Electrostatic discharge circuit

Details Electrostatic discharge circuit Electrostatic discharge circuit

2009-06-25

2011-10-11

Nguyen, Danny (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

C361S111000

Reexamination Certificate

active

08035937

ABSTRACT:
An electrostatic discharge device has relatively superior characteristics for protecting a gate insulation layer of an input buffer transistor of a semiconductor device from static electricity while minimizing signal delay. The electrostatic discharge circuit includes a main electrostatic discharge section configured to discharge static electricity inputted to an input/output pad to at least one voltage line, an input impedance section configured to adjust an amount of current flowing from the input/output pad depending upon a frequency of an input signal of the input/output pad, an auxiliary electrostatic discharge section connected to the input impedance section and configured to discharge the static electricity inputted to the input/output pad to the at least one voltage line, and an input buffer connected between the auxiliary electrostatic discharge section and an internal circuit.

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Notice of Preliminary Rejection issued from Korean Intellectual Property Office on Apr. 21, 2010.

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