Device and method for electrostatic discharge protection of a ci

Details Device and method for electrostatic discharge protection of a ci Device and method for electrostatic discharge protection of a ci

1997-02-19

1999-03-30

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361111, H02H 900

Patent

active

058896449

ABSTRACT:
An circuit device includes a stack of electrostatic discharge protection devices shared between a plurality of contact pads on the device. In addition, each contact pad is coupled to its own individual protection device. Together, the individual protection devices and the stack establish a trip point for shunting a charge from the contact pads in the event that any of the pads reach a voltage potential greater than the trip point. In doing so, the stack protects internal operations circuits from damage. At the same time, the shared stack conserves die space.

REFERENCES:
patent: 5293057 (1994-03-01), Ho et al.
patent: 5315255 (1994-05-01), Bettinger
patent: 5654862 (1997-08-01), Worley et al.

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