In-situ DC plasma for cleaning pedestal heater

    公开(公告)号:US11623253B2

    公开(公告)日:2023-04-11

    申请号:US17582100

    申请日:2022-01-24

    Abstract: Substrate supports, substrate support assemblies and methods of using an arc generated between a first electrode and a second electrode to clean a support surface. The first electrode comprises a plurality of first branches which are interdigitated with a plurality of branches of the second electrode in a finger-joint like pattern creating a gap between the first electrode and the second electrode.

    METHODS OF CONTROLLING GAS PRESSURE IN GAS-PULSING-BASED PRECURSOR DISTRIBUTION SYSTEMS

    公开(公告)号:US20210398823A1

    公开(公告)日:2021-12-23

    申请号:US16905862

    申请日:2020-06-18

    Abstract: Gas distribution apparatus to provide uniform flows of gases from a single source to multiple processing chambers are described. A valve upstream of a shared volume is controlled by at least two pressurizing sequences during a process it the processing chamber. The first pressurizing sequence opens and closes the upstream valve a first number of cycles and the second pressurizing sequence opens and closes the upstream valve less frequently after the first number of cycles. The open/close timing of the second pressurizing sequence occurs less frequently than the open/close timing of the first pressurizing sequence.

    Method for auto-tuning and process performance assessment of chamber control

    公开(公告)号:US11599069B1

    公开(公告)日:2023-03-07

    申请号:US17467020

    申请日:2021-09-03

    Abstract: Embodiments disclosed herein include a method for auto-tuning a system. In an embodiment, the method comprises determining if the system is in a steady state. Thereafter, the method includes exciting the system. In an embodiment, the method comprises storing process feedback measurements from the excited system to provide a set of stored data. In an embodiment, the set of stored data is a subset of all available data generated by the excited system. In an embodiment, the method further comprises determining when the excited system returns to the steady state, and tuning the system using the set of stored data.

    Methods Of Operating A Spatial Deposition Tool

    公开(公告)号:US20200066572A1

    公开(公告)日:2020-02-27

    申请号:US16664406

    申请日:2019-10-25

    Abstract: Apparatus and methods to process one or more wafers are described. A spatial deposition tool comprises a plurality of substrate support surfaces on a substrate support assembly and a plurality of spatially separated and isolated processing stations. The spatially separated isolated processing stations have independently controlled temperature, processing gas types, and gas flows. In some embodiments, the processing gases on one or multiple processing stations are activated using plasma sources. The operation of the spatial tool comprises rotating the substrate assembly in a first direction, and rotating the substrate assembly in a second direction, and repeating the rotations in the first direction and the second direction until a predetermined thickness is deposited on the substrate surface(s).

    In-Situ DC Plasma For Cleaning Pedestal Heater

    公开(公告)号:US20220152668A1

    公开(公告)日:2022-05-19

    申请号:US17582100

    申请日:2022-01-24

    Abstract: Substrate supports, substrate support assemblies and methods of using an arc generated between a first electrode and a second electrode to clean a support surface. The first electrode comprises a plurality of first branches which are interdigitated with a plurality of branches of the second electrode in a finger-joint like pattern creating a gap between the first electrode and the second electrode.

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