Effect of inductance on interconnect propagation delay in VLSI circuits

Abstract

In the paper the analytical formula for the propagation delay of CMOS gate driving a distributed RLC line was derived. It is shown that obtained formula is more accurate in some cases than used in literature. The main idea of the presented approach is based on the expansion of the voltage unit step response into Taylor series. The coefficients of this expansion are calculated in symbolical manner in frequency domain as the moments determined for infinite frequency.