Statistical timing analysis with two-sided constraints

  • Authors:
  • K. R. Heloue;F. N. Najm

  • Affiliations:
  • Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada;Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

  • Venue:
  • ICCAD '05 Proceedings of the 2005 IEEE/ACM International conference on Computer-aided design
  • Year:
  • 2005

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Abstract

Based on a timing yield model, a statistical static timing analysis technique is proposed. This technique preserves existing methodology by selecting a "device file setting" that takes into account within-die statistical variations, and with which to run traditional static timing analysis in order to meet the desired yield. Using process-specific "generic paths" representing critical paths in a given process technology, our approach can be used early in the design process, most importantly during the pre-placement phase. Within-die variations are taken care of using a simple model that assumes positive correlation, which leads to upper and lower bounds on the timing yield. Our approach also handles both setup and hold timing constraints.