J. Kim et Dhc. Du, PERFORMANCE OPTIMIZATION BY GATE SIZING AND PATH SENSITIZATION, IEEE transactions on computer-aided design of integrated circuits and systems, 17(5), 1998, pp. 459-462
In the circuit model where outputs are latched and input vectors are s
uccessively applied at inputs, the gate resizing approach to reduce th
e delay of the critical path may not improve the performance. Since th
e clock period is determined by delays of both long and short paths in
the combinational circuit, gates lying in sensitizable long and short
paths can be selected for resizing. For feasible settings of the cloc
k period, new algorithms and corresponding gate selection methods for
resizing are proposed in this paper. Our algorithms are tested on ISCA
S'85 benchmark circuits and experimental results show that the clock p
eriod ran be optimized efficiently with our gate selection methods.