METHOD AND SYSTEM FOR EVALUATING STATISTICAL SENSITIVITY CREDIT IN PATH-BASED HYBRID MULTI-CORNER STATIC TIMING ANALYSIS
    12.
    发明申请
    METHOD AND SYSTEM FOR EVALUATING STATISTICAL SENSITIVITY CREDIT IN PATH-BASED HYBRID MULTI-CORNER STATIC TIMING ANALYSIS 失效
    基于路径的混合多角度静态时序分析评估统计灵敏度信息的方法和系统

    公开(公告)号:US20080209373A1

    公开(公告)日:2008-08-28

    申请号:US11679251

    申请日:2007-02-27

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5031

    摘要: Methods, systems and computer program products for analyzing a timing design of an integrated circuit are disclosed. According to an embodiment, a method for analyzing a timing design of an integrated circuit comprises: providing an initial static timing analysis of the integrated circuit; selecting a static timing test with respect to a static timing test point based on the initial static timing analysis; selecting a timing path leading to the static timing test point for the static timing test; determining an integrated slack path variability for the timing path based on a joint probability distribution of at least one statistically independent parameter; and analyzing the timing design based on the integrated slack path variability.

    摘要翻译: 公开了用于分析集成电路的定时设计的方法,系统和计算机程序产品。 根据实施例,用于分析集成电路的定时设计的方法包括:提供集成电路的初始静态时序分析; 基于初始静态时序分析,选择静态定时测试点的静态定时测试; 选择通过静态定时测试的静态定时测试点的定时路径; 基于至少一个统计学独立参数的联合概率分布来确定所述定时路径的综合松弛路径可变性; 并基于综合的松弛路径变异性分析时序设计。

    Methods for identifying failing timing requirements in a digital design
    18.
    发明授权
    Methods for identifying failing timing requirements in a digital design 有权
    识别数字设计中的故障定时要求的方法

    公开(公告)号:US07886246B2

    公开(公告)日:2011-02-08

    申请号:US12103845

    申请日:2008-04-16

    IPC分类号: G06F17/50 G06F9/45

    CPC分类号: G06F17/5031

    摘要: Methods for identifying failing timing requirements in a digital design. The method includes identifying at least one timing test in the digital design that has a passing slack in a base process corner and a failing slack in a different process corner. The method further includes computing a sensitivity of the failing slack to each of a plurality of variables and comparing each sensitivity to a respective sensitivity threshold. If the sensitivity of at least one of the variables is greater than the respective sensitivity threshold, then the at least one timing test is considered to fail.

    摘要翻译: 识别数字设计中的故障定时要求的方法。 该方法包括识别数字设计中的至少一个定时测试,其在基本过程角落中具有通过松弛,并且在不同的过程角落中发生故障的松弛。 该方法还包括计算对于多个变量中的每一个的故障松弛的灵敏度,并将每个灵敏度与相应的灵敏度阈值进行比较。 如果至少一个变量的灵敏度大于相应的灵敏度阈值,则认为至少一个定时测试失败。

    METHODS FOR IDENTIFYING FAILING TIMING REQUIREMENTS IN A DIGITAL DESIGN
    20.
    发明申请
    METHODS FOR IDENTIFYING FAILING TIMING REQUIREMENTS IN A DIGITAL DESIGN 有权
    用于识别数字设计中的故障时序要求的方法

    公开(公告)号:US20090265674A1

    公开(公告)日:2009-10-22

    申请号:US12103845

    申请日:2008-04-16

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5031

    摘要: Methods for identifying failing timing requirements in a digital design. The method includes identifying at least one timing test in the digital design that has a passing slack in a base process corner and a failing slack in a different process corner. The method further includes computing a sensitivity of the failing slack to each of a plurality of variables and comparing each sensitivity to a respective sensitivity threshold. If the sensitivity of at least one of the variables is greater than the respective sensitivity threshold, then the at least one timing test is considered to fail.

    摘要翻译: 识别数字设计中的故障定时要求的方法。 该方法包括识别数字设计中的至少一个定时测试,其在基本过程角落中具有通过松弛,并且在不同的过程角落中发生故障的松弛。 该方法还包括计算对于多个变量中的每一个的故障松弛的灵敏度,并将每个灵敏度与相应的灵敏度阈值进行比较。 如果至少一个变量的灵敏度大于相应的灵敏度阈值,则认为至少一个定时测试失败。