Functional correlation analysis in crosstalk induced critical paths identification

  • Authors:
  • Tong Xiao;Malgorzata Marek-Sadowska

  • Affiliations:
  • Sun Microsystems, Inc., San Antonio Road, Palo Alto, CA;Dept. of Electrical & Computer Eng., University of California, Santa Barbara, Santa Barbara, CA

  • Venue:
  • Proceedings of the 38th annual Design Automation Conference
  • Year:
  • 2001

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Abstract

In deep submicron digital circuits capacitive couplings make delay of a switching signal highly dependent on its neighbors switching times and switching directions. A long path may have a large num-ber of coupling neighbors with difficult to determine interdepen-dencies. Ignoring the mutual relationship among the signals may result in a very pessimistic estimation of circuit delay. In this paper, we apply efficient functional correlation analysis techniques to identify critical paths caused by crosstalk delay effects. We also discuss applications to static timing optimization. Experiments demonstrate efficacy of the proposed technique.