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公开(公告)号:US20090241080A1
公开(公告)日:2009-09-24
申请号:US12054015
申请日:2008-03-24
申请人: Yifeng Yang , Yun Zhang , Yibin Xia , David J. Chapman
发明人: Yifeng Yang , Yun Zhang , Yibin Xia , David J. Chapman
IPC分类号: G06F17/50
CPC分类号: G06F17/5031
摘要: A method of characterizing a device under test (DUT) includes determining a goal function associated with a setup and hold time for the DUT. A minimum value for the goal function is determined by iteratively adjusting setup and hold times for input data to the DUT, and determining whether the DUT performs according to specifications. The minimum goal function value will reflect minimum setup and hold time values based on weights associated with the goal function. This allows the minimum setup and hold times for the DUT to be characterized with a small number of binary searches, improving the speed of the characterization process.
摘要翻译: 表征被测设备(DUT)的方法包括确定与DUT的建立和保持时间相关联的目标函数。 目标函数的最小值通过迭代地调整输入数据到DUT的建立和保持时间以及根据规格确定DUT是否执行来确定。 最小目标函数值将根据与目标函数相关的权重反映最小建立和保持时间值。 这允许DUT的最小建立和保持时间用少量二进制搜索进行表征,从而提高了表征过程的速度。
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公开(公告)号:US07861200B2
公开(公告)日:2010-12-28
申请号:US12054015
申请日:2008-03-24
申请人: Yifeng Yang , Yun Zhang , Yibin Xia , David J. Chapman
发明人: Yifeng Yang , Yun Zhang , Yibin Xia , David J. Chapman
IPC分类号: G06F17/50
CPC分类号: G06F17/5031
摘要: A method of characterizing a device under test (DUT) includes determining a goal function associated with a setup and hold time for the DUT. A minimum value for the goal function is determined by iteratively adjusting setup and hold times for input data to the DUT, and determining whether the DUT performs according to specifications. The minimum goal function value will reflect minimum setup and hold time values based on weights associated with the goal function. This allows the minimum setup and hold times for the DUT to be characterized with a small number of binary searches, improving the speed of the characterization process.
摘要翻译: 表征被测设备(DUT)的方法包括确定与DUT的建立和保持时间相关联的目标函数。 目标函数的最小值通过迭代地调整输入数据到DUT的建立和保持时间以及根据规格确定DUT是否执行来确定。 最小目标函数值将根据与目标函数相关的权重反映最小建立和保持时间值。 这允许DUT的最小建立和保持时间用少量二进制搜索进行表征,从而提高了表征过程的速度。
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