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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.:

US 11735424 B1

PDFFull Text
Date of Patent:
Aug. 22, 2023

Filed:

May. 18, 2022

Semiconductor device and manufacturing method thereof

Applicant:

Fuji Electric Co., Ltd., Kanagawa, JP;

Inventors:

Yasunori Agata, Matsumoto, JP;

Takashi Yoshimura, Matsumoto, JP;

Hiroshi Takishita, Matsumoto, JP;

Misaki Meguro, Matsumoto, JP;

Naoko Kodama, Matsumoto, JP;

Yoshihiro Ikura, Matsumoto, JP;

Seiji Noguchi, Matsumoto, JP;

Yuichi Harada, Matsumoto, JP;

Yosuke Sakurai, Azumino, JP;

Assignee:

FUJI ELECTRIC CO., LTD., Kanagawa, JP;

Attorney:
Primary Examiner:

David Vu

Int. Cl.
CPC ...
H01L 27/06 (2006.01); H01L 29/06 (2006.01); H01L 29/10 (2006.01); H01L 29/739 (2006.01); H01L 21/22 (2006.01); H01L 21/265 (2006.01); H01L 21/268 (2006.01); H01L 29/32 (2006.01); H01L 29/40 (2006.01); H01L 29/66 (2006.01); H01L 29/861 (2006.01);
U.S. Cl.
CPC ...
H01L 21/221 (2013.01); H01L 21/268 (2013.01); H01L 21/26526 (2013.01); H01L 27/0664 (2013.01); H01L 29/0623 (2013.01); H01L 29/1095 (2013.01); H01L 29/32 (2013.01); H01L 29/404 (2013.01); H01L 29/66348 (2013.01); H01L 29/7397 (2013.01); H01L 29/8613 (2013.01);
Abstract

A semiconductor device comprising a semiconductor substrate including an upper surface and a lower surface wherein a donor concentration of a drift region is higher than a base doping concentration of the semiconductor substrate, entirely over the drift region in a depth direction connecting the upper surface and the lower surface is provided.

Find Patent Forward Citations

Agata, Yasunori. (2023). Semiconductor device and manufacturing method thereof (U.S. Patent No. 11735424). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11735424

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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