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. 27, 2007
Filed:
Apr. 04, 2005
Toru Kurosaki, Saitama, JP;
Shinji Kunori, Saitama, JP;
Mizue Kitada, Saitama, JP;
Kosuke Ohshima, Saitama, JP;
Hiroaki Shishido, Saitama, JP;
Toru Kurosaki, Saitama, JP;
Shinji Kunori, Saitama, JP;
Mizue Kitada, Saitama, JP;
Kosuke Ohshima, Saitama, JP;
Hiroaki Shishido, Saitama, JP;
Shindengen Electric Manufacturing Co., Ltd.,, Tokyo, JP;
Abstract
An active groove filled regionis kept at a portion of an active grooveconnecting to an embedded regionpositioned below a gate groove. The active groove filled regionconnects to a source electrode filmso as to have the same electric potential as a source region. When a reverse bias is applied between a base regionand a conductive layer, a reverse bias is also applied between the embedded regionand the conductive layer; and therefore, depletion layers spread out together and a withstanding voltage is increased.