BGA package with traces for plating pads under the chip
    4.
    发明授权
    BGA package with traces for plating pads under the chip 有权
    BGA封装,带芯片下方的电镀垫

    公开(公告)号:US08053349B2

    公开(公告)日:2011-11-08

    申请号:US12124305

    申请日:2008-05-21

    IPC分类号: H01L21/44

    摘要: A semiconductor flip-chip ball grid array package (600) with one-metal-layered substrate. The sites (611) of a two-dimensional array become usable for attaching solder balls of the signal (non-common net assignment) I/O type to the substrate under the chip area (601), when the sites can be routed for metal plating (620). The space to place a maximum number (614) of signal routing traces is opened up by interrupting the periodicity of the site array from the edge (602) of the substrate towards the center under the chip. The periodicity is preferably interrupted by depopulating entire aligned lines and rows of the two-dimensional array.

    摘要翻译: 一种具有单金属层状基板的半导体倒装芯片球栅阵列封装(600)。 二维阵列的位置(611)可用于将信号(非共同网络分配)I / O类型的焊球附接到芯片区域(601)下方的基板,当位置可以路由为金属 电镀(620)。 通过从基板的边缘(602)朝向芯片下方的中心中断现场阵列的周期性来放置放置最大数量(614)的信号路由迹线的空间。 周期性优选地通过减少二维阵列的整个对齐线和行的中断。