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Waveform relaxation with overlapping based partitioning for fast transient simulation of package/board power distribution networks

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2 Author(s)
Sourajeet Roy ; Dept. of Electrical and Computer Engineering, University of Western Ontario, London, Ontario, Canada ; Anestis Dounavis

Modeling of power distribution networks in electronic packages requires the two dimensional discretization of the distributed power/ground planes which can be computationally expensive. Recently, the waveform relaxation algorithm has been proposed for fast transient simulation of power/ground planes. However, due to the strong coupling of each node in a two dimensional (2D) physical space, the relaxation iterations exhibit slow convergence and special techniques need to be adopted to ensure efficient convergence. In this work, a novel waveform relaxation algorithm based on physically partitioning the power/ground plane into smaller overlapping subcircuits is presented. The overlap between the subcircuits provides greater exchange of information per iteration leading to accelerated convergence of the waveform relaxation algorithm. A numerical example has been provided to illustrate the validity of the proposed algorithm over full SPICE simulations.

Published in:

2012 IEEE 21st Conference on Electrical Performance of Electronic Packaging and Systems

Date of Conference:

21-24 Oct. 2012