Absorbing excess under-fill flow with a solder trench
    2.
    发明授权
    Absorbing excess under-fill flow with a solder trench 有权
    用焊料槽吸收多余的填充不足

    公开(公告)号:US09368422B2

    公开(公告)日:2016-06-14

    申请号:US13722603

    申请日:2012-12-20

    Abstract: One embodiment sets forth an integrated circuit package that includes a substrate, one or more devices mounted on the substrate, a layer of under-fill configured to secure the one or more devices on the substrate, and a solder trench formed in the substrate, where the aggregate volume of the solder trench is large enough to capture a flow of excess under-fill during fabrication. One advantage of the disclosed integrated circuit package is that the solder trench is used in lieu of solder dam structures, thereby allowing a stencil to be lowered closer to the substrate surface during fabrication, which facilitates depositing solder paste during fabrication.

    Abstract translation: 一个实施例提出了一种集成电路封装,其包括衬底,安装在衬底上的一个或多个器件,被配置为将衬底上的一个或多个器件固定的底部填充层以及形成在衬底中的焊料沟槽, 焊料沟槽的总体积足够大以在制造期间捕获过量欠填充的流动。 所公开的集成电路封装的一个优点是使用焊接沟槽来代替焊料坝结构,从而允许在制造期间将模板降低到靠近衬底表面,这有助于在制造期间沉积焊膏。

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