Deflection analysis system and method for circuit design
    1.
    发明申请
    Deflection analysis system and method for circuit design 失效
    偏转分析系统及电路设计方法

    公开(公告)号:US20070174796A1

    公开(公告)日:2007-07-26

    申请号:US11336524

    申请日:2006-01-20

    IPC分类号: G06F17/50

    CPC分类号: G06F17/50

    摘要: A system, a method and a computer program product for analyzing a circuit design provide for discretizing the circuit design into a series of pixels. A fraction of at least one constituent material is determined for each pixel. A deflection is also determined for each pixel. The deflection is predicated upon a planarizing of the pixel, and it is calculated while utilizing an algorithm that includes the fraction of the at least one constituent material. A series of deflections for the series of pixels may be mapped and evaluated.

    摘要翻译: 用于分析电路设计的系统,方法和计算机程序产品提供将电路设计离散成一系列像素。 确定每个像素的至少一个构成材料的一部分。 还为每个像素确定偏转。 该偏转基于像素的平面化,并且在利用包括至少一个构成材料的分数的算法的同时进行计算。 可以映射和评估一系列像素的一系列偏转。

    Computer aided design method and apparatus for modeling and analyzing on-chip interconnect structures
    9.
    发明申请
    Computer aided design method and apparatus for modeling and analyzing on-chip interconnect structures 失效
    用于对片上互连结构进行建模和分析的计算机辅助设计方法和装置

    公开(公告)号:US20050086615A1

    公开(公告)日:2005-04-21

    申请号:US10690238

    申请日:2003-10-21

    CPC分类号: G06F17/5036

    摘要: A computer aided design (CAD) system. A template generation engine generates templates from interconnect configuration files. A field solver generates high frequency passive element relationships from the templates. A circuit builder generates circuit description files from device technology models and from high frequency passive element relationships. Parameterized circuit description models may be generated for large range of sensitivity analyses. A simulator simulates circuit responses for transmission line models from the circuit description files. Interconnect configuration files may be generated by a geometry and material definition module that receives process description data from a designer.

    摘要翻译: 计算机辅助设计(CAD)系统。 模板生成引擎从互连配置文件生成模板。 场解算器从模板生成高频无源元件关系。 电路构建器从器件技术模型和高频无源元件关系生成电路描述文件。 可以为大范围的灵敏度分析生成参数化电路描述模型。 模拟器模拟来自电路描述文件的传输线模型的电路响应。 互连配置文件可以由接收来自设计者的过程描述数据的几何和材料定义模块生成。

    Method and apparatus for reducing OPC model errors
    10.
    发明授权
    Method and apparatus for reducing OPC model errors 失效
    减少OPC模型误差的方法和装置

    公开(公告)号:US07325225B2

    公开(公告)日:2008-01-29

    申请号:US11243933

    申请日:2005-10-05

    IPC分类号: G06F17/50

    CPC分类号: G03F1/36 G03F1/68

    摘要: It is important to assess and reduce errors that arise in mask correction techniques such as optical proximity correction. A preliminary mask is obtained using an OPC model. An etched wafer is created from the preliminary mask using lithography, and first and second critical dimensions (CD) are measured on the wafer and. An edge placement error (EPE) is determined that corresponds to a difference between a measured value and a desired value of the second CD. These steps are repeated for a plurality of different values of the first CD, and of for each of the values of, the measured value of the second CD is correlated with its corresponding value on the mask as predicted by the OPC model. Δ difference ΔCD is obtained between the difference of the mask CDs calculated by interpolation of wafer CD measurements and by OPC model predictions and is transformed into an OPC model error.

    摘要翻译: 重要的是评估和减少在诸如光学邻近校正的掩模校正技术中出现的错误。 使用OPC模型获得初步掩模。 使用光刻从初步掩模创建蚀刻的晶片,并且在晶片上测量第一和第二临界尺寸(CD)。 确定对应于测量值和第二CD的期望值之间的差的边缘放置误差(EPE)。 对于第一CD的多个不同值重复这些步骤,并且对于每个值,第二CD的测量值与由OPC模型预测的掩模上的对应值相关。 在通过晶片CD测量的插值和OPC模型预测计算出的掩模CD的差异之间获得差值DeltaCD,并将其转换为OPC模型误差。