A Yield Model for Integrated Circuits and its Application to Statistical Timing Analysis

  • Authors:
  • Farid N. Najm;Noel Menezes;Imad A. Ferzli

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

  • Venue:
  • IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
  • Year:
  • 2007

Quantified Score

Hi-index 0.03

Visualization

Abstract

A model for process-induced parameter variations is proposed, combining die-to-die, within-die systematic, and within-die random variations. This model is put to use toward finding suitable timing margins and device file settings, to verify whether a circuit meets a desired timing yield. While this parameter model is cognizant of within-die correlations, it does not require specific variation models, layout information, or prior knowledge of intrachip covariance trends. The approach works with a "generic" critical path, leading to what is referred to as a "process-specific" statistical-timing-analysis technique that depends only on the process technology, transistor parameters, and circuit style. A key feature is that the variation model can be easily built from process data. The derived results are "full-chip," applicable with ease to circuits with millions of components. As such, this provides a way to do a statistical timing analysis without the need for detailed statistical analysis of every path in the design