Electrostatic chuck having textured contact surface
    3.
    发明申请
    Electrostatic chuck having textured contact surface 有权
    具有纹理接触表面的静电吸盘

    公开(公告)号:US20070047170A1

    公开(公告)日:2007-03-01

    申请号:US11214286

    申请日:2005-08-29

    IPC分类号: H01L21/683

    CPC分类号: H01L21/6833 Y10T279/23

    摘要: An electrostatic chuck has an electrode embedded in a dielectric which is mounted on a pedestal. The dielectric has a contact surface with an average surface roughness of less than about 0.5 μm, a surface peak waviness of less than about 0.12 μm, and a surface peak waviness material ratio of greater than about 20%. The surface texture can be formed by lapping the dielectric surface with a slurry of abrasive particles.

    摘要翻译: 静电吸盘具有嵌入在基座上的电介质中的电极。 电介质具有平均表面粗糙度小于约0.5μm的接触表面,小于约0.12μm的表面峰波纹度以及大于约20%的表面峰波纹度材料比。 可以通过用研磨颗粒的浆料研磨电介质表面来形成表面纹理。