Description
Metrics of energy, area, and time are defined for a graph-theoretic model of VLSI computation. A number of "technological constant factors" are introduced in order to take into account the effects of using different technologies for implementing logic circuits. Different constant factors are seen to be appropriate for different logic families. We examine seven such families: NMOS, CMOS, CMOS-SOS, I(squared)L, GaAs HEMT, Jj-CIL, and Jj-CS.