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    • 6. 发明授权
    • Compactor independent direct diagnosis of test hardware
    • 压缩机独立直接诊断测试硬件
    • US08280688B2
    • 2012-10-02
    • US12790049
    • 2010-05-28
    • Yu HuangWu-Tung ChengJanusz Rajski
    • Yu HuangWu-Tung ChengJanusz Rajski
    • G06F11/30G06F11/00
    • G01R31/318547G06F11/267G06F11/27
    • Methods, apparatus, and systems for performing fault diagnosis are disclosed herein. In one exemplary embodiment, a failure log is received comprising entries indicative of compressed test responses to chain patterns and compressed test responses to scan patterns. A faulty scan chain in the circuit-under-test is identified based at least in part on one or more of the entries indicative of the compressed test responses to chain patterns. One or more faulty scan cell candidates in the faulty scan chain are identified based at least in part on one or more of the entries indicative of the compressed test responses to scan patterns. The one or more identified scan cell candidates can be reported. Computer-readable media comprising computer-executable instructions for causing a computer to perform any of the disclosed methods are also provided. Likewise, computer-readable media storing lists of fault candidates identified by any of the disclosed methods are also provided.
    • 本文公开了用于执行故障诊断的方法,装置和系统。 在一个示例性实施例中,接收到故障日志,其包括指示对链模式的压缩测试响应的条目和对扫描模式的压缩测试响应。 至少部分地基于指示压缩的测试对链模式的测试响应的一个或多个条目来识别被测电路中的有缺陷的扫描链。 至少部分地基于指示对扫描模式的压缩测试响应的一个或多个条目来识别故障扫描链中的一个或多个错误的扫描小区候选。 可以报​​告一个或多个识别的扫描单元候选。 还提供了包括用于使计算机执行任何所公开的方法的计算机可执行指令的计算机可读介质。 同样,还提供了存储通过任何所公开的方法识别的故障候选列表的计算机可读介质。