Device to protect a semiconductor device from electrostatic...

Details Device to protect a semiconductor device from electrostatic... Device to protect a semiconductor device from electrostatic...

2008-02-14

2010-10-26

Leja, Ronald W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

Reexamination Certificate

active

07821752

ABSTRACT:
A device to protect a semiconductor device from electrostatic discharge is disclosed. In order to protect an internal circuit from electrostatic discharge, the semiconductor electrostatic protection device includes a transfer unit for transferring static electricity inputted to an input/output terminal to a first power line. A driving unit is also included for outputting a driving voltage corresponding to a potential difference between the input/output terminal and the first power line. Finally, a discharge unit for discharging the static electricity inputted to the input/output terminal to a second power line by way of the driving voltage is provided. The semiconductor electrostatic protection device prevents damage to an internal circuit due to the voltage drop of an intermediate medium by reducing the intermediate medium on a static electricity discharge path.

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