 9 , wherein at least one gap is provided in the multilayer body between the first end surface and the second end surface.

14. The multilayer ceramic electronic component according to claim 9 , wherein the first outer electrode and the second outer electrode include a base electrode layer and a plating layer.

15. The multilayer ceramic electronic component according to claim 14 , wherein the base electrode layer includes at least one of a baked layer, a resin layer, and a thin film layer.

16. The multilayer ceramic electronic component according to claim 14 , wherein the plating layer includes a two-layer structure.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 30, 2016
From: OTA, YUTAKA
To: MURATA MANUFACTURING CO., LTD.
Reel/Frame 040460/0367 →
Priority Claims (1)
JP 2015-236242 · Dec 3, 2015 · national
Continuity (1)
Related Publication 20170162328A1 · Jun 8, 2017