ELECTROSTATIC CHUCK FOR USE IN SEMICONDUCTOR PROCESSING

    公开(公告)号:EP4258332A3

    公开(公告)日:2024-01-03

    申请号:EP23173104.3

    申请日:2018-05-30

    发明人: GOMM, Troy Alan

    摘要: A semiconductor substrate processing apparatus includes a vacuum chamber having a processing zone in which a semiconductor substrate may be processed, a process gas source in fluid communication with the vacuum chamber for supplying a process gas into the vacuum chamber, a showerhead module through which process gas from the process gas source is supplied to the processing zone of the vacuum chamber, and a substrate pedestal module. The substrate pedestal module includes a platen made of ceramic material having an upper surface configured to support a semiconductor substrate thereon during processing, a stem made of ceramic material, and coplanar electrodes embedded in the platen, the electrodes including an outer RF electrode and inner electrostatic clamping electrodes, the outer RF electrode including a ring-shaped electrode and a radially extending lead extending from the ring-shaped electrode to a central portion of the platen, wherein the ceramic material of the platen and the electrodes comprise a unitary body made in a single sintering step.