Semiconductor integrated circuit which prevents malfunctions cau

Details Semiconductor integrated circuit which prevents malfunctions cau Semiconductor integrated circuit which prevents malfunctions cau

1996-03-20

1997-03-18

Cunningham, Terry

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327537, 327546, G05F 302

Patent

active

056126433

ABSTRACT:
In a semiconductor integrated circuit device, a MOS transistor has a relatively high built-in threshold, and in operation, a substrate bias is applied to the MOS transistor so as to cause the MOS transistor to forcibly have a reduced threshold, so that the MOS transistor operates at a high speed with the reduced threshold. When noise is detected, application of the substrate bias is stopped so that the MOS transistor restores the relatively high built-in threshold, and simultaneously, the MOS transistor is put in a standby condition, so that a malfunction can be prevented with the relatively high built-in threshold.

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