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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 12302617 B1

PDFFull Text
Date of Patent:
May. 13, 2025

Filed:

Feb. 08, 2024

Semiconductor device and manufacturing method of semiconductor device

Applicant:

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

Inventor:

Yasunori Agata, Matsumoto, JP;

Assignee:

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

Attorneys:

William H. Bollman

WILLIAM BOLLMAN

OURMAZD OJAN

DANIEL H SHERR

GEORGE MORGAN

LINDA SALTIEL

Primary Examiner:

Samuel A Gebremariam

Int. Cl.
CPC ...
H10D 62/60 (2025.01); H01L 21/263 (2006.01); H01L 21/265 (2006.01); H10D 8/00 (2025.01); H10D 12/00 (2025.01);
U.S. Cl.
CPC ...
H10D 62/60 (2025.01); H01L 21/2636 (2013.01); H01L 21/26506 (2013.01); H10D 8/00 (2025.01); H10D 12/481 (2025.01);
Abstract

Provided is a semiconductor device which includes a semiconductor substrate that has an upper surface and a lower surface and includes a bulk donor. A hydrogen chemical concentration distribution of the semiconductor substrate in a depth direction has a first hydrogen concentration peak and a second hydrogen concentration peak disposed between the lower surface of the semiconductor substrate and the first hydrogen concentration peak. An intermediate region including an intermediate donor concentration is provided between the first hydrogen concentration peak and the second hydrogen concentration peak.

Find Patent Forward Citations

Agata, Yasunori. (2025). Semiconductor device and manufacturing method of semiconductor device (U.S. Patent No. 12302617). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12302617

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

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