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    • 5. 发明申请
    • Integrated heat spreader lid
    • 集成散热器盖
    • US20070152323A1
    • 2007-07-05
    • US11713869
    • 2007-03-05
    • Jack BishDamon BrinkKevin Hanrahan
    • Jack BishDamon BrinkKevin Hanrahan
    • H01L23/34
    • H01L23/3675H01L23/10H01L2924/01079H01L2924/16152H01L2924/1616
    • A heat spreader lid includes an outer periphery region having a lip for bonding to an underlying substrate board, a center region, and one or more strain isolation regions. The strain isolation regions are located between the center region and the outer periphery region and may comprise a number of slots cut partially or completely through the lid in a pattern surrounding or partially surrounding the center region. The strain isolation regions provide isolation of strain and relief of stress due to thermal expansion of the lid despite constraint at its periphery by the bonded lip, resulting in less thermally-induced warping of the center region, less thermally-induced stress on the bond between the lip and the substrate board, and/or less thermally-induced deflection of the substrate board. The reduced warping, stress, and/or deflection increases the reliability of the system by reducing the propensity for delamination or separation in the interface between the lid and the die, and/or by reducing the chance of structural failure in the bond between the lid and the substrate board.
    • 散热器盖包括具有用于结合到下面的基板,中心区域和一个或多个应变隔离区域的唇缘的外周边区域。 应变隔离区域位于中心区域和外周边区域之间,并且可以包括以周围或部分围绕中心区域的图案部分地或完全地通过盖子切割的多个槽。 应变隔离区域提供了由于盖子的热膨胀而导致的应力分离和释放应力,尽管在其外围受到粘合的唇缘的约束,导致较少的热诱导的中心区域的翘曲,较少的热诱导的在 唇缘和衬底板,和/或较少的热诱导的衬底板的偏转。 减小的翘曲,应力和/或挠曲通过降低在盖和模具之间的界面中的分层或分离的倾向和/或通过减少盖子之间的结合的结构故障的机会来增加系统的可靠性 和基板。
    • 8. 发明授权
    • Base plate for suspension assembly in hard disk drive with tapered inner
barrel
    • 带有锥形内桶的硬盘驱动器悬架组件底板
    • US6033755A
    • 2000-03-07
    • US931804
    • 1997-09-16
    • Kevin HanrahanRyan Schmidt
    • Kevin HanrahanRyan Schmidt
    • B21K21/08B21K23/04G11B5/48B32B3/10B21B37/00B21D39/00
    • G11B5/4813B21K21/08B21K23/04Y10T29/4994Y10T428/12361Y10T428/12382Y10T428/24273
    • A base plate wherein the inner barrel of the base plate hub is comprised of two distinct zones. The first zone is an inner diameter sized for use with standard tooling pins in an assembly process as a metric for size control. The second zone is a taper for distributing tension swage force and plastic strain toward the rear part of the hub by making the hub stiffer as the swage ball proceeds downward through the barrel, and for distributing compression swage force and plastic strain toward the rear of the hub by relieving stiffness as the swage ball proceeds upward. A back side slope is provided to prevent washed metal from creating added swage force and plastic strain during swaging in the compression direction. The base plate has a minimal counter bore, a lead-in chamfer which is shallower than typical, a second lead-in chamfer which is very steep and upon which the ball begins to swage, a small inner diameter region to allow for tooling during assembly, and a tapered backside to reduce unneeded material.
    • 基板,其中底板毂的内筒由两个不同的区域组成。 第一个区域是内径,其尺寸适用于作为尺寸控制的度量的组装过程中的标准工具销。 第二区域是锥形,用于通过使模具向下通过筒体而使轮毂更硬地分配拉力模量和塑性应变,从而将挤压力和塑性应变分配到后部 当锻压球向上移动时,通过减轻刚度来调节轮毂。 提供背侧斜面,以防止冲洗过的金属在挤压方向上产生增加的模压力和塑性应变。 基板具有最小的反向孔,比典型的浅的导入倒角,第二引入倒角非常陡峭,球开始变形,小的内径区域允许在组装期间工具 ,以及减少不需要的材料的锥形背面。