RADIO FREQUENCY POWER RETURN PATH

    公开(公告)号:US20210032748A1

    公开(公告)日:2021-02-04

    申请号:US16941994

    申请日:2020-07-29

    Abstract: Embodiments presented herein are directed to radio frequency (RF) grounding in process chambers. In one embodiment, a dielectric plate is disposed between a chamber body and a lid of a process chamber. The dielectric plate extends laterally into a volume defined by the chamber body and the lid. A substrate support is disposed in the volume opposite the lid. The substrate support includes a support body disposed on a stem. The support body includes a central region and a peripheral region. The peripheral region is radially outward of the central region. The central region has a thickness less than a thickness of the peripheral region. A flange is disposed adjacent to a bottom surface of the peripheral region. The flange extends radially outward from an outer edge of the peripheral region. A bellows is disposed on the flange and configured to sealingly couple to the dielectric plate.

    RECURSIVE COILS FOR INDUCTIVELY COUPLED PLASMAS

    公开(公告)号:US20200219698A1

    公开(公告)日:2020-07-09

    申请号:US16678081

    申请日:2019-11-08

    Abstract: Embodiments of the present disclosure generally relate to a semiconductor processing apparatus. More specifically, embodiments of the disclosure relate to generating and controlling plasma. A process chamber includes a chamber body that includes one or more chamber walls and defines a processing region. The process chamber also includes two or more inductively driven radio frequency (RF) coils in a concentric axial alignment, the RF coils arranged near the chamber walls to strike and sustain a plasma inside the chamber body, where at least two of the two or more RF coils are in a recursive configuration.

    DOME STRESS ISOLATING LAYER
    6.
    发明申请

    公开(公告)号:US20200181772A1

    公开(公告)日:2020-06-11

    申请号:US16691259

    申请日:2019-11-21

    Abstract: Embodiments described herein relate to apparatus and techniques for mechanical isolation and thermal insulation in a process chamber. In one embodiment, an insulating layer is disposed between a dome assembly and a gas ring. The insulating layer is configured to maintain a temperature of the dome assembly and prevent thermal energy transfer from the dome assembly to the gas ring. The insulating layer provides mechanical isolation of the dome assembly from the gas ring. The insulating layer also provides thermal insulation between the dome assembly and the gas ring. The insulating layer may be fabricated from a polyimide containing material, which substantially reduces an occurrence of deformation of the insulating layer.

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