MICROELECTRONIC ASSEMBLY FABRICATION WITH TERMINAL FORMATION FROM A CONDUCTIVE LAYER
    22.
    发明申请
    MICROELECTRONIC ASSEMBLY FABRICATION WITH TERMINAL FORMATION FROM A CONDUCTIVE LAYER 审中-公开
    微电子组装制造与导电层的终端形成

    公开(公告)号:WO9828955A2

    公开(公告)日:1998-07-02

    申请号:PCT/US9723949

    申请日:1997-12-12

    Applicant: TESSERA INC

    Abstract: A structure (13) including a conductive, preferably metallic conductive layer (26) is provided with leads (12) on a bottom surface. The leads have fixed (16) ends permanently attached to the structure and free ends (18) detachable from the structure. The structure is engaged with a microelectronic element (22) such as a semiconductor chip or wafer, the free ends of the leads are bonded to the microelectronic element, and the leads are bent by moving the structure relative to the microelectronic element. Portions of the conductive layer are removed, leaving residual portions of the conductive layer as separate electrical terminals (32) connected to at least some of the leads. The conductive layer mechanically stabilizes the structure before bonding, and facilitates precise registration of the leads with the microelectronic element. After the conductive layer is converted to separate terminals, it does not impair free movement of the terminals relative to the microelectronic element.

    Abstract translation: 包括导电优选金属导电层(26)的结构(13)在底表面上设置有引线(12)。 引线具有永久地附接到结构的固定的(16)端部,并且可自由结构的自由端(18)可拆卸。 该结构与诸如半导体芯片或晶片的微电子元件(22)接合,引线的自由端接合到微电子元件,并且通过相对于微电子元件移动结构来使引线弯曲。 导电层的一部分被去除,导致导电层的剩余部分作为连接到至少一些引线的单独的电端子(32)。 导电层在结合之前机械稳定结构,并且有助于引线与微电子元件的精确对准。 在将导电层转换成单独的端子之后,它不会损害端子相对于微电子元件的自由移动。

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