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[Author] Isao HIGASHI(1hit)

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  • On Acceleration of Test Points Selection for Scan-Based BIST

    Michinobu NAKAO  Kazumi HATAYAMA  Isao HIGASHI  

     
    PAPER-Built-in Self-Test

      Vol:
    E81-D No:7
      Page(s):
    668-674

    This paper presents an acceleration of test points selection for circuits designed by a full-scan based BIST scheme. In order to accelerate the test points selection based on cost minimization, and reflecting random pattern testability, we introduce three techniques, the simultaneous selection of plural test points, the simplified selection of test points by the cost reduction factor, and the reduction of the number of test point candidates. We implement a program based on the proposed techniques and evaluate its efficiency experimentally using large scale circuits (26 k-420 k gates).