Automatically routing nets according to current density rules
    1.
    发明授权
    Automatically routing nets according to current density rules 有权
    根据当前密度规则自动布线网络

    公开(公告)号:US08171447B1

    公开(公告)日:2012-05-01

    申请号:US12408211

    申请日:2009-03-20

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5077

    摘要: A technique will automatically route interconnect of an integrated circuit while taking into consideration current density rules. In an implementation, the technique uses a shape-based approach where a grid is not used. Based on data input including current density and a frequency of each net, the technique will determine the current requirements for each net. In an implementation, the technique forms a Steiner tree for a net, and routs using the Steiner tree. The technique widens nets having greater current requirements; adjacent wiring may be pushed aside to create sufficient space for wider nets.

    摘要翻译: 一种技术将自动路由集成电路的互连,同时考虑电流密度规则。 在实现中,该技术使用基于形状的方法,其中不使用网格。 基于数据输入,包括电流密度和每个网络的频率,该技术将确定每个网络的当前要求。 在实现中,该技术为网络形成Steiner树,并使用Steiner树进行路由。 该技术扩大了具有更大电流要求的网络; 可以将相邻的布线推到一边以产生用于更宽的网的足够的空间。

    Method of automatically routing nets according to current density rules
    6.
    发明授权
    Method of automatically routing nets according to current density rules 有权
    根据当前密度规则自动布线网络的方法

    公开(公告)号:US07131096B1

    公开(公告)日:2006-10-31

    申请号:US10709843

    申请日:2004-06-01

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5077

    摘要: A technique will automatically route interconnect of an integrated circuit while taking into consideration current density rules. In an implementation, the technique uses a shape-based approach where a grid is not used. Based on data input including current density and a frequency of each net, the technique will determine the current requirements for each net. In an implementation, the technique forms a Steiner tree for a net, and routs using the Steiner tree. The technique widens nets having greater current requirements; adjacent wiring may be pushed aside to create sufficient space for wider nets.

    摘要翻译: 一种技术将自动路由集成电路的互连,同时考虑电流密度规则。 在实现中,该技术使用基于形状的方法,其中不使用网格。 基于数据输入,包括电流密度和每个网络的频率,该技术将确定每个网络的当前要求。 在实现中,该技术为网络形成Steiner树,并使用Steiner树进行路由。 该技术扩大了具有更大电流要求的网络; 可以将相邻的布线推到一边以产生用于更宽的网的足够的空间。

    Automatically routing nets according to current density rules
    7.
    发明授权
    Automatically routing nets according to current density rules 有权
    根据当前密度规则自动布线网络

    公开(公告)号:US07530040B1

    公开(公告)日:2009-05-05

    申请号:US11383658

    申请日:2006-05-16

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5077

    摘要: A technique will automatically route interconnect of an integrated circuit while taking into consideration current density rules. In an implementation, the technique uses a shape-based approach where a grid is not used. Based on data input including current density and a frequency of each net, the technique will determine the current requirements for each net. In an implementation, the technique forms a Steiner tree for a net, and routs using the Steiner tree. The technique widens nets having greater current requirements; adjacent wiring may be pushed aside to create sufficient space for wider nets.

    摘要翻译: 一种技术将自动路由集成电路的互连,同时考虑电流密度规则。 在实现中,该技术使用基于形状的方法,其中不使用网格。 基于数据输入,包括电流密度和每个网络的频率,该技术将确定每个网络的当前要求。 在实现中,该技术为网络形成Steiner树,并使用Steiner树进行路由。 该技术扩大了具有更大电流要求的网络; 可以将相邻的布线推到一边以产生用于更宽的网的足够的空间。

    Automatic routing system with variable width interconnect
    9.
    发明授权
    Automatic routing system with variable width interconnect 有权
    具有可变宽度互连的自动路由系统

    公开(公告)号:US07784010B1

    公开(公告)日:2010-08-24

    申请号:US10709844

    申请日:2004-06-01

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5077 G06F2217/78

    摘要: A system automatically routes interconnect of an integrated circuit design using variable width interconnect lines. For example, a first automatically routed interconnect may have a different width from a second automatically routed interconnect. The system will vary the width of the interconnect lines based on certain factors or criteria. These factors include current or power handling, reliability, electromigration, voltage drops, self-heating, optical proximity effects, or other factors, or combinations of these factors. The system may use a gridded or a gridless (or shape-based) approach.

    摘要翻译: 系统使用可变宽度的互连线路自动路由集成电路设计的互连。 例如,第一自动路由互连可以具有与第二自动路由互连不同的宽度。 系统将根据某些因素或标准改变互连线的宽度。 这些因素包括电流或功率处理,可靠性,电迁移,电压降,自热,光学邻近效应或其他因素,或这些因素的组合。 该系统可以使用网格或无网格(或基于形状的)方法。

    Method of automatic shape-based routing of interconnects in spines for integrated circuit design
    10.
    发明授权
    Method of automatic shape-based routing of interconnects in spines for integrated circuit design 有权
    用于集成电路设计的脊柱互连的自动形状路由的方法

    公开(公告)号:US07257797B1

    公开(公告)日:2007-08-14

    申请号:US10908895

    申请日:2005-05-31

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5077

    摘要: 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.

    摘要翻译: 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。