Wafer bonding
    37.
    发明授权
    Wafer bonding 有权
    晶圆接合

    公开(公告)号:US08119500B2

    公开(公告)日:2012-02-21

    申请号:US11740178

    申请日:2007-04-25

    IPC分类号: H01L21/30

    CPC分类号: H01L21/2007

    摘要: A method for providing a stacked wafer configuration is provided. The method includes bonding a first wafer to a second wafer. A filler material is applied in a gap formed along edges of the first wafer and the second wafer. The filler material provides support along the edges during a thinning and transportation process to help reduce cracking or chipping. The filler material may be cured to reduce any bubbling that may have occurred while applying the filler material. Thereafter, the second wafer may be thinned by grinding, plasma etching, wet etching, or the like. In some embodiments of the present invention, this process may be repeated multiple times to create a stacked wafer configuration having three or more stacked wafers.

    摘要翻译: 提供了提供堆叠晶片配置的方法。 该方法包括将第一晶片接合到第二晶片。 将填料施加在沿着第一晶片和第二晶片的边缘形成的间隙中。 填充材料在减薄和运输过程中沿着边缘提供支撑以帮助减少开裂或碎裂。 可以固化填充材料以减少在施加填充材料时可能发生的任何起泡。 此后,可以通过研磨,等离子体蚀刻,湿蚀刻等来减薄第二晶片。 在本发明的一些实施例中,该过程可以重复多次以产生具有三个或更多个堆叠晶片的堆叠晶片配置。

    Particle free wafer separation
    39.
    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。

    METHOD FOR THINNING A WAFER
    40.
    发明申请
    METHOD FOR THINNING A WAFER 有权
    薄膜方法

    公开(公告)号:US20110198721A1

    公开(公告)日:2011-08-18

    申请号:US12704695

    申请日:2010-02-12

    摘要: A method for thinning a wafer is provided. In one embodiment, a wafer is provided having a plurality of semiconductor chips, the wafer having a first side and a second side opposite the first side, wherein each of the chips includes a set of through silicon vias (TSVs), each of the TSVs substantially sealed by a liner layer and a barrier layer. A wafer carrier is provided for attaching to the second side of the wafer. The first side of the wafer is thinned and thereafer recessed to partially expose portions of the liner layers, barrier layers and the TSVs protruding from the wafer. An isolation layer is deposited over the first side of the wafer and the top portions of the liner layers, barrier layers and the TSVs. Thereafter, an insulation layer is deposited over the isolation layer. The insulation layer is then planarized to expose top portions of the TSVs. A dielectric layer is deposited over the planarized first side of the wafer. One or more electrical contacts are formed in the dielectric layer for electrical connection to the exposed one or more TSVs.

    摘要翻译: 提供了一种用于薄化晶片的方法。 在一个实施例中,提供具有多个半导体芯片的晶片,晶片具有第一侧和与第一侧相对的第二侧,其中每个芯片包括一组穿通硅通孔(TSV),每个TSV 基本上被衬垫层和阻挡层密封。 提供晶片载体以附接到晶片的第二侧。 晶片的第一侧变薄并且凹陷以部分地暴露衬里层,阻挡层和从晶片突出的TSV的部分。 隔离层沉积在晶片的第一侧和衬垫层,阻挡层和TSV的顶部之上。 此后,绝缘层沉积在隔离层上。 然后将绝缘层平坦化以暴露TSV的顶部。 电介质层沉积在晶片的平坦化第一侧上。 在电介质层中形成一个或多个电触头,用于与暴露的一个或多个TSV电连接。