IP Library Granted Patent US 10,541,078
Granted Patent B2
US 10,541,078 · App. 15/488,876 · Granted Jan 21, 2020

Electronic component

Inventors: Shinichi Sato (Tokyo, JP); Yohei Tadaki (Tokyo, JP); Akihiko Oide (Tokyo, JP); Yuma Ishikawa (Tokyo, JP); Hidekazu Sato (Tokyo, JP); Kazuhiro Ebina (Tokyo, JP); Hiroyuki Tanoue (Tokyo, JP)
Assignee: TDK CORPORATION
H01F27/2804H01F27/29H01F27/323H01F41/041H01F41/122H01F2027/2809
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Quick Facts
Patent No.
US 10,541,078
App. No.
15/488,876
Granted
Jan 21, 2020
Kind
B2
Abstract

An electronic component includes: an element body in which a plurality of insulator layers are stacked; a coil in which a plurality of inner conductors installed in the element body are electrically connected to each other; and an outer electrode that is disposed on an outer surface of the element body, is electrically connected to the coil, and includes at least a baked electrode layer. The inner conductor connected to the outer electrode includes a connection conductor that electrically connects the baked electrode layer to the inner conductor. The connection conductor includes a protruding portion that protrudes from the outer surface of the element body to the outer electrode. The protruding portion includes a metal having a smaller diffusion coefficient than a metal of a main component included in the baked electrode layer. The inner conductors have a lower electric resistance value than the metal included in the protruding portion.

Claims (13)

1. An electronic component comprising:

an element body in which a plurality of insulator layers are stacked;

a coil in which a plurality of inner conductors installed in the element body are electrically connected to each other;

an outer electrode that is disposed on an outer surface of the element body, is electrically connected to the coil, and includes at least a baked electrode layer, the outer electrode being connected to one of the plurality of inner conductors;

a connection conductor included in the inner conductor connected to the outer electrode, the connection conductor electrically connecting the baked electrode layer to the inner conductor; and

a protruding portion included in the connection conductor, the protruding portion protruding from the outer surface of the element body to the outer electrode and including a metal having a smaller diffusion coefficient than a metal of a main component included in the baked electrode layer,

wherein the inner conductors have a lower electric resistance value than the protruding portion including the metal.

2. The electronic component according to claim 1 , wherein

the metal of the main component included in the baked electrode layer is Ag, and

the metal included in the protruding portion is Pd.

3. The electronic component according to claim 1 , wherein

the outer surface of the element body is covered with a glass layer, and

the protruding portion is electrically connected to the baked electrode layer by penetrating the glass layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 17, 2017
From: SATO, SHINICHI; TADAKI, YOHEI; OIDE, AKIHIKO; ISHIKAWA, YUMA; SATO, HIDEKAZU; EBINA, KAZUHIRO; TANOUE, HIROYUKI
To: TDK CORPORATION
Reel/Frame 042028/0705 →
Priority Claims (3)
JP 2016-085495 · Apr 21, 2016 · national
JP 2016-085496 · Apr 21, 2016 · national
JP 2016-089425 · Apr 27, 2016 · national
Continuity (1)
Related Publication 20170309389A1 · Oct 26, 2017