Ground plane on 2 layer PBGA
    4.
    发明授权
    Ground plane on 2 layer PBGA 有权
    2层PBGA接地层

    公开(公告)号:US06687133B1

    公开(公告)日:2004-02-03

    申请号:US10295711

    申请日:2002-11-15

    IPC分类号: H05K710

    摘要: A two layer PBGA which includes a metal ground plane at its bottom layer. The ground plane is preferably a metal plane which is connected to ground through a metal connection to a ball pad at the center of the package and a ball pad proximate the edge of the package. The ground plane is voided around the signal and power balls, via and “dog bones”. The PBGA is configured such that the ground plane serves effectively the same function as the second layer ground plane in a conventional four layer PBGA. The PBGA provides a cheaper alternative to the generally more expensive four layer PBGA, and provides better cross talk performance (especially for high frequency signaling) as well as better thermal performance as a result of having more metal at the bottom layer of the package.

    摘要翻译: 双层PBGA,其底层包括金属接地层。 接地平面优选地是金属平面,该平面通过金属连接连接到在封装中心的球垫和接近封装边缘的球垫。 地平面在信号和电源球,通孔和“狗骨头”周围无效。 PBGA被配置为使得接地平面在传统的四层PBGA中有效地起到与第二层接地层相同的功能。 PBGA为通常更昂贵的四层PBGA提供了更便宜的替代方案,并且由于在封装的底层具有更多的金属,所以提供了更好的串扰性能(特别是用于高频信号)以及更好的热性能。

    Method and computer program for spreading trace segments in an integrated circuit package design
    5.
    发明授权
    Method and computer program for spreading trace segments in an integrated circuit package design 失效
    用于在集成电路封装设计中扩展迹线段的方法和计算机程序

    公开(公告)号:US07325216B2

    公开(公告)日:2008-01-29

    申请号:US11271991

    申请日:2005-11-09

    申请人: Chengyu Guo

    发明人: Chengyu Guo

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5077

    摘要: A method of routing an integrated circuit package includes receiving as input a placement and routing of at least a portion of an integrated circuit package design, selecting a set of at least three trace segments from the placement and routing that includes at least one inner trace segment routed between two outer trace segments, calculating an inner line function for the inner trace segment that is equally spaced from one of an adjacent line function, an adjacent outer line function, and an adjacent outer trace segment on each side of the inner line function, calculating a pair of end points for the inner line function, and generating as output a new routing that reroutes the inner trace segment collinearly with the inner line function and terminates the inner trace segment by the pair of end points.

    摘要翻译: 布线集成电路封装的方法包括:接收作为输入的集成电路封装设计的至少一部分的放置和布线,从放置和布线中选择至少三个迹线段的集合,其包括至少一个内部迹线段 在两个外部跟踪段之间布线,计算与内部线功能的每一侧上的相邻线函数,相邻外部线函数和相邻外部跟踪段之间相等间隔的内部跟踪段的内部线函数, 计算内线功能的一对端点,并产生一条新的路由,该路由重新路由内部跟踪段与内部线路功能,并通过一对端点终止内部跟踪段。

    Method and computer program for spreading trace segments in an integrated circuit package design
    6.
    发明申请
    Method and computer program for spreading trace segments in an integrated circuit package design 失效
    用于在集成电路封装设计中扩展迹线段的方法和计算机程序

    公开(公告)号:US20070104029A1

    公开(公告)日:2007-05-10

    申请号:US11271991

    申请日:2005-11-09

    申请人: Chengyu Guo

    发明人: Chengyu Guo

    IPC分类号: G01V1/00

    CPC分类号: G06F17/5077

    摘要: A method of routing an integrated circuit package includes receiving as input a placement and routing of at least a portion of an integrated circuit package design, selecting a set of at least three trace segments from the placement and routing that includes at least one inner trace segment routed between two outer trace segments, calculating an inner line function for the inner trace segment that is equally spaced from one of an adjacent line function, an adjacent outer line function, and an adjacent outer trace segment on each side of the inner line function, calculating a pair of end points for the inner line function, and generating as output a new routing that reroutes the inner trace segment collinearly with the inner line function and terminates the inner trace segment by the pair of end points.

    摘要翻译: 布线集成电路封装的方法包括:接收作为输入的集成电路封装设计的至少一部分的放置和布线,从放置和布线中选择至少三个迹线段的集合,其包括至少一个内部迹线段 在两个外部跟踪段之间布线,计算与内部线功能的每一侧上的相邻线函数,相邻外部线函数和相邻外部跟踪段之间相等间隔的内部跟踪段的内部线函数, 计算内线功能的一对端点,并产生一条新的路由,该路由重新路由内部跟踪段与内部线路功能,并通过一对端点终止内部跟踪段。