Particle Free Wafer Separation
    1.
    发明申请
    Particle Free Wafer Separation 有权
    无颗粒自由晶片分离

    公开(公告)号:US20100009518A1

    公开(公告)日:2010-01-14

    申请号:US12170494

    申请日:2008-07-10

    IPC分类号: H01L21/00

    CPC分类号: H01L21/78

    摘要: A method for singulating semiconductor wafers is disclosed. A preferred embodiment comprises forming scrub lines on one side of the wafer and filling the scrub lines with a temporary fill material. The wafer is then thinned by removing material from the opposite side of the wafer from the scrub lines, thereby exposing the temporary fill material on the opposite side. The temporary fill material is then removed, and the individual die are removed from the wafer.

    摘要翻译: 公开了一种用于分离半导体晶片的方法。 优选的实施方案包括在晶片的一侧上形成擦洗线,并用临时填充材料填充擦洗线。 然后通过从磨擦线从晶片的相对侧移除材料来使晶片变薄,从而在相对侧上暴露临时填充材料。 然后移除临时填充材料,并且将单个模具从晶片上移除。

    Particle free wafer separation
    3.
    发明授权
    Particle free wafer separation 有权
    无颗粒晶圆分离

    公开(公告)号:US08058150B2

    公开(公告)日:2011-11-15

    申请号:US12170494

    申请日:2008-07-10

    IPC分类号: H01L21/00

    CPC分类号: H01L21/78

    摘要: A method for singulating semiconductor wafers is disclosed. A preferred embodiment comprises forming scrub lines on one side of the wafer and filling the scrub lines with a temporary fill material. The wafer is then thinned by removing material from the opposite side of the wafer from the scrub lines, thereby exposing the temporary fill material on the opposite side. The temporary fill material is then removed, and the individual die are removed from the wafer.

    摘要翻译: 公开了一种用于分离半导体晶片的方法。 优选的实施方案包括在晶片的一侧上形成擦洗线,并用临时填充材料填充擦洗线。 然后通过从磨擦线从晶片的相对侧移除材料来使晶片变薄,从而在相对侧上暴露临时填充材料。 然后移除临时填充材料,并且将单个模具从晶片上移除。

    Thickness Indicators for Wafer Thinning
    7.
    发明申请
    Thickness Indicators for Wafer Thinning 审中-公开
    晶圆薄化厚度指标

    公开(公告)号:US20090008794A1

    公开(公告)日:2009-01-08

    申请号:US11773171

    申请日:2007-07-03

    摘要: A wafer thinning system and method are disclosed that includes grinding away substrate material from a backside of a semiconductor device. A current change is detected in a grinding device responsive to exposure of a first set of device structures through the substrate material, where the grinding is stopped in response to the detected current change. Polishing repairs the surface and continues to remove an additional amount of the substrate material. Exposure of one or more additional sets of device structures through the substrate material is monitored to determine the additional amount of substrate material to remove, where the additional sets of device structures are located in the semiconductor device at a known depth different than the first set.

    摘要翻译: 公开了一种包括从半导体器件的背面研磨衬底材料的晶片减薄系统和方法。 在研磨装置中检测到电流变化,响应于第一组器件结构暴露于基底材料,其中根据检测到的电流变化停止研磨。 抛光修复表面,并继续去除额外量的基材。 监测一个或多个另外的一组装置结构穿过基底材料的曝光,以确定要除去的基底材料的附加量,其中附加的器件结构组位于半导体器件中在与第一组不同的已知深度处。