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:

Sep. 07, 2021
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Taketo Nishiyama, Tokyo, JP;

Hiroyuki Masumoto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H02M 7/00 (2006.01); H05K 1/02 (2006.01); H02M 7/5387 (2007.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H05K 7/209 (2013.01); H02M 7/003 (2013.01); H05K 1/0204 (2013.01); H05K 7/20454 (2013.01); H02M 7/5387 (2013.01); H02P 27/06 (2013.01); H05K 2201/10166 (2013.01); H05K 2201/10174 (2013.01); H05K 2201/2018 (2013.01);
Abstract

The power semiconductor module includes a power semiconductor assembly and a heat transfer member. The power semiconductor assembly includes a circuit board and a case. The circuit board includes an insulating substrate. The second attachment surface to which the heat transfer member is attached is recessed from the first attachment surface to which the heat sink is attached. The maximum recessed distance of the second attachment surface from the first attachment surface is smaller than the original thickness of the heat transfer member, and is greater than the lower limit thickness of the heat transfer member.


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