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:
Oct. 11, 1977
Filed:
May. 19, 1976
Applicant:
Inventor:
Armand P Ferro, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 38 ; 357-4 ; 357 30 ; 357 51 ; 357 86 ;
Abstract
A light triggered thyristor is provided including an electrode surrounding a gate area which is sensitive to radiation impinging thereon to turn on the device. Trimable resistor means are connected between said electrode and the cathode of the device to allow adjustment of the turn-on time of the device to compensate for processing tolerances during the manufacture of the device.