Protective circuit for semiconductor device

Details Protective circuit for semiconductor device Protective circuit for semiconductor device

2005-12-27

2005-12-27

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S056000

Reexamination Certificate

active

06980409

ABSTRACT:
A high impedance can be maintained at a back gate of a MOS transistor constituting a CMOS integrated circuit when power is not supplied, and is switched to an impedance lower than the impedance in use of the CMOS integrated circuit by a switch driven by a power supply of the CMOS integrated circuit. Thus, it is possible to prevent surge breakdown and electrostatic breakdown, and to prevent occurrence of latch up breakdown.

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