ELECTROSTATIC CHUCKS AND SUBSTRATE PROCESSING APPARATUS INCLUDING THE SAME

    公开(公告)号:US20190148205A1

    公开(公告)日:2019-05-16

    申请号:US16248328

    申请日:2019-01-15

    Abstract: An electrostatic chuck includes a base, a dielectric plate on the base, a chuck electrode in the dielectric plate, and a lower heater section including lower heaters in the dielectric plate between the chuck electrode and the base, and a lower ground electrode between the lower heaters and the base. The chuck further includes an upper heater section including upper heaters between the lower heaters and the chuck electrode, and a upper ground electrode between the upper heaters and the lower heaters, and a plurality of via contact electrodes connecting the upper ground electrode into the lower ground electrode.

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