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. 18, 1979
Filed:
Aug. 23, 1978
Applicant:
Inventor:
Eugene Greenstein, Southfield, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
2957 / ; 29591 ; 2961 / ;
Abstract
A monolithic integrated circuit structure having an integral high value surge protection resistor of polycrystalline silicon on a thermally grown thick silicon dioxide plateau having no surface diffusion regions thereunder. The structure can be made by merely adding intermediate steps to existing integrated circuit processing. It is capable of absorbing transients of hundreds of volts.