Semi-analytical techniques for substrate characterization in the design of mixed-signal ICs

  • Authors:
  • Edoardo Charbon;Ranjit Gharpurey;Alberto Sangiovanni-Vincentelli;Robert S. Meyer

  • Affiliations:
  • Cadence Design Systems Inc., San Jose, CA;Texas Instruments Inc., Dallas, TX;Department of EECS, University of California, Berkeley, CA;Department of EECS, University of California, Berkeley, CA

  • Venue:
  • Proceedings of the 1996 IEEE/ACM international conference on Computer-aided design
  • Year:
  • 1997

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Abstract

A number of methods are presented for highly efficient calculation of substrate current transport. A three-dimensional Green Function based substrate representation, in combination with the use of the Fast Fourier Transform, significantly speeds up the computation of sensitivities with respect to all parameters associated with a given architecture. Substrate sensitivity analysis is used in a number of physical optimization tools, such as placement and trend analysis for the estimation of the impact of technology migration and/or layout re-design.