Patent · US Expired

ESD protection circuit

US7002220B1 · kind B1 · utility

9Cited by
19References
42Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 26, 2003
Grant dateFeb 21, 2006
Priority date
Expiry dateAug 7, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D89/601
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

An electrostatic discharge (ESD) protection circuit is provided for protecting transistors of an integrated circuit (IC) from ESD. The ESD protection circuit includes n transistors with n gates and less than n drains where n is an integer greater than 1. At least m resistors have first ends that communicate with at least one of the transistors of the IC, a blocking capacitor of the IC, an input pad of the IC, and an output pad of the IC, and second ends that connect to corresponding drain terminals of said drains where m is an integer greater than or equal to n/2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.