VDDCORE to VSS ESD clamp made of core device

Details VDDCORE to VSS ESD clamp made of core device VDDCORE to VSS ESD clamp made of core device

2006-05-30

2006-05-30

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

07054122

ABSTRACT:
The present invention comprises an ESD clamp circuit used in an integrated circuit with plural power supply. The ESD clamp circuit, connected between core voltage source and low voltage source, is fabricated by a process which fabricates core circuit. The ESD clamp circuit has a low trigger voltage, so it can conduct large current to protect the core circuit before the core circuit is damaged.

REFERENCES:
patent: 6384628 (2002-05-01), Lacey et al.
patent: 6624998 (2003-09-01), May et al.

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