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:
Nov. 12, 2013
Filed:
Jul. 27, 2012
Applicants:
Mikio Tsujiuchi, Kanagawa, JP;
Tetsuya Nitta, Kanagawa, JP;
Inventors:
Mikio Tsujiuchi, Kanagawa, JP;
Tetsuya Nitta, Kanagawa, JP;
Assignee:
Renesas Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/74 (2006.01); H01L 31/111 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a semiconductor device, at least one of the ratio (collector contact area/collector active area) in the High Side IGBT and the ratio (contact area on pregion/pregion area) is higher than the ratio in the Low Side IGBT. Thus, it is possible to develop without substantial changes and reduce the development burden.