Method for molding a semiconductor device utilizing a satin finish
    4.
    发明授权
    Method for molding a semiconductor device utilizing a satin finish 有权
    用于使用缎面光洁度成型半导体器件的方法

    公开(公告)号:US06294411B1

    公开(公告)日:2001-09-25

    申请号:US09247555

    申请日:1999-02-10

    IPC分类号: H01L2148

    摘要: A semiconductor component includes, before molding, a lead frame, a semiconductor chip mounted on the lead frame, and bonding wires for connecting pads of the semiconductor chip to inner leads. This component is inserted between a lower mold and an upper mold having a mold cavity moving unit, and these molds are clamped. Thereafter, an inner space formed by these clamped molds is filled with resin to form a package. Particularly, before resin filling, the mold cavity moving unit is moved downward and presses upper portions of the bonding wires to regulate the wire height. In this state, the inner space of these molds is filled with the resin. Before the filling resin is cured, the mold cavity moving unit is returned to the upper surface position of the package to form a nonfilling space in these molds. Thereafter, the nonfilling space is filled with the resin. With these processes, before resin filling, the bonding wires are pressed by the mold cavity moving unit to regulate the wire height, thus preventing the bonding wires from being exposed to the package surface after molding.

    摘要翻译: 半导体部件在成型之前包括引线框架,安装在引线框架上的半导体芯片以及用于将半导体芯片的焊盘连接到内部引线的接合线。 该部件插入在具有模腔移动单元的下模具和上模具之间,并且这些模具被夹紧。 此后,由这些夹紧的模具形成的内部空间填充有树脂以形成包装。 特别地,在树脂填充之前,模腔移动单元向下移动并按压接合线的上部以调节线高度。 在这种状态下,这些模具的内部空间被树脂填充。 在填充树脂固化之前,模腔移动单元返回到包装的上表面位置,以在这些模具中形成不填充的空间。 此后,用树脂填充未填充的空间。 通过这些处理,在树脂填充之前,接合线被模腔移动单元按压以调节线高度,从而防止接合线在成型后暴露于封装表面。