CHEMICAL DISPENSING APPARATUS AND METHODS FOR DISPENSING A CHEMICAL TO A REACTION CHAMBER

    公开(公告)号:US20190096708A1

    公开(公告)日:2019-03-28

    申请号:US15719208

    申请日:2017-09-28

    Inventor: Varun Sharma

    Abstract: A chemical dispensing apparatus for providing a chlorine vapor to a reaction chamber is disclosed. The chemical dispensing apparatus may include: a chemical storage vessel configured for storing a chlorine-containing chemical species, a reservoir vessel in fluid communication with the chemical storage vessel, the reservoir vessel configured for converting the chlorine-containing chemical species to the chlorine vapor, and a reaction chamber in fluid communication with the reservoir vessel. Methods for dispensing a chlorine vapor to a reaction chamber are also disclosed.

    ATOMIC LAYER ETCHING PROCESSES
    36.
    发明申请

    公开(公告)号:US20250037970A1

    公开(公告)日:2025-01-30

    申请号:US18790894

    申请日:2024-07-31

    Abstract: Atomic layer etching (ALE) processes are disclosed. In some embodiments, the methods comprise at least one etch cycle in which the substrate is alternately and sequentially exposed to a first vapor phase non-metal halide reactant and a second vapor phase halide reactant. In some embodiments both the first and second reactants are chloride reactants. In some embodiments the first reactant is fluorinating gas and the second reactant is a chlorinating gas. In some embodiments a thermal ALE cycle is used in which the substrate is not contacted with a plasma reactant.

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