METHOD AND APPARATUS FOR GENERATING TEST PATTERNS FOR USE IN AT-SPEED TESTING
    1.
    发明申请
    METHOD AND APPARATUS FOR GENERATING TEST PATTERNS FOR USE IN AT-SPEED TESTING 有权
    用于产生用于速度测试的测试模式的方法和装置

    公开(公告)号:US20120191401A1

    公开(公告)日:2012-07-26

    申请号:US13439188

    申请日:2012-04-04

    IPC分类号: G06F19/00

    摘要: In one embodiment, the invention is a method and apparatus generating test patterns for use in at-speed testing. One embodiment of a method for use by a general purpose computing device that is configured to generate a set of test patterns with which to test an integrated circuit chip includes receiving, by an input device of the general purpose computing device, statistical timing information relating to the integrated circuit chip and a logic circuit of the integrated circuit chip and generating, by a processor of the general purpose computing device, the set of test patterns in accordance with the statistical timing information while simultaneously selecting a set of paths on which to test the set of test patterns.

    摘要翻译: 在一个实施例中,本发明是产生用于在速测试中的测试图案的方法和装置。 由通用计算设备使用的方法的一个实施例被配置为生成用于测试集成电路芯片的一组测试图案,包括由通用计算设备的输入设备接收与 所述集成电路芯片和所述集成电路芯片的逻辑电路,并且由所述通用计算设备的处理器根据所述统计定时信息生成所述一组测试图案,同时选择一组在其上测试的路径 一套测试模式。

    Method and apparatus for generating test patterns for use in at-speed testing
    2.
    发明授权
    Method and apparatus for generating test patterns for use in at-speed testing 有权
    用于生成用于速度测试的测试模式的方法和装置

    公开(公告)号:US08176462B2

    公开(公告)日:2012-05-08

    申请号:US12464025

    申请日:2009-05-11

    IPC分类号: G06F11/22 G06F17/50

    摘要: In one embodiment, the invention is a method and apparatus generating test patterns for use in at-speed testing. One embodiment of a method for use by a general purpose computing device that is configured to generate a set of test patterns with which to test an integrated circuit chip includes receiving, by an input device of the general purpose computing device, statistical timing information relating to the integrated circuit chip and a logic circuit of the integrated circuit chip and generating, by a processor of the general purpose computing device, the set of test patterns in accordance with the statistical timing information while simultaneously selecting a set of paths on which to test the set of test patterns.

    摘要翻译: 在一个实施例中,本发明是产生用于在速测试中的测试图案的方法和装置。 由通用计算设备使用的方法的一个实施例被配置为生成用于测试集成电路芯片的一组测试图案,包括由通用计算设备的输入设备接收与 所述集成电路芯片和所述集成电路芯片的逻辑电路,并且由所述通用计算设备的处理器根据所述统计定时信息生成所述一组测试图案,同时选择一组在其上测试的路径 一套测试模式。

    METHOD AND APPARATUS FOR COVERING A MULTILAYER PROCESS SPACE DURING AT-SPEED TESTING
    3.
    发明申请
    METHOD AND APPARATUS FOR COVERING A MULTILAYER PROCESS SPACE DURING AT-SPEED TESTING 有权
    用于在速度测试期间覆盖多层过程空间的方法和装置

    公开(公告)号:US20100162064A1

    公开(公告)日:2010-06-24

    申请号:US12340072

    申请日:2008-12-19

    IPC分类号: G01R31/28 G06F11/00

    CPC分类号: G01R31/2882

    摘要: In one embodiment, the invention is a method and apparatus covering a multilayer process space during at-speed testing. One embodiment of a method for selecting a set of paths with which to test a process space includes determining a number N of paths to be included in the set of paths such that at least number M of paths in N for which testing of the process space will fail, computing a metric that substantially ensures that the set of paths satisfies the requirements of N and M, and outputting the metric for use in selecting the set of paths.

