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. 02, 1999
Filed:
Nov. 18, 1997
Applicant:
Inventor:
Victer Chan, San Jose, CA (US);
Assignee:
LSI Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361111 ; 361 56 ; 324686 ; 324713 ;
Abstract
Circuitry for testing and comparing ESD protection structures is provided on a semiconductor integrated circuit. Analysis of charge transmitted to a test capacitor on board the chip provides for improved accuracy in evaluating performance of the ESD protection structure. Moreover, multiple ESD structures can be implemented and accurately compared to one another on a test chip as described. The disclosed methods and apparatus are usefull in reduced turn-around time and more accurate evaluation and comparison of ESD protection structures in integrated circuits.