The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 09, 2020

Filed:

Mar. 04, 2019
Applicant:

Taiyo Yuden Co., Ltd., Tokyo, JP;

Inventors:

Tatsuro Sawatari, Tokyo, JP;

Norio Sekiguchi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/11 (2006.01); H05K 1/18 (2006.01); H05K 3/00 (2006.01); H05K 3/06 (2006.01); H05K 1/02 (2006.01); H05K 1/05 (2006.01);
U.S. Cl.
CPC ...
H05K 3/0052 (2013.01); H05K 1/119 (2013.01); H05K 3/0035 (2013.01); H05K 1/0284 (2013.01); H05K 1/056 (2013.01); H05K 1/111 (2013.01); H05K 1/181 (2013.01); H05K 1/185 (2013.01); H05K 3/06 (2013.01); H05K 2201/09909 (2013.01); H05K 2203/0323 (2013.01); H05K 2203/1184 (2013.01);
Abstract

A circuit board includes: a metal core base material including a first main surface, a second main surface on an opposite side of the first main surface, a side surface, and a projection that projects from the side surface; an outer cover including a first insulation layer that covers the first main surface, a second insulation layer that covers the second main surface, and a third insulation layer that covers the side surface; a first wiring layer provided in the first main surface with the first insulation layer interposed between the first wiring layer and the first main surface; a second wiring layer provided in the second main surface with the second insulation layer interposed between the second wiring layer and the second main surface; and a sealing portion that is made of an insulation material embedded in the outer cover and covers an end surface of the projection.


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