Process-tolerant test with energy consumption ratio

  • Authors:
  • Bapiraju Vinnakota;Wanli Jiang;Dechang Sun

  • Affiliations:
  • -;-;-

  • Venue:
  • ITC '98 Proceedings of the 1998 IEEE International Test Conference
  • Year:
  • 1998

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Abstract

We develop a new technique for fault detection based on a new metric, the energy consumptionratio(ECR). ECR-based test can detect faults, such asredundant faults, that escape detection with other techniques. Though the ECR is a metric based on the supplycurrent, an analog parameter, it is remarkably tolerant to the impact of process variations. The quality ofECR-based test is demonstrated through extensive simulation on a process offered by MOSIS. We also presenta test generation algorithm for the new test technique.When applied to benchmark circuits, this technique reliably detects a large fraction of the combinationally redundant faults in them.