Defect Detection using Power Supply Transient Signal Analysis

  • Authors:
  • Amy Germida;Zheng Yan;James F. Plusquellic;Fidel Muradali

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ITC '99 Proceedings of the 1999 IEEE International Test Conference
  • Year:
  • 1999

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Abstract

Transient Signal Analysis is a digital device testing methodthat is based on the analysis of voltage transients at multiple test points. The power supply transient signals of an8-bit multiplier are analyzed using both hardware and simulations experiments. The small signal variations generated at these test points are analyzed in both the time andfrequency domain. A simple statistical procedure is presented that captures the variation introduced by defectswhile attenuating those variations introduced by processvariations. The results of the analysis show that it is possible to distinguish between defect-free and defective devicesin both simulations and hardware.