Programmable electrostatic discharge (ESD) protection device

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

C361S111000

Reexamination Certificate

active

07660086

ABSTRACT:
An improved ESD protection device, integrated circuit and method for programmably altering a sensitivity of the ESD protection device is provided herein. More specifically, an active shunt ESD protection device is provided with an improved trigger circuit design. The improved trigger circuit design enables the sensitivity of the ESD protection device to be altered by providing a variety of programmable elements for adjusting an RC time constant of a slew rate detector contained therein. The programmable elements allow the RC time constant to be altered at the wafer or package level, and avoid the significant time and cost typically associated with conventional trial-and-error adjustment procedures.

REFERENCES:
patent: 5463520 (1995-10-01), Nelson
patent: 6430016 (2002-08-01), Marr
patent: 6683767 (2004-01-01), Ito et al.
patent: 6768617 (2004-07-01), Marr
patent: 7339770 (2008-03-01), Maloney et al.
patent: 2002/0126430 (2002-09-01), Roohparvar
patent: 2003/0043523 (2003-03-01), Hung et al.
patent: 2003/0202299 (2003-10-01), Maloney et al.
patent: 2004/0233595 (2004-11-01), Ker et al.
patent: 2005/0078419 (2005-04-01), Stockinger et al.
patent: 2005/0128665 (2005-06-01), Roohparvar
patent: 2005/0270714 (2005-12-01), Huang et al.
Li et al., “Substrate Modeling and Lumped Substrate Resistance Extraction for CMOS ESD/Latchup Circuit Simulation,” Proceedings of the 36th ACM/IEEE Conference on Design Automation, Jun. 1999, pp. 549-554.
Ker et al., “ESD Protection Design for Mixed-Voltage I/O Buffer with Substrate-Triggered Circuit,” IEEE Transactions on Circuits and Systems—I: Regular Papers, vol. 52, No. 1, Jan. 2005, pp. 1-10.
International Search Report, PCT/US2007/069451, mailed Dec. 5, 2007.
International Written Opinion of International Searching Authority, dated Dec. 10, 2008 for International Appplication No. PCT/US20071069451; 5 pages.

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

Programmable electrostatic discharge (ESD) protection device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Programmable electrostatic discharge (ESD) protection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable electrostatic discharge (ESD) protection device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4164817

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