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:
Jul. 09, 2013
Filed:
Mar. 19, 2012
Wataru Saito, Hyogo-ken, JP;
Syotaro Ono, Hyogo-ken, JP;
Toshiyuki Naka, Kanagawa-ken, JP;
Shunji Taniuchi, Ishikawa-ken, JP;
Miho Watanabe, Miyagi-ken, JP;
Hiroaki Yamashita, Hyogo-ken, JP;
Wataru Saito, Hyogo-ken, JP;
Syotaro Ono, Hyogo-ken, JP;
Toshiyuki Naka, Kanagawa-ken, JP;
Shunji Taniuchi, Ishikawa-ken, JP;
Miho Watanabe, Miyagi-ken, JP;
Hiroaki Yamashita, Hyogo-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor device includes a first semiconductor layer of a first conductive type, and a periodic array structure having a second semiconductor layer of a first conductive type and a third semiconductor layer of a second conductive type periodically arrayed on the first semiconductor layer in a direction parallel with a major surface of the first semiconductor layer. The second semiconductor layer and the third semiconductor layer are disposed in dots on the first semiconductor layer. A periodic structure in the outermost peripheral portion of the periodic array structure is different from a periodic structure of the periodic array structure in a portion other than the outermost peripheral portion.