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:
May. 28, 2024

Filed:

Jul. 30, 2021
Applicant:

Fuji Electric Co., Ltd., Kawasaki, JP;

Inventors:

Yoshihiro Tateishi, Kawasaki, JP;

Takahiro Koyama, Kawasaki, JP;

Hiromichi Gohara, Kawasaki, JP;

Assignee:

FUJI ELECTRIC CO., LTD., Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/473 (2006.01); H01L 25/07 (2006.01); H05K 7/20 (2006.01);
U.S. Cl.
CPC ...
H01L 23/473 (2013.01); H01L 25/072 (2013.01); H05K 7/20927 (2013.01);
Abstract

A cooler includes a top plate having a plurality of fins provided on a surface thereof, and a circumferential wall part provided so as to surround outer circumferences of the plurality of fins along outer circumferential edges of the top plate, and a bottom plate bonded to distal ends of the circumferential wall part and the plurality of fins. A flow path for a coolant is formed by a space enclosed by the top plate, the circumferential wall part and the bottom plate. The bottom plate has inlet and discharge portions for the coolant. The inlet and discharge portions are disposed so as to face each other diagonally with the plurality fins interposed therebetween. An inner surface of the circumferential wall part has a step part that tilts from the inner surface of the circumferential wall part toward the discharge portion at a position neighboring to the discharge portion.


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