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. 15, 1987
Filed:
May. 21, 1984
Applicant:
Inventor:
Teruo Kusaka, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 38 ; 357 235 ; 357 43 ; 357 52 ; 357 54 ;
Abstract
A planar type thyristor has a semiconductor substrate of one conductivity type, a first and second regions of other conductivity type formed in the substrate and a third region of the one conductivity type formed in one of the first and second regions. An electrically floating electrode is formed on the substrate between the first and second region via an insulator film and a control electrode is formed on the floating electrode via another insulator film. A gate trigger current is controlled by a voltage applied to the control electrode.