Substrate support for plasma etch operations

    公开(公告)号:US10593521B2

    公开(公告)日:2020-03-17

    申请号:US13798028

    申请日:2013-03-12

    摘要: Methods and apparatus for processing substrates are disclosed herein. In some embodiments, a substrate support to support a substrate in a processing chamber includes a dielectric insulator plate; a conductive plate supported on the dielectric insulator plate, the conductive plate comprising a top surface and a bottom surface defining a thickness between the top surface and the bottom surface, wherein an edge portion of the conductive plate tapers in a radially outward direction; and a dielectric plate comprising a substrate support surface disposed upon the top surface of the conductor plate.