Identification and Frequency Estimation of Feedback Bridging Faults Generating Logical Oscillation in CMOS Circuits

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Abstract

When a feedback bridging fault occurs in a combinational circuit and it is activated, logical oscillation may occur in the circuit. In this paper, some electrical conditions are proposed to identify whether a feedback bridging fault occurs logical oscillation. Also, it is proposed how to estimate the oscillation frequency. They are based on piece linearlized models and do not require circuit simulation of large size of circuits. They are evaluated by some experiments. In the experiments, all of the feedback bridging faults occurring logical oscillation are identified. Also, oscillation frequencies larger than the ones obtained by SPICE simulation are derived by the proposed estimation method in the experiments. It promises us that the methods will be used for identifying such bridging faults and estimating the oscillation frequencies.

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Details 詳細情報について

  • CRID
    1571980077394203904
  • NII Article ID
    110003213913
  • NII Book ID
    AA10826272
  • ISSN
    09168532
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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