PLASMA UNIFORMITY CONTROL SYSTEM AND METHODS

    公开(公告)号:US20240258070A1

    公开(公告)日:2024-08-01

    申请号:US18104108

    申请日:2023-01-31

    CPC classification number: H01J37/3211 H01J37/32174 H01J2237/3344

    Abstract: Embodiments of the present disclosure include an apparatus and methods for the plasma processing of a substrate. Some embodiments are directed to a plasma processing chamber. The plasma processing chamber generally includes a planar coil region comprising a plurality of planar coils, a first power supply circuit coupled to at least two of the plurality of planar coils, a concentric coil region at least partially surrounding the planar coil region, and a second power supply circuit coupled to at least two of a plurality of concentric coils. The first power supply circuit may be configured to bias the at least two of the plurality of planar coils to affect a plasma in a center region of the plasma processing chamber, and the second power supply circuit may be configured to bias the at least two of the plurality of concentric coils to affect the plasma in an outer region.

    THREAD PROFILES FOR SEMICONDUCTOR PROCESS CHAMBER COMPONENTS

    公开(公告)号:US20220102117A1

    公开(公告)日:2022-03-31

    申请号:US17032220

    申请日:2020-09-25

    Abstract: Embodiments of components for use in substrate process chambers are provided herein. In some embodiments, a component for use in a substrate process chamber includes: a body having an opening extending partially through the body from a top surface of the body, wherein the opening includes a threaded portion for fastening the body to a second process chamber component, wherein the threaded portion includes a plurality of threads defining a plurality of rounded crests and a plurality of rounded roots, and wherein a depth of the threaded portion, being a radial distance between a rounded crest of the plurality of rounded crests and an adjacent root of the plurality of rounded roots, decreases from a first depth to a second depth at a last thread of the plurality of threads.

    METHODS AND APPARATUS FOR TUNING SEMICONDUCTOR PROCESSES

    公开(公告)号:US20210287881A1

    公开(公告)日:2021-09-16

    申请号:US17156957

    申请日:2021-01-25

    Abstract: An apparatus for processing substrates that includes a process chamber with a process volume located above a substrate support assembly surrounded by an edge ring, an upper electrode located above the process volume and a conductive tuning ring surrounding the upper electrode and in electrical contact with the upper electrode. The conductive tuning ring has at least one gas port on a lower surface above the edge ring. The conductive tuning may also have at least one stepped portion on the lower surface that forms an extended bottom surface. In some embodiments, the extended bottom surface may slant radially inwardly or radially outwardly. In some embodiments, the extended bottom surface may have one or more radiused edges.

    SHOWERHEAD ASSEMBLY WITH RECURSIVE GAS CHANNELS

    公开(公告)号:US20220093362A1

    公开(公告)日:2022-03-24

    申请号:US17370619

    申请日:2021-07-08

    Abstract: Embodiments of showerheads are provided herein. In some embodiments, a showerhead assembly includes a chill plate comprising a gas plate and a cooling plate having an aluminum-silicon foil interlayer disposed therebetween for diffusion bonding the gas plate to the cooling plate and a heater plate comprising a first plate, a second plate, and a third plate, wherein an aluminum-silicon foil interlayer is disposed between the first plate and the cooling plate for diffusion bonding the first plate to the cooling plate, wherein an aluminum-silicon foil interlayer is disposed between the first plate and the second plate for diffusion bonding the first plate to the second plate, and wherein an aluminum-silicon foil interlayer is disposed between the second plate and the third plate for diffusion bonding the second plate to the third plate.

    FASTENERS FOR COUPLING COMPONENTS OF SHOWERHEAD ASSEMBLIES

    公开(公告)号:US20210331183A1

    公开(公告)日:2021-10-28

    申请号:US17240462

    申请日:2021-04-26

    Abstract: Embodiments of showerhead assemblies and fasteners for use in coupling components of showerhead assemblies are provided herein. More particularly, the fasteners described herein can advantageously be used to connect a gas distribution plate to a backing plate of the showerhead assembly. The fasteners described herein can further advantageously be used to robustly connect components together where the components have different coefficients of thermal expansion.

    LIFT PIN MECHANISM
    9.
    发明申请

    公开(公告)号:US20220293452A1

    公开(公告)日:2022-09-15

    申请号:US17688712

    申请日:2022-03-07

    Abstract: Methods and apparatus for a lift pin mechanism for substrate processing chambers are provided herein. In some embodiments, the lift pin mechanism includes a lift pin comprising a shaft with a top end, a bottom end, and a coupling end at the bottom end; a bellows assembly disposed about the shaft. The bellows assembly includes an upper bellows flange having an opening for axial movement of the shaft; a bellows having a first end coupled to a lower surface of the upper bellows flange such that the shaft extends into a central volume surrounded by the bellows; and a bellows guide assembly coupled to a second end of the bellows to seal the central volume. The shaft is coupled to the bellows guide assembly at the coupling end. The bellows guide assembly is axially movable to move the lift pin with respect to the upper bellows flange.

    LIFT PIN ASSEMBLY
    10.
    发明申请

    公开(公告)号:US20220293451A1

    公开(公告)日:2022-09-15

    申请号:US17688705

    申请日:2022-03-07

    Abstract: Methods and apparatus for lift pin assemblies for substrate processing chambers are provided. In some embodiments, a lift pin assembly includes a lift pin comprising a shaft, a head, and a coupling end, the head configured to rest against an electrostatic chuck; an upper guide comprising a top end, a bottom end, and a first opening extending from the top end to the bottom end, wherein the shaft is disposed and axially movable through the first opening; a lower guide comprising a top end, a bottom end, and a second opening and a third opening extending from the top end to the bottom end, wherein the third opening is larger than the second opening, and wherein the shaft is disposed and axially movable through the second opening and the third opening; and a biasing mechanism coupled to the shaft and configured to bias the lift pin against the electrostatic chuck.

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