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:
Dec. 10, 2013
Filed:
Dec. 27, 2012
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Naohide Wakita, Osaka, JP;
Kenichiro Tanaka, Osaka, JP;
Masahiro Ishida, Osaka, JP;
Satoshi Tamura, Toyama, JP;
Daisuke Shibata, Toyama, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/205 (2006.01);
U.S. Cl.
CPC ...
Abstract
A first group III nitride semiconductor layer has a low carbon concentration region having a carbon concentration of less than 1×10cm, and located in a region under an edge of a gate electrode closer to a drain electrode, a thickness dof the low carbon concentration region satisfies/(110·1)≦2</(110·1)+0.5