Electrostatic discharge protection circuit

Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07072158

ABSTRACT:
An electrostatic discharge (ESD) protection circuit is disclosed, which comprises a first common conductive line, a first diode, a P-type transistor and an N-type transistor. A cathode of the first diode is coupled to the first common conductive line, and an anode of the first diode is coupled to the first system voltage. A first S/D terminal and a gate terminal of the first P-type transistor is coupled to the first system voltage and a second S/D terminal of the first P-type transistor is coupled to the first pad. A first S/D terminal of the first N-type transistor is coupled to the first common conductive line, a gate terminal of the first N-type transistor is coupled to the first ground voltage, and a second S/D terminal of the first N-type transistor is coupled to the first pad. Therefore, the present invention can efficiently introduce the ESD pulse from a pad to a system voltage or another pad for protecting the internal circuit from damage.

REFERENCES:
patent: 4858055 (1989-08-01), Okitaka
patent: 5631793 (1997-05-01), Ker et al.
patent: 6256184 (2001-07-01), Gauthier Jr. et al.
patent: 6327126 (2001-12-01), Miller et al.
patent: 6351364 (2002-02-01), Chen et al.
patent: 6724603 (2004-04-01), Miller et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

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

     

Profile ID: LFUS-PAI-O-3576466

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.