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. 30, 1994
Filed:
Oct. 15, 1992
Applicant:
Inventor:
Takashi Saitou, Yokohama, JP;
Assignee:
Sankosha Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257355 ; 257175 ; 257481 ; 257482 ; 257603 ;
Abstract
The hold current of a breakover type surge protection device is increased by irradiating the device with .gamma. or x rays so as to form crystal lattice defects in the semiconductor regions thereof.