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:
Mar. 14, 2023
Filed:
Jun. 12, 2019
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Masanori Nomura, Osaka, JP;
Hiroaki Ueno, Osaka, JP;
Yusuke Kinoshita, Kyoto, JP;
Yasuhiro Yamada, Tokyo, JP;
Hidetoshi Ishida, Osaka, JP;
Abstract
A bidirectional switch element includes: a substrate; an AlGaN layer; an AlGaN layer; a first source electrode; a first gate electrode; a second gate electrode; a second source electrode; a p-type AlGaN layer; a p-type AlGaN layer; an AlGaN layer; and an AlGaN layer. The AlGaN layer is formed over the substrate. The AlGaN layer is formed on the AlGaN layer. The AlGaN layer is interposed between the substrate and the AlGaN layer. The AlGaN layer is interposed between the substrate and the AlGaN layer and has a higher C concentration than the AlGaN layer.