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. 10, 2013
Filed:
May. 20, 2010
Katsuya Okumura, Shinjuku-ku, JP;
Hiroki Wakimoto, Matsumoto, JP;
Kazuo Shimoyama, Matsumoto, JP;
Tomoyuki Yamazaki, Matsumoto, JP;
Katsuya Okumura, Shinjuku-ku, JP;
Hiroki Wakimoto, Matsumoto, JP;
Kazuo Shimoyama, Matsumoto, JP;
Tomoyuki Yamazaki, Matsumoto, JP;
Octec, Inc., , JP;
Fuji Electric Co., Ltd., , JP;
Abstract
A semiconductor device is disclosed which includes active section, edge termination sectionhaving a voltage blocking structure and disposed around active section, and separation sectionhaving a device separation structure and disposed around edge termination section. A surface device structure is formed on the first major surface of active section, trenchis formed in separation sectionfrom the second major surface side, and p-type separation regionis formed on the side wall of trenchsuch that p-type separation regionis in contact with p-type channel stopper regionformed in the surface portion on the first major surface side and p-type collector layerformed in the surface portion on the second major surface side. The semiconductor device and the method for manufacturing the semiconductor device according to the invention facilitate preventing the reverse blocking voltage from decreasing and shorten the manufacturing time of the semiconductor device.