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.
Patent No.:
Date of Patent:
Apr. 25, 2023
Filed:
Oct. 23, 2020
Applicant:
Fuji Electric Co., Ltd., Kawasaki, JP;
Inventor:
Naoki Takizawa, Matsumoto, JP;
Assignee:
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/373 (2006.01); H01L 25/18 (2006.01); H01L 21/48 (2006.01);
U.S. Cl.
CPC ...
H01L 23/3735 (2013.01); H01L 21/4882 (2013.01); H01L 25/18 (2013.01);
Abstract
A semiconductor device, including a metal base plate having a front surface on which a disposition area is set apart from a central portion of the metal base plate, and a board placed over the disposition area with a solder therebetween. The solder has two edge portions of which one is closer than the other to the central portion of the metal base plate, said one being thicker than said the other.