Computation of yield-optimized Pareto fronts for analog integrated circuit specifications

  • Authors:
  • Daniel Mueller-Gritschneder;Helmut Graeb

  • Affiliations:
  • Technische Universitaet Muenchen, Germany;Technische Universitaet Muenchen, Germany

  • Venue:
  • Proceedings of the Conference on Design, Automation and Test in Europe
  • Year:
  • 2010

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Abstract

For any analog integrated circuit, a simultaneous analysis of the performance trade-offs and impact of variability can be conducted by computing the Pareto front of the realizable specifications. The resulting Specification Pareto front shows the most ambitious specification combinations for a given minimum parametric yield. Recent Pareto optimization approaches compute a so-called yield-aware specification Pareto front by applying a two-step approach. First, the Pareto front is calculated for nominal conditions. Then, a subsequent analysis of the impact of variability is conducted. In the first part of this work, it is shown that such a two-step approach fails to generate the most ambitious realizable specification bounds for mismatch-sensitive performances. In the second part of this work, a novel single-step approach to compute yield-optimized specification Pareto fronts is presented. Its optimization objectives are the realizable specification bounds themselves. Experimental results show that for mismatch-sensitive performances the resulting yield-optimized specification Pareto front is superior to the yield-aware specification Pareto front.