Fast power grid simulation

  • Authors:
  • Sani R. Nassif;Joseph N. Kozhaya

  • Affiliations:
  • IBM Austin Research Laboratory, 11501 Burnet Rd., Austin, TX;ECE Department, University of Illinois, 1308 W. Main St., Urbana, IL

  • Venue:
  • Proceedings of the 37th Annual Design Automation Conference
  • Year:
  • 2000

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Abstract

The decrease in feature size and added chip functionality in large sub-micron integrated circuits demand larger grids for power distribution. Since power grids are performance limiting factors [1, 2, 3], then their analysis is important in order to (1) predict the performance and (2) improve the performance if necessary. Thus, there is a clear need for new efficient, in terms of both execution time and memory, techniques for power grid analysis.This paper discusses the modeling of power grids and proposes a new PDE-like multigrid method for the simulation of power grids. The proposed method is very efficient and suitable for both DC and transient simulation of power grids.