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:
Jan. 31, 2012
Filed:
Jul. 13, 2009
Applicants:
Hiroki Hozumi, Kanagawa, JP;
Yuji Sasaki, Kanagawa, JP;
Shusaku Yanagawa, Kanagawa, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a semiconductor device, including: a first semiconductor region of a first conductivity type; a second semiconductor region having pairs of first pillar regions of the first conductivity type, and second pillar regions of a second conductivity type alternately provided; a third semiconductor region of the second conductivity type; a fourth semiconductor region of the first conductivity type; and control electrodes each provided within a trench through an insulating film, a sidewall of the trench being formed so as to contact each of the third semiconductor region and the fourth semiconductor region.