IP Library Granted Patent US 8,553,390
Granted Patent B2
US 8,553,390 · App. 13/177,878 · Granted Oct 8, 2013

Ceramic electronic component

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,553,390
App. No.
13/177,878
Granted
Oct 8, 2013
Kind
B2
Abstract

A ceramic electronic component 100 includes a ceramic body 1 in which internal electrodes containing a metal component is buried, and a pair of terminal electrodes 3 provided to cover both end surfaces 11 of the ceramic body to which the internal electrodes are exposed. Each of the terminal electrodes 3 has a first electrode layer and a second electrode layer formed by baking a conductive green sheet from a side close to the ceramic body 1 . The second electrode layer contains the metal component diffused from the internal electrodes.

Claims (20)

1. A ceramic electronic component comprising:

a ceramic body in which internal electrodes containing a metal component is buried, the internal electrodes being exposed to end surfaces of the ceramic body; and

a pair of terminal electrodes provided to cover end surfaces of the ceramic body,

wherein each of the terminal electrodes has a first electrode layer and a second electrode layer formed by baking a conductive green sheet from a side close to the ceramic body, and the second electrode layer contains the metal component which is diffused from the internal electrodes, and

wherein the content of the glass component in the first electrode layer is higher than that in the second electrode layer,

wherein the second electrode layer is provided to cover part of the first electrode layer on at least one side surface orthogonal to the end surfaces of the ceramic body.

2. A ceramic electronic component comprising:

a ceramic body in which internal electrodes containing a metal component is buried, the internal electrodes being exposed to end surfaces of the ceramic body; and

a pair of terminal electrodes provided to cover end surfaces of the ceramic body,

wherein each of the terminal electrodes has a first electrode layer and a second electrode layer formed by baking a conductive green sheet from a side close to the ceramic body, and the second electrode layer contains the metal component which is diffused from the internal electrodes, and

wherein the content of the glass component in the first electrode layer is higher than that in the second electrode layer,

wherein the metal component is eccentrically-located in a crystal grain boundary in the second electrode layer,

and wherein the second electrode layer is provided to cover part of the first electrode layer on at least one side surface orthogonal to the end surfaces of the ceramic body.

3. A ceramic electronic component comprising:

a ceramic body in which internal electrodes containing a metal component is buried, the internal electrodes being exposed to end surfaces of the ceramic body; and

a pair of terminal electrodes provided to cover end surfaces of the ceramic body,

wherein each of the terminal electrodes has a first electrode layer and a second electrode layer formed by baking a conductive green sheet from a side close to the ceramic body, and the second electrode layer contains the metal component which is diffused from the internal electrodes, and

wherein the content of the glass component in the first electrode layer is higher than that in the second electrode layer,

wherein each of the terminal electrodes has a third electrode layer provided by a plating layer covering the second electrode layer,

and wherein the second electrode layer is provided to cover part of the first electrode layer on at least one side surface orthogonal to the end surfaces of the ceramic body.

Assignments (2)
CHANGE OF ADDRESS Recorded Jun 12, 2013
From: TDK CORPORATION
To: TDK CORPORATION
Reel/Frame 030651/0687 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 3, 2011
From: TANIGUCHI, SUSUMU; YANAGIDA, MIYUKI; ABE, HISAYUKI; INOUE, YUKARI; KITAGAMI, MASATAKA
To: TDK CORPORATION
Reel/Frame 026691/0924 →