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:
Mar. 22, 1988
Filed:
Mar. 31, 1986
Applicant:
Inventors:
Jean N Perbet, Gif sur Yvette, FR;
Bruno Mourey, Boulogne Billancourt, FR;
Michel Graciet, Villeron sur Yvette, FR;
Michel DeFrance, La Ville du Bois, FR;
Patrick Truffer, Les Ulis, FR;
Nicolas Szylo, Limours, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437101 ; 437225 ; 437245 ; 437 15 ; 437904 ; 357 15 ; 357 58 ; 357 59 ;
Abstract
In a method of fabrication of non-linear control elements for a flat display screen of the liquid crystal type, successive layers of n.sup.30 doped amorphous semiconductor, of undoped amorphous semiconductor and of metal are deposited on a substrate, whereupon the control elements are formed by masking and etching. The flanks of the control elements are then isolated, whereupon the electrodes and control leads are formed by deposition and etching.