Tester Retargetable Patterns

  • Authors:
  • Rohit Kapur;T. W. Williams

  • Affiliations:
  • -;-

  • Venue:
  • ITC '01 Proceedings of the 2001 IEEE International Test Conference
  • Year:
  • 2001

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Abstract

The industry is scrambling to prevent a potentialexplosion in nanometer technology test costwhere the cost to test a device is closing in onthe cost to manufacture it. Across the testindustry, entire methodologies are being re-addressed,tester costs are being scrutinized, andtest vector count is being reduced. In this paper,a new concept is presented that allows forlowering the cost of test by utilizing the testerresources more efficiently. The solutionpresented brings together an existing concept ofbeing able to reconfigure scan chains withmethods that allow the same test pattern data tobe applicable for all configurations. A data-modelis created to emphasize the use of suchtechnology. The concepts developed in this paperare compatible with other test cost reductionmethods.