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:
Feb. 04, 2003
Filed:
Mar. 31, 1997
Applicant:
Inventors:
Hoang P. Nguyen, Fort Collins, CO (US);
John D. Walker, Colorado Springs, CO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/20 ;
U.S. Cl.
CPC ...
H02H 3/20 ;
Abstract
An ESD protection system that makes use of several different types of over-voltage protection devices provides ESD conduction paths between different power lines. For example, the system may employ shunt diodes between the ground lines of the different power supplies and between IC pads and power supply lines; SCR protection between IC pads and ground; and thick field device protection between different power supply V lines. In this way, a conduction path for an ESD event between two circuit elements may be implemented using the device whose switching characteristics are best suited to that application.