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:
Apr. 18, 2000
Filed:
Jan. 21, 1999
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361111 ; 361 56 ; 361220 ;
Abstract
A protection circuit using point discharge suitable for use in an integrated circuit, protects circuit from damage by electrostatic discharge. The integrated circuit at least comprises an input/output port, a high voltage line, and a low voltage line. The protection circuit has point discharge structures at two ends of the input/output ports, respectively corresponding to the point discharge structures of the high and low voltage lines, and is suitable for use in all semiconductor fabricating processes.