Electricity: electrical systems and devices – Safety and protection of systems and devices – Transient responsive
Reexamination Certificate
2008-07-01
2008-07-01
Sherry, Michael J (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transient responsive
C361S056000, C361S091300
Reexamination Certificate
active
07394638
ABSTRACT:
The embodiments of the present invention introduced and taught herein are directed to a whole-chip ESD protection arrangement that is independent of relative supply rail voltage and supply sequencing, thereby enabling ESD conduction path during ESD event and isolating the ESD conduction path during the power up and power down modes of the chip. An embodiment of the present invention uses the bi-directional R-C clamp with transistorized arrangements between powered rails and avoids the drawback of using uni-directional Clamps or diode array for clamping that consumes large silicon area, requires power sequencing and is prone to noise coupling between power rails.
REFERENCES:
patent: 5532626 (1996-07-01), Khayat
patent: 5886862 (1999-03-01), Anderson et al.
patent: 2004/0125521 (2004-07-01), Salling et al.
Ming-Dou Ker, Whole-Chip ESD Protection Design with Efficient VDD-to-VSS ESD Clamp Circuits for Submicron CMOS VLSI, Jan. 1999, IEEE, vol. 46, No. 1, pp. 173-183.
Ahmad Adeel
Chauhan Rajat
Mai Tien
Sherry Michael J
STMicroelectronics Pvt. Ltd.
LandOfFree
System and method for a whole-chip electrostatic discharge... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for a whole-chip electrostatic discharge..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for a whole-chip electrostatic discharge... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2758755