Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-06-19
2008-12-02
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S535000, C327S537000
Reexamination Certificate
active
07459958
ABSTRACT:
A circuit and a method for adjusting the performance of an integrated circuit, the circuit includes: first and second sets of FETs having respective first and second threshold voltages, the first threshold voltage different from the second threshold voltage; a first monitor circuit containing at least one FET of the first set of FETs and a second monitor circuit containing at least one FET of the second set of FETs; a compare circuit adapted to generate a compare signal based on a performance measurement of the first monitor circuit and a performance measurement of the second monitor circuit; and a control unit adapted to generate a control signal to a voltage regulator based on the compare signal, the voltage regulator adapted to supply a bias voltage to wells of FETs of the second set of FETs, the value of the bias voltage based on the control signal.
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Fet Modeling for Circuit Simulation by Dileep Divekar□□http://books.google.com/books?id=QdtbOnfOeEQC&pg=PP11&dg=5.9++voltage+shift&sig=bkHISy9OW5qq02vUPtwsn8HNplk#PPA75,M1.
Barrows Corey Kenneth
Kemerer Douglas W.
Shuma Stephen Gerard
Stout Douglas Willard
Strohacker Oscar Conrad
Cole Brandon S
International Business Machines - Corporation
LeStrange Michael J.
Schmeiser Olsen & Watts
Wells Kenneth B.
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