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    • 3. 发明授权
    • Design automation using spine routing
    • 使用脊柱路由设计自动化
    • US07802208B1
    • 2010-09-21
    • US11838704
    • 2007-08-14
    • Mark WallerTim ParkerMark WilliamsJeremy BirchGraham BalsdonFumiako Sato
    • Mark WallerTim ParkerMark WilliamsJeremy BirchGraham BalsdonFumiako Sato
    • G06F17/50
    • G06F17/5077
    • A method and technique of routing interconnects of an integrated circuit providing improved routing quality. In an embodiment of the invention, the technique provides linear spine interconnect routing. In memory array blocks, such as in DRAM and SRAM memory designs, connected pins are generally separated by large distances in a first direction and small distances in a second direction, or a spine or channel region. A route area is defined within the spine region. In one embodiment, obstacles in the route area are identified and corresponding forbidden areas are demarcated. The linear spine interconnect is routed in the first direction within the route area while avoiding the forbidden areas. Pins are connected to the spine interconnect by stitching interconnects. Stitching interconnects are generally routed in the second direction.
    • 提供提供改进的路由质量的集成电路的互连路由的方法和技术。 在本发明的一个实施例中,该技术提供线性脊柱互连路由。 在诸如DRAM和SRAM存储器设计的存储器阵列块中,连接的引脚通常在第一方向上分开大距离,在第二方向或脊柱或通道区域上分开小距离。 在脊椎区域内定义路线区域。 在一个实施例中,识别路线区域中的障碍物并且划定对应的禁止区域。 线性脊线互连在路线区域内沿第一方向路由,同时避免禁止区域。 引脚通过缝合互连连接到脊柱互连。 缝合互连通常沿第二方向布线。
    • 9. 发明授权
    • System and technique of pattern matching and pattern replacement
    • 模式匹配和模式替换的系统和技术
    • US08490036B2
    • 2013-07-16
    • US12689150
    • 2010-01-18
    • Mark Waller
    • Mark Waller
    • G06F17/50
    • G06F17/5081
    • A system and technique to specifies patterns to search for in an integrated circuit layout, and specifies proposed replacement patterns. A description file includes specifications for one or more patterns to be searched for. In the description file, for each pattern, there may be one or more proposed replacement patterns. The description file is read. Pattern matches, if any, in a layout are found. A proposed replacement pattern is tested in place of a matched pattern. If acceptable, the proposed pattern may be used to replace the matched pattern.
    • 一种用于指定在集成电路布局中搜索的模式并指定所提出的替换模式的系统和技术。 描述文件包括要搜索的一个或多个模式的规范。 在描述文件中,对于每个模式,可以存在一个或多个所提出的替换模式。 描述文件被读取。 找到布局中的模式匹配(如果有)。 测试提出的替换图案来代替匹配的图案。 如果可以接受,则可以使用所提出的模式来替换匹配的模式。
    • 10. 发明申请
    • Automatically Routing Nets with Variable Spacing
    • 自动路由可变间距网络
    • US20120110539A1
    • 2012-05-03
    • US13346491
    • 2012-01-09
    • Jeremy BirchMark WallerGraham Balsdon
    • Jeremy BirchMark WallerGraham Balsdon
    • G06F17/50
    • G06F17/5077
    • A technique will automatically route interconnect of an integrated circuit and adjust spacing between tracks or interconnect in order to improve performance or reduce electromigration effects. By increasing spacing between certain tracks or moving tracks, performance can improve because a track will be more noise immunity from nearby tracks on the same layer or on different layers. The automatic router will adjust spacing between tracks depending on one or more factors. These factors may include current associated with a track, width of a track, capacitance, inductance, and electromigration. In a specific implementation, the technique uses a shape-based approach where a grid is not used. The technique may further vary the width of the tracks.
    • 一种技术将自动路由集成电路的互连,并调整磁道或互连之间的间距,以提高性能或减少电迁移效应。 通过增加某些轨道或移动轨道之间的间距,性能可以提高,因为轨道将在相同层或不同层上的附近轨道具有更高的抗噪声能力。 自动路由器将根据一个或多个因素来调整轨道之间的间距。 这些因素可以包括与轨道相关的电流,轨道的宽度,电容,电感和电迁移。 在具体实现中,该技术使用基于形状的方法,其中不使用网格。 该技术可以进一步改变轨道的宽度。