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:
Aug. 27, 2019

Filed:

Dec. 27, 2017
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;

Inventors:

Satoshi Takahagi, Nagakute, JP;

Takuya Kadoguchi, Toyota, JP;

Yuji Hanaki, Nagoya, JP;

Syou Funano, Toyota, JP;

Shingo Iwasaki, Toyota, JP;

Takanori Kawashima, Anjyou, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/051 (2006.01); H01L 23/367 (2006.01); H01L 23/433 (2006.01); H01L 23/495 (2006.01); H01L 23/00 (2006.01); H01L 25/07 (2006.01); H01L 23/31 (2006.01);
U.S. Cl.
CPC ...
H01L 23/367 (2013.01); H01L 23/4334 (2013.01); H01L 23/49524 (2013.01); H01L 23/49562 (2013.01); H01L 23/49568 (2013.01); H01L 23/49575 (2013.01); H01L 24/26 (2013.01); H01L 25/072 (2013.01); H01L 23/051 (2013.01); H01L 23/3107 (2013.01); H01L 2224/40245 (2013.01);
Abstract

A semiconductor device includes a first metal plate and a second metal plate which interpose a first semiconductor element therebetween, the first metal plate and the second metal plate being bonded to the first semiconductor element with first soldered portions; and includes a third metal plate and a fourth metal plate which interpose a second semiconductor element therebetween, the third metal plate and the fourth metal plate being bonded to the second semiconductor element with second soldered portions. A first joint provided at an edge of the first metal plate and a second joint provided at an edge of the fourth metal plate are bonded with a third soldered portion. A total sum of thicknesses of the first soldered portions is different from a thickness of the third soldered portion, a solidifying point of the thinner one is higher than a solidifying point of the thicker one.


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