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. 20, 2011
Filed:
Apr. 24, 2009
Yasuto Miyake, Hirakata, JP;
Ryoji Hiroyama, Kyo-tanabe, JP;
Masayuki Hata, Kadoma, JP;
Yasumitsu Kuno, Hirakata, JP;
Yasuto Miyake, Hirakata, JP;
Ryoji Hiroyama, Kyo-tanabe, JP;
Masayuki Hata, Kadoma, JP;
Yasumitsu Kuno, Hirakata, JP;
Sanyoelectric Co., Ltd., Osaka, JP;
Abstract
A nitride-based semiconductor device includes a substrate, a first step portion formed on a main surface side of a first side end surface of the substrate, a second step portion formed on the main surface side of a second side end surface substantially parallel to the first side end surface on an opposite side of the first side end surface and a nitride-based semiconductor layer whose first side surface is a (000-1) plane starting from a first side wall of the first step portion and a second side surface starting from a second side wall of the second step portion on the main surface.