Electrostatic discharge protection circuit

Details Electrostatic discharge protection circuit Electrostatic discharge protection circuit

2006-09-05

2006-09-05

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

Reexamination Certificate

active

07102862

ABSTRACT:
Circuits are disclosed for protecting internal circuitry of a semiconductor chip from increased power supply voltages due to electrostatic discharge (EDS). One example circuit includes a trigger circuit including a transistor and a capacitor arranged in series between DC pads. The trigger circuit generates a trigger signal to a discharge circuit connected between the DC pads to shunt charge from one of the DC pads to the other. The RC delay associated with the transistor and capacitor of the trigger circuit may be designed such that the trigger circuit generates the trigger signal in response to an ESD event, but not in response to high positive spikes on one of the DC pads during normal operation.

REFERENCES:
patent: 5450267 (1995-09-01), Diaz et al.
patent: 5886862 (1999-03-01), Anderson et al.
patent: 5907464 (1999-05-01), Maloney et al.
patent: 5946177 (1999-08-01), Miller et al.
patent: 6008970 (1999-12-01), Maloney et al.
patent: 6069782 (2000-05-01), Lien et al.
patent: 6320735 (2001-11-01), Anderson
patent: 6356427 (2002-03-01), Anderson
patent: 6369998 (2002-04-01), Anderson
patent: 6400540 (2002-06-01), Chang
patent: 6455902 (2002-09-01), Voldman
patent: 6674622 (2004-01-01), Yu et al.
patent: 6862161 (2005-03-01), Woo
R. Merrill et al., “ESD Design Methodology.” EOS/ESD Symposium Proceedings, 1993, pp. 223-237.
K. Seshan et al, “The Quality and Reliability of Intel's Quarter Micron Process,” Intel Technology Journal Q3, 1998, pp. 1-11.

Affiliated with

Also associated with

Rating

Electrostatic discharge protection circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrostatic discharge protection circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrostatic discharge protection circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3531149