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:
Jul. 14, 2026

Filed:

Aug. 18, 2023
Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Masahiro Sakai, Nagoya, JP;

Katsuhiro Imai, Nagoya, JP;

Hiroki Kobayashi, Chiryu, JP;

Assignee:

NGK INSULATORS, LTD., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10D 62/85 (2025.01); H10D 62/40 (2025.01); H10H 20/01 (2025.01); H10H 20/818 (2025.01); H10H 20/825 (2025.01); H10P 14/20 (2026.01);
U.S. Cl.
CPC ...
H10P 14/2908 (2026.01); H10D 62/405 (2025.01); H10D 62/8503 (2025.01); H10H 20/0137 (2025.01); H10H 20/818 (2025.01); H10H 20/825 (2025.01); H10P 14/2926 (2026.01);
Abstract

A Group-III element nitride semiconductor substrate includes: a first surface; and a second surface, wherein warping of a crystal plane of the first surface has a plurality of extremes.


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