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公开(公告)号:US08527232B2
公开(公告)日:2013-09-03
申请号:US12768592
申请日:2010-04-27
申请人: Ruifeng Guo , Wu-Tung Cheng , Takeo Kobayashi , Kun-Han Tsai
发明人: Ruifeng Guo , Wu-Tung Cheng , Takeo Kobayashi , Kun-Han Tsai
IPC分类号: G01R31/00
CPC分类号: G01R31/318328
摘要: Methods of diagnostic test pattern generation for small delay defects are based on identification and activation of long paths passing through diagnosis suspects. The long paths are determined according to some criteria such as path delay values calculated with SDF (Standard Delay Format) timing information and the number of logic gates on a path. In some embodiments of the invention, the long paths are the longest paths passing through a diagnosis suspect and reaching a corresponding failing observation point selected from the failure log, and N longest paths are identified for each of such pairs.
摘要翻译: 小延迟缺陷的诊断测试模式生成方法基于识别和激活穿过诊断嫌疑人的长途径。 根据某些标准确定长路径,例如使用SDF(标准延迟格式)定时信息计算的路径延迟值和路径上的逻辑门数。 在本发明的一些实施例中,长路径是穿过诊断嫌疑人并且到达从故障日志中选择的相应故障观察点的最长路径,并且为每个这样的对识别N个最长路径。
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公开(公告)号:US08468409B2
公开(公告)日:2013-06-18
申请号:US12634682
申请日:2009-12-09
申请人: Ruifeng Guo , Wu-Tung Cheng , Kun-Han Tsai
发明人: Ruifeng Guo , Wu-Tung Cheng , Kun-Han Tsai
IPC分类号: G01R31/28
CPC分类号: G01R31/318594 , G01R31/318577
摘要: Speed-path debug techniques based on at-speed scan test patterns. Potential speed paths are identified based upon detected at-speed scan pattern failures and unknown X-value simulation. When the number of identified speed paths is large, the suspect speed paths are ranked.
摘要翻译: 基于速度扫描测试模式的速度路径调试技术。 基于检测到的高速扫描模式故障和未知的X值模拟识别潜在速度路径。 当识别的速度路径数量大时,可疑速度路径被排序。
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公开(公告)号:US20100185908A1
公开(公告)日:2010-07-22
申请号:US12634682
申请日:2009-12-09
申请人: Ruifeng Guo , Wu-Tung Cheng , Kun-Han Tsai
发明人: Ruifeng Guo , Wu-Tung Cheng , Kun-Han Tsai
IPC分类号: G01R31/3177 , G06F11/25
CPC分类号: G01R31/318594 , G01R31/318577
摘要: Speed-path debug techniques based on at-speed scan test patterns. Potential speed paths are identified based upon detected at-speed scan pattern failures and unknown X-value simulation. When the number of identified speed paths is large, the suspect speed paths are ranked.
摘要翻译: 基于速度扫描测试模式的速度路径调试技术。 基于检测到的高速扫描模式故障和未知的X值模拟识别潜在速度路径。 当识别的速度路径数量大时,可疑速度路径被排序。
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公开(公告)号:US20110035638A1
公开(公告)日:2011-02-10
申请号:US12420047
申请日:2009-04-07
申请人: Ruifeng Guo
发明人: Ruifeng Guo
IPC分类号: G01R31/3177 , G06F11/25
CPC分类号: G01R31/318547
摘要: A debug flow that uses debug-friendly test patterns and logic fault diagnosis techniques to help physical fault isolation of timing failures.
摘要翻译: 调试流程,使用调试友好的测试模式和逻辑故障诊断技术来帮助定时故障的物理故障隔离。
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