Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1998-02-26
2000-08-01
Cunningham, Terry D.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327534, G05F 302
Patent
active
060972424
ABSTRACT:
A compensation circuit for transistor threshold voltages in integrated circuits is described. The compensation circuit includes a transistor, current source, and gate reference voltage supply. The transistor is biased to provide a well bias voltage, or backgate voltage V.sub.BG, which is coupled to transistors provided on a common integrated circuit. This compensation circuit eliminates the need for gate biasing capacitors, and provides flexibility in setting threshold voltages in low voltage circuits. The gate reference voltage and current source are established to provide a desired backgate voltage V.sub.BG. Compensation circuits are described for both n-channel and p-channel transistors. A memory device is described which includes compensation circuits for controlling threshold voltages of transistors provided therein.
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Ahn Kie Y.
Forbes Leonard
Cunningham Terry D.
Micro)n Technology, Inc.
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