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. 24, 2004
Filed:
Aug. 05, 2002
Applicant:
Inventors:
Assignee:
Winbond Electronics Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/974 ;
U.S. Cl.
CPC ...
H01L 2/974 ;
Abstract
The present invention reveals an electrostatic discharge protection apparatus including a silicon controlled rectifier, a triggering voltage adapter network and a holding voltage adapter network. Additionally, the triggering voltage adapter network and the holding voltage adapter network are coupled to the silicon controlled rectifier. The present invention can change the characteristic of current vs. voltage by adjusting the triggering voltage and the holding voltage of the silicon controlled rectifier to meet the special requirement of various chips, and effectively prevent the chips from being damaged caused by the electrostatic discharging.