    摘要翻译: 在一个实施例中,本发明是在高速测试期间覆盖多层工艺空间的方法和装置。 用于选择用于测试处理空间的一组路径的方法的一个实施例包括确定要包括在路径集合中的路径数量N,使得至少数目M的路径在其中用于对进程空间进行测试 将会失败,计算基本上确保路径组满足N和M要求并输出用于选择路径集合的度量的度量。

    METHOD AND APPARATUS FOR EFFICIENT INCREMENTAL STATISTICAL TIMING ANALYSIS AND OPTIMIZATION
    4.
    发明申请
    METHOD AND APPARATUS FOR EFFICIENT INCREMENTAL STATISTICAL TIMING ANALYSIS AND OPTIMIZATION 有权
    有效增量统计时序分析与优化的方法与装置

    公开(公告)号:US20100088658A1

    公开(公告)日:2010-04-08

    申请号:US12244512

    申请日:2008-10-02

    IPC分类号: G06F17/50

    摘要: In one embodiment, the invention is a method and apparatus for efficient incremental statistical timing analysis and optimization. One embodiment of a method for determining an incremental extrema of n random variables, given a change to at least one of the n random variables, includes obtaining the n random variables, obtaining a first extrema for the n random variables, where the first extrema is an extrema computed prior to the change to the at least one of the n random variables, removing the at least one of the n random variables to form an (n−1) subset, computing a second extrema for the (n−1) subset in accordance with the first extrema and the at least one of the n random variables, and outputting a new extrema of the n random variables incrementally based on the extrema of the (n−1) subset and the at least one of the n random variables that changed.

    摘要翻译: 在一个实施例中,本发明是一种用于有效增量统计时序分析和优化的方法和装置。 给定对n个随机变量中的至少一个的改变的用于确定n个随机变量的增量极值的方法的一个实施例包括获得n个随机变量,获得n个随机变量的第一极值,其中第一极值是 在对所述n个随机变量中的至少一个随机变量进行改变之前计算的极值,去除所述n个随机变量中的所述至少一个以形成(n-1)子集,计算所述(n-1)子集的第二极值 根据第一极值和n个随机变量中的至少一个,并且基于第(n-1)个子集的极值和n个随机变量中的至少一个来递增地输出n个随机变量的新的极值 改变了。

    Method, system, and program product for computing a yield gradient from statistical timing
    5.
    发明授权
    Method, system, and program product for computing a yield gradient from statistical timing 有权
    用于从统计时序计算产量梯度的方法,系统和程序产品

    公开(公告)号:US07480880B2

    公开(公告)日:2009-01-20

    申请号:US11358622

    申请日:2006-02-21

    IPC分类号: G06F17/50 G06F17/10

    摘要: The invention provides a method, system, and program product for determining a gradient of a parametric yield of an integrated circuit with respect to parameters of a delay of an edge of a timing graph of the circuit. A first aspect of the invention provides a method for determining a gradient of a parametric yield of an integrated circuit with respect to parameters of a delay of an edge of a timing graph of the circuit, the method comprising: conducting a statistical timing analysis; expressing a statistical circuit delay in terms of a delay of the edge; and computing a gradient of the statistical circuit delay with respect to parameters of the delay of the edge.

    摘要翻译: 本发明提供了一种方法,系统和程序产品,用于相对于电路的时序图的边沿的延迟的参数来确定集成电路的参数收益率的梯度。 本发明的第一方面提供了一种用于根据电路的时序图的边沿的延迟的参数来确定集成电路的参数收益率的梯度的方法,所述方法包括:执行统计时序分析; 根据边缘的延迟表示统计电路延迟; 以及计算相对于边缘的延迟的参数的统计电路延迟的梯度。

    Method and apparatus for generating test patterns for use in at-speed testing
    6.
    发明授权
    Method and apparatus for generating test patterns for use in at-speed testing 有权
    用于生成用于速度测试的测试模式的方法和装置

    公开(公告)号:US08359565B2

    公开(公告)日:2013-01-22

    申请号:US13439188

    申请日:2012-04-04

    IPC分类号: G06F17/50 G06F11/22

    摘要: In one embodiment, the invention is a method and apparatus generating test patterns for use in at-speed testing. One embodiment of a method for use by a general purpose computing device that is configured to generate a set of test patterns with which to test an integrated circuit chip includes receiving, by an input device of the general purpose computing device, statistical timing information relating to the integrated circuit chip and a logic circuit of the integrated circuit chip and generating, by a processor of the general purpose computing device, the set of test patterns in accordance with the statistical timing information while simultaneously selecting a set of paths on which to test the set of test patterns.

