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:
Jul. 23, 2024

Filed:

Jun. 25, 2019
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Tsuyoshi Takayama, Tokyo, JP;

Takaaki Shirasawa, Tokyo, JP;

Mitsunori Aiko, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/40 (2006.01); H01L 23/31 (2006.01); H01L 23/047 (2006.01); H01L 25/11 (2006.01);
U.S. Cl.
CPC ...
H01L 23/4006 (2013.01); H01L 23/3107 (2013.01); H01L 23/047 (2013.01); H01L 2023/4081 (2013.01); H01L 2023/4087 (2013.01); H01L 25/115 (2013.01); H01L 2924/1815 (2013.01);
Abstract

It is an object to provide a technique allowing for suppression of the height of a protrusion from the surface of a semiconductor module. A semiconductor device includes: a semiconductor module having a first groove; a Belleville washer having a recess in an outer surface and a protrusion on an inner surface; and a screw passing through the hole of the Belleville washer and the first groove of the semiconductor module to fasten the semiconductor module and an attached body. A head of the screw is accommodated in the recess of the Belleville washer, and at least portion of the protrusion of the Belleville washer is accommodated in the first groove of the semiconductor module.


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