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:
May. 08, 1990
Filed:
May. 10, 1984
Applicant:
Inventor:
Masafumi Shimbo, Tokyo, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 237 ; 357-2 ; 357-4 ; 357 234 ;
Abstract
According to the present invention, a thin film transistor of a vertical type in which an electric current flows in a vertical direction not parallel to a base plate surface. A high resistance semiconductor thin film, a gate insulated film and gate electrode are sequentially shaped on a side surface of drain and source main electrodes stacked as multi-layers via an insulated film, whereby a channel length L is determined by a thickness of said insulated film.