IP Library Granted Patent US 8,508,914
Granted Patent B2
US 8,508,914 · App. 13/025,792 · Granted Aug 13, 2013

Ceramic electronic component and method of manufacturing 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 8,508,914
App. No.
13/025,792
Granted
Aug 13, 2013
Kind
B2
Abstract

A ceramic electronic component includes a first dielectric layer, a second dielectric layer, and an intermediate layer. The first dielectric layer is a layer containing BaO, Nd 2 O 3 , and TiO 2 , the second dielectric layer is a layer containing a different material from the material of the first dielectric layer, and the intermediate layer is a layer formed between the first dielectric layer and the second dielectric layer and containing main components that are not contained in the first dielectric layer and the second dielectric layer in common as the main components.

Claims (13)

1. A ceramic electronic component, comprising:

a first dielectric layer containing BaO, Nd 2 O 3 , and TiO 2 as main components;

a second dielectric layer containing Mg 2 Sia 4 as a main component; and

an intermediate layer provided between the first dielectric layer and the second dielectric layer, wherein

the intermediate layer contains:

a component that is not contained in the second dielectric layer and is contained only in the first dielectric layer in a boundary between the intermediate layer and the first dielectric layer in a higher ratio than in a boundary between the intermediate layer and the second dielectric layer, a ratio of the component that is not contained in the second dielectric layer and is contained only in the first dielectric layer decreasing from a side of the first dielectric layer to a side of the second dielectric layer; and

a component that is not contained in the first dielectric layer and is contained only in the second dielectric layer in the boundary between the intermediate layer and the second dielectric layer in a higher ratio than in the boundary between the intermediate layer and the first dielectric layer, a ratio of the component that is not contained in the first dielectric layer and is contained only in the second dielectric layer decreasing from the side of the second dielectric layer to the side of the first dielectric layer.

2. The ceramic electronic component according to claim 1 , wherein

the first dielectric layer contains BaO, Nd 2 O 3 , and TiO 2 as main components and contains oxide as a sub-component, and

the second dielectric layer contains Mg 2 SiO 4 as the main component and contains oxide and glass as sub-components.

3. The ceramic electronic component according to claim 1 , wherein

the component that is not contained in the second dielectric layer and is contained only in the first dielectric layer contains Nd 2 O 3 and TiO 2 , and

the component that is not contained in the first dielectric layer and is contained only in the second dielectric layer contains MgO, SiO 2 , SrO, and CaO.

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 Feb 11, 2011
From: SAKURAI, TOSHIO; KOBUKE, HISASHI; ARASHI, TOMOHIRO; NAKANO, TAKAHIRO; MIYAUCHI, YASUHARU
To: TDK CORPORATION
Reel/Frame 025780/0313 →