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:
Nov. 19, 2024

Filed:

May. 21, 2020
Applicant:

Rohm Co., Ltd., Kyoto, JP;

Inventors:

Yuki Nakano, Kyoto, JP;

Kenji Yamamoto, Kyoto, JP;

Seigo Mori, Kyoto, JP;

Assignee:

ROHM CO., LTD., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/16 (2006.01); H01L 29/06 (2006.01); H01L 29/08 (2006.01); H01L 29/10 (2006.01); H01L 29/40 (2006.01); H01L 29/417 (2006.01); H01L 29/423 (2006.01);
U.S. Cl.
CPC ...
H01L 29/1608 (2013.01); H01L 29/1095 (2013.01); H01L 29/41766 (2013.01); H01L 29/42368 (2013.01);
Abstract

An SiC semiconductor device includes an SiC semiconductor layer of a first conductivity type having a main surface, a source trench formed in the main surface and having a side wall and a bottom wall, a source electrode embedded in the source trench and having a side wall contact portion in contact with a region of the side wall of the source trench at an opening side of the source trench, a body region of a second conductivity type formed in a region of a surface layer portion of the main surface along the source trench, and a source region of the first conductivity type electrically connected to the side wall contact portion of the source electrode in a surface layer portion of the body region.


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