BUSTLE: a new circuit simulation tool using asymptotic waveform evaluation and piece-wise linear approach

BUSTLE, a new general purpose circuit simulation program is developed especially for the analysis of VLSI circuits. BUSTLE uses Asymptotic Waveform Evaluation (AWE), which is a new method to analyze linear(ized) circuits, and PWL approach for the I'epresentation of nonlinear devices. AWE employs a form of Fade approximation rather than numerical integration to approximate the behavior of linear(ized) circuits in either the time or the frequency domain. AWE is extended to match both derivative and integral moments to overcome the unstability problem.