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:
Aug. 31, 1999
Filed:
Dec. 19, 1997
Applicant:
Inventors:
Richard R Siergiej, Harrison City, PA (US);
Anant K Agarwal, Monroeville, PA (US);
Rowland C Clarke, Saltsburg, PA (US);
Charles D Brandt, Mt. Lebanon, PA (US);
Assignee:
Northrop Grumman Corporation, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257285 ; 257263 ; 257264 ; 257266 ; 257267 ; 257 77 ;
Abstract
A static induction transistor having source, drain and gate regions. Channel regions are defined between adjacent gates and a drift region is defined from the ends of the channel regions to the drain. The channel and drift regions have predetermined doping concentrations with the doping concentration of the channel regions being greater than the doping concentration of the drift region.