Method for forming semiconductor ball grid array package
    8.
    发明申请
    Method for forming semiconductor ball grid array package 审中-公开
    半导体球栅阵列封装形成方法

    公开(公告)号:US20080274569A1

    公开(公告)日:2008-11-06

    申请号:US12217949

    申请日:2008-07-10

    IPC分类号: H01L21/66

    摘要: A method for forming a semiconductor package provides a ball grid array, BGA, formed on a package substrate. The apices of the solder balls of the BGA are all at the same height, even if the package substrate is non-planar. Different solder ball pad sizes are used and tailored to compensate for non-planarity of the package substrate that may result from thermal warpage. Larger size solder ball pads are formed at relatively-high locations on the package substrate. An equal amount of solder is formed on each of the solder ball pads to produce solder balls having different heights and coplanar apices.

    摘要翻译: 形成半导体封装的方法提供形成在封装衬底上的球栅阵列BGA。 即使封装衬底是非平面的,BGA的焊球的顶点都处于相同的高度。 不同的焊球尺寸被使用和定制以补偿可能由热翘曲引起的封装衬底的非平面性。 较大尺寸的焊球焊盘形成在封装衬底上相对较高的位置处。 在每个焊球垫上形成等量的焊料,以产生具有不同高度和共面顶点的焊球。