Detecting Delay Faults using Power Supply Transient Signal Analysis

  • Authors:
  • Abhishek Singh;Chintan Patel;Shirong Liao;Jim Plusquellic;Anne Gattiker

  • Affiliations:
  • -;-;-;-;-

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

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Abstract

A delay-fault testing strategy based on the analysis ofpower supply transient signals is presented. The method isan extension to a Go/No-Go device testing method calledTransient Signal Analysis (TSA) [1]. TSA detects defectsthrough the analysis of a set of power supply transientwaveforms in the time or frequency domain, e.g., Fourierphase components. A recent extension to TSA demonstrateda correlation between the VDDT Fourier phasecomponents and path delays in defect-free devices [2]. Themethod proposed here is able to detect increases in delaydue to resistive shorting and open defects using a similartechnique. In particular, simulation results show that adelay defective device can be distinguished from adefect-free device through an anomaly in the Fourier phasecorrelation profile of the device.