Flip chip ball grid array package with constraint plate
    2.
    发明申请
    Flip chip ball grid array package with constraint plate 审中-公开
    倒装芯片球栅阵列封装带约束板

    公开(公告)号:US20060043602A1

    公开(公告)日:2006-03-02

    申请号:US10932005

    申请日:2004-09-02

    IPC分类号: H01L23/48

    摘要: A flip chip ball grid array package is provided. In one embodiment, a flip chip ball grid array package comprises a substrate having an upper surface and a lower surface opposite the upper surface and a microelectronic element comprising a set of solder balls being secured to the upper surface of the substrate. A constraint member is secured to the lower surface of the substrate so that the constraint member has a degree of rigidity to reduce warpage due to thermal expansion mismatches between at least the microelectronic element and the substrate.

    摘要翻译: 提供倒装芯片球栅阵列封装。 在一个实施例中,倒装芯片球栅阵列封装包括具有上表面和与上表面相对的下表面的衬底,以及包括一组焊球固定到衬底的上表面的微电子元件。 约束构件被固定到基板的下表面,使得约束构件具有刚度以减少由于至少微电子元件和基板之间的热膨胀错配引起的翘曲。

    Novel constraint stiffener design
    7.
    发明申请
    Novel constraint stiffener design 有权
    新型约束加强筋设计

    公开(公告)号:US20070069366A1

    公开(公告)日:2007-03-29

    申请号:US11237924

    申请日:2005-09-29

    IPC分类号: H01L23/12

    摘要: A constraint stiffener for reinforcing an integrated circuit package is provided. In one embodiment, the constraint stiffener comprises a rigid, planar base element for bonding to an integrated circuit substrate. The base element has a plurality of elongated support members, and the base element has an opening therein for surrounding an integrated circuit. The base element and support members reduce warpage due to thermal expansion mismatches between at least the integrated circuit and the substrate. In one embodiment, the elongated support members are detachable from the corners of the base element. In another embodiment, the elongated support members have means for attaching and detaching to the corners of the base element. In yet another embodiment, the elongated support members are detachable from about the midsections of the base element. In another embodiment, the elongated support members have means for attaching and detaching to the midsections of the base element.

    摘要翻译: 提供了用于加强集成电路封装的约束加强件。 在一个实施例中,约束加强件包括用于结合到集成电路基板的刚性平面基座元件。 基座元件具有多个细长的支撑构件,并且基座元件具有用于围绕集成电路的开口。 基部元件和支撑构件由于至少集成电路和基板之间的热膨胀失配而减少翘曲。 在一个实施例中,细长支撑构件可从基座元件的角部拆卸。 在另一个实施例中,细长支撑构件具有用于附接和分离到基部元件的角部的装置。 在另一个实施例中,细长的支撑构件可从基部元件的中央部分的周围拆卸。 在另一个实施例中,细长的支撑构件具有用于附接和分离到基部元件的中部的装置。