Apparatus for preventing plasma etching of a wafer clamp in
semiconductor fabrication processes
    1.
    发明授权
    Apparatus for preventing plasma etching of a wafer clamp in semiconductor fabrication processes 有权
    用于在半导体制造工艺中防止晶片夹具的等离子体蚀刻的装置

    公开(公告)号:US6165276A

    公开(公告)日:2000-12-26

    申请号:US398732

    申请日:1999-09-17

    摘要: An apparatus for preventing plasma etching wafer clamp is disclosed in a process chamber. The apparatus comprises a pedestal, a bottom electrode, a wafer clamp, a semiconductor wafer, a quartz ring, a top electrode, a cooling plate, a anodize, and a gas hole. The wafer clamp is used to secure the semiconductor wafer. However, the wafer clamp includes a clamp ring, a concave holder, and a depression. The clamp ring is used to support the semiconductor wafer. The concave holder has a semi-elliptical surface, polymer being formed on the backside of the concave holder to prevent plasma etching in the deposition or etching process, into the clamp ring. Then The depression is designed, higher position, adjacent the concave holder.

    摘要翻译: 在处理室中公开了一种用于防止等离子体蚀刻晶片夹的装置。 该装置包括基座,底部电极,晶片夹具,半导体晶片,石英环,顶部电极,冷却板,阳极氧化和气体孔。 晶片钳用于固定半导体晶片。 然而,晶片夹具包括夹紧环,凹形支架和凹陷。 夹环用于支撑半导体晶片。 凹形保持器具有半椭圆表面,聚合物形成在凹形支架的背面,以防止在沉积或蚀刻工艺中的等离子体蚀刻进入夹紧环。 然后凹陷被设计成较高的位置,靠近凹形支架。