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:
Apr. 22, 2014
Filed:
Jun. 08, 2012
Applicants:
Masataka Yanagihara, Niiza, JP;
Tetsuji Matsuo, Niiza, JP;
Inventors:
Masataka Yanagihara, Niiza, JP;
Tetsuji Matsuo, Niiza, JP;
Assignee:
Sanken Electric Co., Ltd., Niiza-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes a silicon substrate, an aluminum nitride layer which is arranged on the silicon substrate and has a region where silicon is doped thereof as an impurity, a buffer layer which is arranged on the aluminum nitride layer and has a structure where a plurality of nitride semiconductor films are laminated, and a semiconductor functional layer which is arranged on the buffer layer and made of nitride semiconductor.