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, 2024
Filed:
Apr. 18, 2022
Applicant:
Renesas Electronics Corporation, Tokyo, JP;
Inventors:
Makoto Koshimizu, Tokyo, JP;
Yasutaka Nakashiba, Tokyo, JP;
Assignee:
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/78 (2006.01); H01L 29/08 (2006.01); H01L 29/66 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7824 (2013.01); H01L 29/086 (2013.01); H01L 29/0878 (2013.01); H01L 29/66681 (2013.01);
Abstract
In semiconductor device, a field plate portion having a high concentration p-type semiconductor region, a low concentration p-type semiconductor region having a lower impurity concentration than the high concentration p-type semiconductor region and a high concentration n-type semiconductor region is provided. Then, the high concentration p-type semiconductor region is electrically connected to the source region while the high concentration n-type semiconductor region is electrically connected to the drain region.