SYSTEM AND METHOD FOR GENERATING AT-SPEED STRUCTURAL TESTS TO IMPROVE PROCESS AND ENVIRONMENTAL PARAMETER SPACE COVERAGE
    3.
    发明申请
    SYSTEM AND METHOD FOR GENERATING AT-SPEED STRUCTURAL TESTS TO IMPROVE PROCESS AND ENVIRONMENTAL PARAMETER SPACE COVERAGE 有权
    用于产生速度快速结构测试以改进过程和环境参数空间覆盖的系统和方法

    公开(公告)号:US20090119629A1

    公开(公告)日:2009-05-07

    申请号:US11934146

    申请日:2007-11-02

    IPC分类号: G06F17/50

    CPC分类号: G06F11/24 G01R31/31835

    摘要: A system for enhancing the practicability of at-speed structural testing (ASST). In one embodiment, the system includes first means for performing statistical timing analysis on a design of logic circuitry. A second means performs a criticality analysis on the logic circuitry as a function of the statistical timing analysis so as to determine a criticality probability for each node of the logic circuitry. A third means selects nodes of the logic circuitry as a function of the criticality analysis. A fourth means selects timing paths as a function of the criticality probabilities of the selected nodes. A fifth means generates an ASST pattern for each of the selected timing paths. A sixth mean is provided to perform ASST on a fabricated instantiation of the design at functional speed using the generated ASST pattern.

    摘要翻译: 一种提高高速结构测试(ASST)实用性的系统。 在一个实施例中,系统包括用于对逻辑电路的设计执行统计时序分析的第一装置。 第二种方法是根据统计时序分析对逻辑电路执行关键性分析,以确定逻辑电路的每个节点的临界概率。 第三种方法是选择逻辑电路的节点作为关键性分析的函数。 第四种装置根据所选节点的临界概率来选择定时路径。 第五装置为每个所选定时路径生成ASST模式。 提供了第六个平均值,以使用所生成的ASST模式在功能速度上对制造的设计实例化执行ASST。

    System and method for generating at-speed structural tests to improve process and environmental parameter space coverage
    4.
    发明授权
    System and method for generating at-speed structural tests to improve process and environmental parameter space coverage 有权
    用于生成高速结构测试以改进过程和环境参数空间覆盖的系统和方法

    公开(公告)号:US07856607B2

    公开(公告)日:2010-12-21

    申请号:US11934146

    申请日:2007-11-02

    IPC分类号: G06F17/50

    CPC分类号: G06F11/24 G01R31/31835

    摘要: A system for enhancing the practicability of at-speed structural testing (ASST). In one embodiment, the system includes first means for performing statistical timing analysis on a design of logic circuitry. A second means performs a criticality analysis on the logic circuitry as a function of the statistical timing analysis so as to determine a criticality probability for each node of the logic circuitry. A third means selects nodes of the logic circuitry as a function of the criticality analysis. A fourth means selects timing paths as a function of the criticality probabilities of the selected nodes. A fifth means generates an ASST pattern for each of the selected timing paths. A sixth mean is provided to perform ASST on a fabricated instantiation of the design at functional speed using the generated ASST pattern.

    摘要翻译: 一种提高高速结构测试(ASST)实用性的系统。 在一个实施例中,系统包括用于对逻辑电路的设计执行统计时序分析的第一装置。 第二种方法是根据统计时序分析对逻辑电路执行关键性分析,以确定逻辑电路的每个节点的临界概率。 第三种方法是选择逻辑电路的节点作为关键性分析的函数。 第四种装置根据所选节点的临界概率来选择定时路径。 第五装置为每个所选定时路径生成ASST模式。 提供了第六个平均值,以使用所生成的ASST模式在功能速度上对制造的设计实例化执行ASST。

    CRITICAL PATH SELECTION FOR AT-SPEED TEST
    5.
    发明申请
    CRITICAL PATH SELECTION FOR AT-SPEED TEST 审中-公开
    用于速度测试的关键路径选择

    公开(公告)号:US20090150844A1

    公开(公告)日:2009-06-11

    申请号:US11954138

    申请日:2007-12-11

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5031

    摘要: A method of critical path selection provides a set of paths that initially contains no paths. A timing tool is used to identify potential critical paths of an integrated circuit design. Each potential critical path is evaluated and the potential critical path is added to the set of paths if logic devices within the potential critical path are shared by less than a predetermined number of critical paths within the set of paths. This evaluating and adding process is repeated for each of the potential critical paths until all of the potential critical paths have been evaluated. Then, the potential critical paths within the set of paths can be output.

    摘要翻译: 关键路径选择的方法提供了一组最初不包含路径的路径。 定时工具用于识别集成电路设计的潜在关键路径。 如果潜在的关键路径内的逻辑设备被小于路径集合内预定数量的关键路径共享,则评估每个潜在的关键路径并将潜在的关键路径添加到路径集合。 对于每个潜在的关键路径重复该评估和添加过程,直到所有潜在的关键路径都被评估为止。 然后,可以输出该组路径内的潜在关键路径。