Precise Test Generation for Resistive Bridging Faults of CMOS Combinational Circuits

  • Authors:
  • Toshiyuki Maeda;Kozo Kinoshita

  • Affiliations:
  • -;-

  • Venue:
  • ITC '00 Proceedings of the 2000 IEEE International Test Conference
  • Year:
  • 2000

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Abstract

In this paper we propose a new method to detect resistive bridging faults by logic testing considering fault effects that depend on the gate threshold voltage and gateinput vectors. First we show that some bridging faultscan be missed to be detected by the traditional test generation method which generates 0 and 1 at the bridgingsignal lines, and then propose a novel method to detectresistive bridging faults by logic testing method, whichis complete in the sense that the undetectable resistivebridging fault by this algorithm gives correct result inlogical operation. A heuristic method using random pat-tern has also been proposed for experimental purpose. Inorder to show the effectiveness of the proposed methodsome experimental results for benchmark circuits havebeen shown.