    摘要翻译: 在一个实施例中,本发明是产生用于在速测试中的测试图案的方法和装置。 由通用计算设备使用的方法的一个实施例被配置为生成用于测试集成电路芯片的一组测试图案,包括由通用计算设备的输入设备接收与 所述集成电路芯片和所述集成电路芯片的逻辑电路,并且由所述通用计算设备的处理器根据所述统计定时信息生成所述一组测试图案,同时选择一组在其上测试所述的路径 一套测试模式。

    Method and apparatus for selecting paths for use in at-speed testing
    7.
    发明授权
    Method and apparatus for selecting paths for use in at-speed testing 有权
    用于选择在速度测试中使用的路径的方法和装置

    公开(公告)号:US08340939B2

    公开(公告)日:2012-12-25

    申请号:US12610090

    申请日:2009-10-30

    IPC分类号: G01R31/00

    CPC分类号: G01R31/31835

    摘要: In one embodiment, the invention is a method and apparatus for selecting paths for use in at-speed testing. One embodiment of a method for selecting a set of n paths with which to test an integrated circuit chip includes: organizing the set of n paths into a plurality of sub-sets, receiving a new candidate path, and adding the new candidate path to one of the sub-sets when the new candidate path improves the process coverage metric of the sub-sets.

    摘要翻译: 在一个实施例中,本发明是用于选择在速度测试中使用的路径的方法和装置。 用于选择用于测试集成电路芯片的n个路径的集合的方法的一个实施例包括:将n个路径的集合组织成多个子集,接收新的候选路径,并将新的候选路径添加到一个 当新的候选路径改进子集的过程覆盖度量时,子集的子集。

    Method and apparatus for efficient incremental statistical timing analysis and optimization
    8.
    发明授权
    Method and apparatus for efficient incremental statistical timing analysis and optimization 有权
    用于高效增量统计时序分析和优化的方法和装置

    公开(公告)号:US08104005B2

    公开(公告)日:2012-01-24

    申请号:US12244512

    申请日:2008-10-02

    IPC分类号: G06F17/50

    摘要: In one embodiment, the invention is a method and apparatus for efficient incremental statistical timing analysis and optimization. One embodiment of a method for determining an incremental extrema of n random variables, given a change to at least one of the n random variables, includes obtaining the n random variables, obtaining a first extrema for the n random variables, where the first extrema is an extrema computed prior to the change to the at least one of the n random variables, removing the at least one of the n random variables to form an (n−1) subset, computing a second extrema for the (n−1) subset in accordance with the first extrema and the at least one of the n random variables, and outputting a new extrema of the n random variables incrementally based on the extrema of the (n−1) subset and the at least one of the n random variables that changed.

    摘要翻译: 在一个实施例中,本发明是一种用于有效增量统计时序分析和优化的方法和装置。 给定对n个随机变量中的至少一个的改变的用于确定n个随机变量的增量极值的方法的一个实施例包括获得n个随机变量,获得n个随机变量的第一极值,其中第一极值是 在对所述n个随机变量中的至少一个随机变量进行改变之前计算的极值,去除所述n个随机变量中的所述至少一个以形成(n-1)子集,计算所述(n-1)子集的第二极值 根据第一极值和n个随机变量中的至少一个,并且基于第(n-1)个子集的极值和n个随机变量中的至少一个来递增地输出n个随机变量的新的极值 改变了。

    Method and apparatus for statistical path selection for at-speed testing
    9.
    发明授权
    Method and apparatus for statistical path selection for at-speed testing 有权
    用于速度测试的统计路径选择的方法和装置

    公开(公告)号:US07886247B2

    公开(公告)日:2011-02-08

    申请号:US12111634

    申请日:2008-04-29

    IPC分类号: G06F17/50

    CPC分类号: G01R31/318371

    摘要: In one embodiment, the invention is a method and apparatus for statistical path selection for at-speed testing. One embodiment of a method for selecting a path of an integrated circuit chip for at-speed testing includes computing a process coverage metric for a plurality of paths in the integrated circuit chip and selecting at least one path that maximizes the process coverage metric.

    摘要翻译: 在一个实施例中,本发明是用于速度测试的统计路径选择的方法和装置。 用于选择用于高速测试的集成电路芯片的路径的方法的一个实施例包括计算集成电路芯片中的多个路径的处理覆盖度量度,并且选择使过程覆盖度量最大化的至少一个路径。