Electrostatic discharge protection device comprising several...

Details Electrostatic discharge protection device comprising several... Electrostatic discharge protection device comprising several...

2006-09-26

2006-09-26

Leja, Ronald (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

Reexamination Certificate

active

07113377

ABSTRACT:
An electrostatic discharge protection device comprises several thyristors which are connected in parallel between two nodes of an electrical circuit. It also includes a control circuit having an output connected to the control trigger terminal input of each of the thyristors. In response to an abnormal variation in a voltage between the two nodes being detected, the control circuit initiates a triggering current on the output so as to trigger the thyristors to conduct current between the two nodes. Preferably, the thyristors are arranged in a semiconductor substrate so as to have low hold voltages and small geometrical dimensions.

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Duvvury, et al., “A Synthesis of ESD Input Protection Scheme”, Journal of Electrostatics, 29 (1992), pp. 1-19, no month.

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