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:
Sep. 08, 2026
Filed:
Sep. 03, 2021
Rohm Co., Ltd., Kyoto, JP;
Masaya Ueno, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
A semiconductor device includes a semiconductor substrate having a principal surface, a semiconductor layer formed on the principal surface of the semiconductor substrate, the semiconductor layer including a first-conductivity-type low concentration layer in contact with the principal surface of the semiconductor substrate and a first-conductivity-type high concentration layer that is formed at a surface layer portion of a surface, which is on a side opposite to the principal surface, of the semiconductor layer and that has a higher impurity concentration than the low concentration layer, and a Schottky electrode that is formed on the surface of the semiconductor layer and that forms a Schottky junction portion between the high concentration layer and the Schottky electrode.