Incremental Testability Analysis for Partial Scan Selection and Design Transformations

  • Authors:
  • Tianruo Yang;Zebo Peng

  • Affiliations:
  • Department of Computer Science, Linköping University, S-581 83, Linköping, Sweden. tiaya@ida.liu.se;Department of Computer Science, Linköping University, S-581 83, Linköping, Sweden. zpe@ida.liu.se

  • Venue:
  • Journal of Electronic Testing: Theory and Applications - Special issue on the IEEE European Test Workshop
  • Year:
  • 1999

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Abstract

This paper presents an efficient estimation method for incremental testability analysis, which is based partially on explicit testability re-calculation and partially on gradient techniques. The analysis results have been used successfully to guide design transformations and partial scan selection. Experimental results on a variety of benchmarks show that the quality of our incremental testability analysis is similar to those of the conventional explicit testability re-calculation methods and the technique can be used efficiently for improving thetestability of a design during the high-level test synthesis andpartial scan selection processes.