Patent ID: 6405347
Filing Date: 2002-06-11
Classification: G06F

Abstract:
A method for determining a maximum FET width and a minimum FET width for a feedback FET on a precharge node, comprising the steps of:identifying a precharge node; detecting a feedback FET tree on the precharge node; evaluating at least one NFET tree, in accordance with a first circuit model, to determine an effective NFET width (N) of FETs in the at least one NFET tree; computing a minimum value of a PFET width (P) for the feedback FET tree, for a specified N:P ratio; evaluating the at least one NFET tree, in accordance with a second circuit model, to determine an effective NFET width (N2) of the FETs in the at least one NFET tree; and computing a maximum value of an effective PFET width (P2) for the feedback FET tree, for a specified N2:P2 ratio.