Minimizing Power Consumption in Scan Testing: Pattern Generation and DFT Techniques

  • Authors:
  • Kenneth M. Butler;Jayashree Saxena;Tony Fryars;Graham Hetherington

  • Affiliations:
  • Texas Instruments Inc., Dallas;Texas Instruments Inc., Dallas;Texas Instruments Inc., Dallas;Texas Instruments Inc., Dallas

  • Venue:
  • ITC '04 Proceedings of the International Test Conference on International Test Conference
  • Year:
  • 2004

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Abstract

It is a well-known phenomenon that test power consumption may exceed that of functional operation. ICs have been observed to fail at specified minimum operating voltages during structured at-speed testing while passing all other forms of test. Methods exist to reduce power without dramatically increasing pattern volume for a given coverage. We present case study information on ATPG- and DFT-based solutions for test power reduction.