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:
Nov. 09, 1993
Filed:
Jul. 27, 1990
Applicant:
Inventor:
Richard K Childers, San Mateo County, CA (US);
Assignee:
Electromer Corporation, Palo Alto, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
361127 ; 361117 ; 338 21 ;
Abstract
A material and device for electronic circuitry that provides protection from fast transient over-voltage pulses. Conductive particles are dispersed in an insulating matrix to provide material having foldback switching characteristics. The foldback switching characteristics of the material are determined by the spacing between the conductive particles (which must be at least 1000 Angstroms) as well as by the electrical properties of the insulating matrix.