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:
Sep. 08, 1998
Filed:
Jul. 07, 1997
Applicant:
Inventors:
Kenji Shimoyama, Ushiku, JP;
Hideki Gotoh, Ushiku, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257 22 ; 257 96 ; 257 97 ; 257 98 ; 257 99 ; 372 45 ; 372 46 ; 372 49 ; 372 99 ;
Abstract
In a wide band cap semiconductor, a GaP.sub.x N.sub.1-x (0.1.ltoreq.x.ltoreq.0.9) layer is inserted between a layer comprising AlGaInN and an electrode, The potential barrier between the electrode and the surface layer can be reduced. Contact resistance can be decreased, and ohmic contact can be easily taken up.