IP Library › Granted Patent US 10,153,091
Granted Patent B2
US 10,153,091 · App. 15/845,666 · Granted Dec 11, 2018

Multi-layer ceramic capacitor and method of producing the same

Inventor: Yusuke Kowase (Tokyo, JP)
Assignee: Taiyo Yuden Co., Ltd.
H01G4/30H01G4/1227
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Quick Facts
Patent No.
US 10,153,091
App. No.
15/845,666
Granted
Dec 11, 2018
Kind
B2
Abstract

A multi-layer ceramic capacitor includes a multi-layer unit and a side margin. The multi-layer unit includes ceramic layers laminated in a first direction, internal electrodes disposed between the ceramic layers, and a side surface from which the internal electrodes are exposed, the side surface being oriented in a second direction orthogonal to the first direction. The side margin covers the side surface. The side margin includes a first area having a porosity of 10% or less, a dimension of the first area in the second direction from the side surface being ¼ of a dimension of the side margin in the second direction, and a second area having a porosity of 10% or more and 25% or less and having a porosity higher than the porosity of the first area, the second area covering the first area from the second direction.

Claims (10)

1. A multi-layer ceramic capacitor, comprising:

a multi-layer unit that includes

ceramic layers laminated in a first direction,

internal electrodes disposed between the ceramic layers, and

a side surface from which the internal electrodes are exposed, the side surface being oriented in a second direction orthogonal to the first direction; and

a side margin that covers the side surface, the side margin including

a first area having a porosity of 10% or less, a dimension of the first area in the second direction from the side surface being ¼ of a dimension of the side margin in the second direction, and

a second area having a porosity of 10% or more and 25% or less and having a porosity higher than the porosity of the first area, the second area covering the first area from the second direction.

2. The multi-layer ceramic capacitor according to claim 1 , wherein

a dimension of the side margin in the second direction is 25 μm or less.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2018
From: KOWASE, YUSUKE
To: TAIYO YUDEN CO., LTD.
Reel/Frame 045312/0311 →
Priority Claims (1)
JP 2016-250858 · Dec 26, 2016 · national
Continuity (1)
Related Publication 20180182555A1 · Jun 28, 2018