Second Level Interconnect Structures and Methods of Making the Same
    7.
    发明申请
    Second Level Interconnect Structures and Methods of Making the Same 有权
    二级互连结构及其制作方法

    公开(公告)号:US20130270695A1

    公开(公告)日:2013-10-17

    申请号:US13825815

    申请日:2011-09-20

    IPC分类号: H01L23/00

    摘要: The various embodiments of the present invention provide a stress-relieving, second-level interconnect structure that is low-cost and accommodates TCE mismatch between low-TCE packages and PCBs. The various embodiments of the interconnect structure are reworkable and can be scaled to pitches from about 1 millimeter (mm) to about 150 micrometers (μm). The interconnect structure comprises at least a first pad, a supporting pillar, and a solder bump, wherein the first pad and supporting pillar are operative to absorb substantially all plastic strain, therefore enhancing compliance between the two electronic components. The versatility, scalability, and stress-relieving properties of the interconnect structure of the present invention make it a desirable structure to utilize in current two-dimensional and ever-evolving three-dimensional IC structures.

    摘要翻译: 本发明的各种实施例提供了一种应力消除的二级互连结构,其低成本并且适应低TCE封装和PCB之间的TCE不匹配。 互连结构的各种实施例是可再加工的,并且可以缩放到约1毫米(mm)至约150微米(母体)的间距。 所述互连结构至少包括第一焊盘,支撑柱和焊料凸块,其中所述第一焊盘和支撑柱可操作以吸收基本上所有的塑性应变,从而提高所述两个电子部件之间的顺应性。 本发明的互连结构的多功能性,可扩展性和应力消除特性使其成为在目前的二维和不断发展的三维IC结构中使用的理想结构。