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. 12, 1996
Filed:
Feb. 17, 1994
Applicant:
Inventor:
Gregg D Croft, Palm Bay, FL (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05F / ; H02H / ;
U.S. Cl.
CPC ...
361212 ; 361220 ; 361118 ;
Abstract
An SCR clamp provides a low impedance discharge path for static charges across on IC's pins. The SCR clamp cathode, cathode, gate anode, and anode gate float when the protected IC is disconnected from its associated circuit elements. Under this condition, the SCR clamp can be turned on at the low Vh and Ih levels of the SCR, allowing the clamp to operate to discharge static electricity at the low voltage determined by SCR junction biases.