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:
Jan. 07, 1997
Filed:
Jul. 25, 1995
Applicant:
Inventors:
Assignee:
Fujitsu Limited, Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257192 ; 257194 ; 257280 ;
Abstract
A field effect transistor includes a substrate of a compound semiconductor material, source and drain regions formed in the substrate, a channel region defined between the source and said drain regions, a gate electrode provided on the substrate so as to cover the channel region, and a pair of diffusion suppressing regions provided in the substrate respectively at both lateral ends of the channel region, each of the diffusion suppressing regions containing an electrically inert element that suppresses a diffusion of a dopant element therethrough.