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.:

US 7863679 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 04, 2011

Filed:

Oct. 22, 2007
Applicant:

Kei Takehara, Shiga, JP;

Inventor:

Kei Takehara, Shiga, JP;

Assignee:

Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vertical power MOSFET includes a semiconductor substrate including a trench, a gate electrode layer having a prescribed impurity concentration and being formed inside the trench, and a cap insulating layer having a lower impurity concentration than the impurity concentration of the gate electrode layer and covering the gate electrode layer to provide insulation.


Find Patent Forward Citations

Takehara, Kei. (2011). Semiconductor apparatus and method of manufacturing the same (U.S. Patent No. 7863679). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7863679

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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