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:
Feb. 02, 2016
Filed:
Feb. 24, 2012
Applicants:
Shigeharu Yamagami, Yokohama, JP;
Tetsuya Hayashi, Yokosuka, JP;
Taku Shimomura, Atsugi, JP;
Inventors:
Assignee:
NISSAN MOTOR CO., LTD., Yokohama-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/78 (2006.01); H01L 29/417 (2006.01); H01L 27/06 (2006.01); H01L 29/66 (2006.01); H01L 29/165 (2006.01); H01L 29/06 (2006.01); H01L 29/423 (2006.01); H01L 29/16 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7801 (2013.01); H01L 27/0629 (2013.01); H01L 29/0623 (2013.01); H01L 29/165 (2013.01); H01L 29/41766 (2013.01); H01L 29/66068 (2013.01); H01L 29/7803 (2013.01); H01L 29/7805 (2013.01); H01L 29/7806 (2013.01); H01L 29/7813 (2013.01); H01L 29/1608 (2013.01); H01L 29/4238 (2013.01);
Abstract
An anode regionis formed on a bottom portion of a trenchin which a gate electrodeis formed or in a drift regionimmediately under the trench. A contact holeis formed in the trenchat a depth reaching the anode region. A source electrodeis embedded in the contact holewhile interposing an inner wall insulating filmtherebetween. The anode regionand the source electrodeare electrically connected to each other in a state of being insulated from the gate electrodeby the inner wall insulating film