| A method is presented for analysis of VLSI interconnects which contain both lossy coupled transmission lines and nonlinear components. An equivalent time domain macro-model is derived for the linear subnetworks which contain lossy coupled transmission lines. The macromodel takes the form of a set of ordinary differential equations. The method takes full advantage of the Asymptotic Waveform Evaluation technique which offers two to three orders of magnitude speedup relative to other methods with comparable accuracy. In addition, it does not require explicit evaluation of the dominant poles of the network. The proposed technique has been implemented within the framework of an existing conventional circuit simulator, Hspice. |
