Multi-stack power supply clamp circuitry for electrostatic...

Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means

Reexamination Certificate

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C361S111000, C361S118000

Reexamination Certificate

active

10954860

ABSTRACT:
A multi-stack power supply clamp circuit for providing electrostatic discharge (ESD) protection to enhance performance of advanced submicron processes is provided. The clamp circuit includes a bias voltage generator with low leakage and high current drive capabilities, and means to lighten current load on the voltage generator through reduced gate leakage. The bias voltage generator has includes a differential amplifier. The multi-stack clamp circuit provides voltage-tolerant ESD protection with optimized leakage, reduced sensitivity to operating conditions, and tolerance of increased gate current in new process technologies.

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