STRUCTURE AND PROCESS FOR REDUCING DIE CORNER AND EDGE STRESSES IN MICROELECTRONIC PACKAGES
    2.
    发明申请
    STRUCTURE AND PROCESS FOR REDUCING DIE CORNER AND EDGE STRESSES IN MICROELECTRONIC PACKAGES 审中-公开
    微电子封装中降低隅角和边缘应力的结构和工艺

    公开(公告)号:WO0227788A2

    公开(公告)日:2002-04-04

    申请号:PCT/US0130157

    申请日:2001-09-25

    Abstract: A microelectronic die is aligned with a package substrate and attached to it using solder balls. A specially shaped heat spreader, preferably with a coefficient of thermal expansion (CTE) similar to that of silicon, is attached to the back side of the die using a heat-conducting adhesive. An epoxy-based material is flowed into the gap between the die, the substrate, and the heat spreader via a through-hole in either the substrate or the heat spreader using a dispense process or a transfer molding process. By positioning the heat spreader to abut the die corners and/or edges, the stresses on the die are substantially reduced or eliminated.

    Abstract translation: 微电子管芯与封装衬底对准并使用焊球附着于其上。 使用导热粘合剂将特定形状的散热器(优选地具有与硅的热膨胀系数(CTE)相似的热膨胀系数(CTE))附接到管芯的背面。 使用分配过程或传递模塑过程,基于环氧树脂的材料经由基板或散热器中的通孔流入管芯,基板和散热器之间的间隙中。 通过将散热器定位成邻接模具拐角和/或边缘,模具上的应力被显着减小或消除。

    Structure and process for reducing die corner and edge stresses in microelectronic packages

    公开(公告)号:AU9633201A

    公开(公告)日:2002-04-08

    申请号:AU9633201

    申请日:2001-09-25

    Applicant: INTEL CORP

    Abstract: A microelectronic die is aligned with a package substrate and attached to it using solder balls. A specially shaped heat spreader, preferably with a coefficient of thermal expansion (CTE) similar to that of silicon, is attached to the back side of the die using a heat-conducting adhesive. An epoxy-based material is flowed into the gap between the die, the substrate, and the heat spreader via a through-hole in either the substrate or the heat spreader using a dispense process or a transfer molding process. By positioning the heat spreader to abut the die corners and/or edges, the stresses on the die are substantially reduced or eliminated.

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