Abstract

This work describes an efficient method to simulate transient responses of multilayer and multiconductor interconnects having three-dimensional structure. First, the impulse responses between any pair of terminals of lines are obtained by the finite-difference time-domain (FDTD) method, Next, the frequency responses are obtained by the Fourier transform of these transient waveforms. The time-domain models are synthesized from the frequency responses by using the least-square approximation and the complex frequency-hopping technique. Finally, with this model, the transient responses are rapidly simulated by the conventional circuit simulators. In conclusion, the validity of this method is verified by comparison with the time-consuming FDTD simulation.

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