FAST GAS SWITCHING
    14.
    发明公开
    FAST GAS SWITCHING 审中-公开

    公开(公告)号:US20240203695A1

    公开(公告)日:2024-06-20

    申请号:US18083372

    申请日:2022-12-16

    Abstract: A system including a chamber enclosing a processing region, a substrate support within the chamber and configured to retain a substrate in the processing region, a gas distribution manifold coupled to the chamber to introduce first and a second etching gases from the gas distribution manifold using first and second inlets, a first gas distribution channel coupled configured to selectively switch between directing the first etching gas along a first gas flow path towards the processing region, and directing the first etching gas towards a vent, and a second gas distribution channel configured to selectively switch between directing the second etching gas towards the vent, and directing the second etching gas along a fourth gas flow path towards the processing region, and a flow ratio controller operatively coupled to the first and second gas distribution channels and configured to direct the first or second etching gases towards the processing region.

    Methods and apparatus for processing a substrate

    公开(公告)号:US11361941B2

    公开(公告)日:2022-06-14

    申请号:US16906875

    申请日:2020-06-19

    Abstract: Methods and apparatus for processing a substrate are herein described. For example, a processing chamber for processing a substrate includes a chamber body defining a processing volume; a radio frequency (RF) power source configured to deliver RF energy to the processing volume for processing a substrate; a substrate support comprising an electrode; an AC power supply configured to supply power to the processing chamber; an RF filter circuit connected between the electrode and the AC power supply; and a controller configured to monitor an RF voltage at the RF filter circuit that is indirectly induced into the electrode by the RF power source during operation, and to determine a processing state in the processing volume based on the monitored RF voltage.

    CYLINDRICAL CAVITY WITH IMPEDANCE SHIFTING BY IRISES IN A POWER-SUPPLYING WAVEGUIDE

    公开(公告)号:US20220093364A1

    公开(公告)日:2022-03-24

    申请号:US17542781

    申请日:2021-12-06

    Abstract: A plasma reactor has a cylindrical microwave cavity overlying a workpiece processing chamber, a microwave source having a pair of microwave source outputs, and a pair of respective waveguides. The cavity has first and second input ports in a sidewall and space apart by an azimuthal angle. Each of the waveguides has a microwave input end coupled to a microwave source output and a microwave output end coupled to a respective one of the first and second input ports, a coupling aperture plate at the output end with a rectangular coupling aperture in the coupling aperture plate, and an iris plate between the coupling aperture plate and the microwave input end with a rectangular iris opening in the iris plate.

    MULTI-LAYER PLASMA EROSION PROTECTION FOR CHAMBER COMPONENTS

    公开(公告)号:US20180330923A1

    公开(公告)日:2018-11-15

    申请号:US15965794

    申请日:2018-04-27

    Abstract: A method of applying a multi-layer plasma resistant coating on an article comprises performing plating or ALD to form a conformal first plasma resistant layer on an article, wherein the conformal first plasma resistant layer is formed on a surface of the article and on walls of high aspect ratio features in the article. The conformal first plasma resistant coating has a porosity of approximately 0% and a thickness of approximately 200 nm to approximately 1 micron. One of electron beam ion assisted deposition (EB-IAD), plasma enhanced chemical vapor deposition (PECVD), aerosol deposition or plasma spraying is then performed to form a second plasma resistant layer that covers the conformal first plasma resistant layer at a region of the surface but not at the walls of the high aspect ratio features.

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