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:
Nov. 26, 2013
Filed:
Sep. 16, 2011
Syotaro Ono, Kanagawa-ken, JP;
Wataru Saito, Kanagawa-ken, JP;
Shunji Taniuchi, Kanagawa-ken, JP;
Miho Watanabe, Miyagi-ken, JP;
Hiroaki Yamashita, Tokyo, JP;
Toshiyuki Naka, Kanagawa, JP;
Syotaro Ono, Kanagawa-ken, JP;
Wataru Saito, Kanagawa-ken, JP;
Shunji Taniuchi, Kanagawa-ken, JP;
Miho Watanabe, Miyagi-ken, JP;
Hiroaki Yamashita, Tokyo, JP;
Toshiyuki Naka, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to an embodiment, a semiconductor device includes a second semiconductor layer provided on a first semiconductor layer and including first pillars and second pillars. A first control electrode is provided in a trench of the second semiconductor layer and a second control electrode is provided on the second semiconductor layer and connected to the first control electrode. A first semiconductor region is provided on a surface of the second semiconductor layer except for a portion under the second control electrode. A second semiconductor region is provided on a surface of the first semiconductor region, the second semiconductor region being apart from the portion under the second control electrode and a third semiconductor region is provided on the first semiconductor region. A first major electrode is connected electrically to the first semiconductor layer and a second major electrode is connected electrically to the second and the third semiconductor region.