STATISTICAL ITERATIVE TIMING ANALYSIS OF CIRCUITS HAVING LATCHES AND/OR FEEDBACK LOOPS
    23.
    发明申请
    STATISTICAL ITERATIVE TIMING ANALYSIS OF CIRCUITS HAVING LATCHES AND/OR FEEDBACK LOOPS 有权
    具有锁存器和/或反馈灯的电路的统计迭代时序分析

    公开(公告)号:US20100313177A1

    公开(公告)日:2010-12-09

    申请号:US12842268

    申请日:2010-07-23

    IPC分类号: G06F9/455

    CPC分类号: G06F17/5031

    摘要: Statistical timing analysis methods for circuits having latches and feedback loops are described wherein the circuit yield, and/or the critical cycle mean (the largest cycle mean among all loops in the circuit), may be iteratively calculated with high speed and accuracy, thereby allowing their ready usage in the analysis and validation of proposed circuit designs.

    摘要翻译: 描述了具有锁存器和反馈回路的电路的统计时序分析方法,其中电路产量和/或临界循环平均值(电路中所有回路中的最大周期平均值)可以以高速度和精确度迭代地计算,从而允许 它们在拟议的电路设计的分析和验证中的准备使用。

    Inspection systems and methods
    24.
    发明授权
    Inspection systems and methods 失效
    检验系统和方法

    公开(公告)号:US07492449B2

    公开(公告)日:2009-02-17

    申请号:US11086473

    申请日:2005-03-22

    IPC分类号: G01N21/00

    CPC分类号: G01N21/95684 G01N21/95607

    摘要: Embodiments of inspection systems and methods are disclosed. One embodiment of an inspection system, among others, comprises logic configured to receive a reference signal and a target signal, the reference signal having first surface displacement information and the target signal having second surface displacement information, said logic configured to determine a correlation coefficient between the first surface displacement information and the second surface displacement information, the correlation coefficient indicating whether an inspected object exhibits a defect.

    摘要翻译: 公开了检查系统和方法的实施例。 检查系统的一个实施例包括被配置为接收参考信号和目标信号的逻辑,参考信号具有第一表面位移信息,并且目标信号具有第二表面位移信息,所述逻辑被配置为确定 第一表面位移信息和第二表面位移信息,指示被检查物体是否表现出缺陷的相关系数。

    METHOD, SYSTEM, AND PROGRAM PRODUCT FOR ACCOMMODATING SPATIALLY-CORRELATED VARIATION IN A PROCESS PARAMETER
    25.
    发明申请
    METHOD, SYSTEM, AND PROGRAM PRODUCT FOR ACCOMMODATING SPATIALLY-CORRELATED VARIATION IN A PROCESS PARAMETER 失效
    方法,系统和程序产品,适用于过程参数中的空间相关变化

    公开(公告)号:US20070118331A1

    公开(公告)日:2007-05-24

    申请号:US11272234

    申请日:2005-11-10

    IPC分类号: G06F17/18

    CPC分类号: G06F17/5031

    摘要: The invention provides a method, system, and program product for accommodating spatially-correlated variation in a process parameter during statistical timing of a circuit. In one embodiment, the method includes dividing an area of the circuit into a plurality of grid cells; associating an independent random variable with each of the plurality of grid cells; and expressing at least one spatially-correlated parameter of a first grid cell as a function of the random variables associated with the first grid cell and at least one neighboring grid cell.

    摘要翻译: 本发明提供一种用于在电路的统计定时期间适应处理参数的空间相关变化的方法,系统和程序产品。 在一个实施例中,该方法包括将电路的区域划分成多个网格单元; 将独立随机变量与所述多个网格单元中的每一个相关联; 以及将与第一网格单元和至少一个相邻网格单元相关联的随机变量的函数表达为第一网格单元的至少一个空间相关参数。