IP Library › Granted Patent US 9,892,855
Granted Patent B2
US 9,892,855 · App. 15/275,953 · Granted Feb 13, 2018

Electronic component

Inventors: Norihisa Ando (Tokyo, JP); Atsushi Takeda (Nikaho, JP); Hideki Kaneko (Tokyo, JP); Yui Sugiura (Tokyo, JP); Tatsuo Inagaki (Tokyo, JP); Tomomichi Gunji (Tokyo, JP); Kouhei Yamaguchi (Tokyo, JP)
Assignee: TDK CORPORATION
H01G4/30H01G4/005H01G4/232H01G4/2325H01G4/248H01G4/12
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Quick Facts
Patent No.
US 9,892,855
App. No.
15/275,953
Granted
Feb 13, 2018
Kind
B2
Abstract

An external electrode includes a sintered metal layer disposed on at least an end surface and a conductive resin layer disposed on the sintered metal layer. The sintered metal layer includes a first portion, a second portion, and a third portion. The first portion is disposed at a central region of the end surface. The second portion is disposed at a part of a peripheral region of the end surface, and extends to an edge portion of the end surface from the first portion. The third portion is disposed at a remaining part of the peripheral region of the end surface. The thickness of the second portion is less than that of the first portion. The thickness of the third portion is less than that of the second portion. The first portion, the second portion, and the third portion are covered with the conductive resin layer.

Claims (24)

1. An electronic component comprising:

an element body having a pair of end surfaces opposing each other;

an external electrode disposed on at least the end surface; and

an internal conductor disposed in the element body and connected to the external electrode, wherein

the internal conductor includes an end portion exposed to the end surface,

the external electrode includes a sintered metal layer disposed on at least the end surface and a conductive resin layer disposed on the sintered metal layer,

the sintered metal layer includes:

a first portion disposed at a central region of the end surface;

a second portion disposed at a part of a peripheral region of the end surface, and extending to an edge portion of the end surface from the first portion; and

a third portion disposed at a remaining part of the peripheral region of the end surface,

a thickness of the second portion is less than that of the first portion, and a thickness of the third portion is less than that of the second portion, and

the first portion, the second portion, and the third portion are covered with the conductive resin layer.

2. The electronic component according to claim 1 , wherein

the remaining part of the peripheral region of the end surface includes a region exposed from the third portion, and

the region exposed from the third portion is covered with the conductive resin layer.

3. The electronic component according to claim 1 , wherein

the second portion and the end portion of the internal conductor intersect, viewing from a direction perpendicular to the end surface.

4. The electronic component according to claim 1 , wherein

the end surface has a rectangular shape, and

the second portion extends to a corner portion of the end surface.

5. The electronic component according to claim 1 , wherein

a thickness of the conductive resin layer located on the central region of the end surface is greater than a thickness of the conductive resin layer located on the peripheral region of the end surface.

6. The electronic component according to claim 1 , wherein

the external electrode further includes a plating layer disposed on the conductive resin layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 26, 2016
From: ANDO, NORIHISA; TAKEDA, ATSUSHI; KANEKO, HIDEKI; SUGIURA, YUI; INAGAKI, TATSUO; GUNJI, TOMOMICHI; YAMAGUCHI, KOUHEI
To: TDK CORPORATION
Reel/Frame 039857/0040 →
Priority Claims (1)
JP 2015-198330 · Oct 6, 2015 · national
Continuity (1)
Related Publication 20170098505A1 · Apr 6, 2017