Patent ID: 6693843
Filing Date: 2004-02-17
Classification: G11C

Abstract:
A wordline compensation circuit responsive to an array threshold voltage, the circuit comprising:an array threshold voltage (â€œVTâ€ ) monitor; a wordline on voltage (â€œVppâ€ ) generator in signal communication with said threshold voltage monitor for providing a wordline on voltage responsive to a change in the monitored array threshold voltage; a wordline off voltage (â€œVWLLâ€ ) generator in signal communication with said threshold voltage monitor for providing a wordline off voltage responsive to a change in the monitored array threshold voltage; and at least one of a wordline on reference voltage generator and a wordline off reference voltage generator in signal communication with said array threshold voltage monitor for providing at least one of a variable wordline on reference voltage (â€œVPPREFâ€ ) and a variable wordline off reference voltage (â€œVWLLREFâ€ ), respectively, to at least one of said wordline on voltage generator and said wordline off voltage generator, respectively.