Protection circuit against electrostatic discharge in...

Details Protection circuit against electrostatic discharge in... Protection circuit against electrostatic discharge in...

2008-07-29

2008-07-29

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

C361S111000

Reexamination Certificate

active

07405915

ABSTRACT:
An electrostatic discharge protection circuit for use in a semiconductor device includes an electrostatic signal discharge unit for discharging an electrostatic signal; a first electrostatic detection voltage supplying unit for generating an electrostatic detection voltage in response to an alternating current component of the electrostatic signal; a driving unit for generating a driving voltage in response to the electrostatic detection voltage in order to drive the electrostatic signal discharge unit; and a second electrostatic detection voltage supplying unit enabled in response to the driving voltage for continuously supplying the electrostatic detection voltage to the driving unit in response to a direct current component of the electrostatic signal.

REFERENCES:
patent: 5978192 (1999-11-01), Young et al.
patent: 6919602 (2005-07-01), Lin et al.
patent: 6965503 (2005-11-01), Connor et al.
patent: 6989979 (2006-01-01), Tong et al.
patent: 6989980 (2006-01-01), Kitagawa
patent: 7079369 (2006-07-01), Hulfachor et al.
patent: 2007/0091530 (2007-04-01), Chen
patent: 10-0189993 (1999-01-01), None

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