Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Reexamination Certificate
2006-05-02
2006-05-02
Pert, Evan (Department: 2826)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
C257S355000
Reexamination Certificate
active
07038898
ABSTRACT:
An electrostatic discharge (ESD) protection circuit includes a diode that is connected between a pad and a power supply line, and a negative protection circuit that is connected between the pad and a ground line. The negative protection circuit allows the pad voltage to go below ground during normal (non-ESD) operation, and provides adequate ESD protection during an ESD event.
REFERENCES:
patent: 6108181 (2000-08-01), Gerosa
patent: 6163199 (2000-12-01), Miske et al.
Ker et al., “ESD Protection for IC with Power-down-mode Operation”, May 2004, Proceedings of the 2004 International Symposium on Circuits and Systems ISCAS, vol. 2, pp. 717-720.
National Semiconductor Corporation
Pert Evan
Pickering Mark C.
LandOfFree
ESD protection circuit that can tolerate a negative input... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with ESD protection circuit that can tolerate a negative input..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ESD protection circuit that can tolerate a negative input... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3544483