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:
Dec. 27, 2016
Filed:
Mar. 02, 2015
Kabushiki Kaisha Toshiba, Tokyo, JP;
Mitsuhiko Kitagawa, Bunkyo Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
A semiconductor device includes a first semiconductor region of a second conductivity type, and a second semiconductor region of a first conductivity type. A third semiconductor region of a first conductivity type is selectively provided on the second semiconductor region. A fourth semiconductor region of the first conductivity type and a fifth semiconductor region of the second conductivity type are selectively provided on the third semiconductor region. A first electrode is provided on a second insulating film within the second semiconductor region. A second electrode is in contact with the fifth semiconductor region and the third semiconductor region. The sixth semiconductor region is provided on the second semiconductor region at least in a portion thereon other than the area where the third semiconductor region is provided. The sixth semiconductor region is not in contact with the second electrode.