Method of encapsulating packaged microelectronic devices with a barrier
    8.
    发明授权
    Method of encapsulating packaged microelectronic devices with a barrier 有权
    封装具有屏障的封装微电子器件的方法

    公开(公告)号:US07332376B2

    公开(公告)日:2008-02-19

    申请号:US11516455

    申请日:2006-09-05

    申请人: Chad A. Cobbley

    发明人: Chad A. Cobbley

    IPC分类号: H01L21/48 H01L23/48 H05K3/30

    摘要: Methods and apparatuses for encapsulating a microelectronic die or other components in the fabrication of packaged microelectronic devices. In one aspect of the invention, a packaged microelectronic device assembly includes a microelectronic die, a substrate attached to the die, a protective casing covering a portion of the substrate, and a barrier projecting away from the surface of the substrate. The microelectronic die can have an integrated circuit and a plurality of bond-pads operatively coupled to the integrated circuit. The substrate can have a cap-zone defined by an area that is to be covered by the protective casing, a plurality of contact elements arranged in the cap-zone, a plurality of ball-pads arranged in a ball-pad array outside of the cap-zone, and a plurality of conductive lines coupling the contact elements to the ball-pads. The contact elements are electrically coupled to corresponding bond-pads on the microelectronic die, and the protective casing covers the cap-zone. The barrier on the surface of the substrate is configured so that at least a portion of the barrier is outside of the cap-zone and adjacent to at least a portion of the molded section. The barrier is a seal that inhibits the thermosetting material of the protective casing from covering a portion of the substrate outside of the cap-zone. As such, the barrier prevents thermosetting material from leaking between the substrate and a mold outside of the cap-zone during a molding process.

    摘要翻译: 用于将微电子管芯或其他部件封装在封装的微电子器件的制造中的方法和装置。 在本发明的一个方面,封装的微电子器件组件包括微电子管芯,连接到管芯的衬底,覆盖衬底的一部分的保护壳体以及远离衬底的表面突出的阻挡层。 微电子管芯可以具有集成电路和可操作地耦合到集成电路的多个接合焊盘。 衬底可以具有由被保护壳体覆盖的区域限定的帽区域,布置在帽区域中的多个接触元件,布置在球垫阵列外部的球垫阵列中的多个球垫 帽区,以及将接触元件耦合到球垫的多个导线。 接触元件电耦合到微电子管芯上的相应接合焊盘,并且保护套管覆盖盖区。 衬底表面上的阻挡层被构造成使得阻挡层的至少一部分在帽区域的外部并且与模制部分的至少一部分相邻。 阻挡层是抑制保护壳体的热固性材料在盖帽区域外部覆盖基底的一部分的密封件。 因此,在模制过程中,屏障防止热固性材料在盖区之外的基板和模具之间泄漏。