Substrate-triggered ESD circuit by using triple-well

Details Substrate-triggered ESD circuit by using triple-well Substrate-triggered ESD circuit by using triple-well

2006-09-12

2006-09-12

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S056000, C361S111000

Reexamination Certificate

active

07106568

ABSTRACT:
An electrostatic discharge (ESD) protection circuit formed on a P-type substrate has a first p+diffusion region in the P-type substrate, a N-well in the P-type substrate, a first n+diffusion region in the N-well, a P-well in the N-well, and an n-p-n bipolar junction transistor (BJT) in the P-well. An equivalent circuit between a base and an emitter of the BJT is a diode without connecting to any resistor in parallel.

REFERENCES:
patent: 2002/0181177 (2002-12-01), Ker et al.

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