BEVEL ETCHER USING ATMOSPHERIC PLASMA

    公开(公告)号:US20230129291A1

    公开(公告)日:2023-04-27

    申请号:US17970987

    申请日:2022-10-21

    Abstract: A method for etching a bevel edge of a substrate. The method includes providing a substrate with a bevel edge after a thin film has been deposited on a top surface of the substrate and rotating the substrate about its center axis. The method also includes, during the rotating, etching the bevel edge by directing flow of atmospheric plasma onto the bevel edge. The flow is parallel to the top surface of the substrate, such as orthogonal to a plane containing a region of the bevel edge being etched by the atmospheric plasma, which may be O2 atmospheric plasma. The etching is performed without loss of thickness of the thin film on the top surface at a radius spaced apart from an outer radius of the substrate. The substrate may be a silicon (Si) wafer, and the thin film may be a carbon film, amorphous carbon, SiC, SiO, or SiN.

    METHOD OF FORMING A DOPED POLYSILICON LAYER

    公开(公告)号:US20230127833A1

    公开(公告)日:2023-04-27

    申请号:US18048188

    申请日:2022-10-20

    Abstract: A method and a wafer processing furnace for forming a doped polysilicon layer on a plurality of substrates is provided. In a preferred embodiment, the method comprises providing a plurality of substrates to a process chamber. It also comprises executing a deposition cycle comprising providing a silicon-containing precursor to the process chamber thereby depositing, on the plurality of substrates, an undoped silicon layer until a pre-determined thickness is reached and providing the process chamber with a flow of a dopant precursor gas without providing the silicon-containing precursor to the process chamber. The method also comprises performing a heat treatment process, thereby forming the doped polysilicon layer.

    HALOGENATION-BASED GAPFILL METHOD AND SYSTEM

    公开(公告)号:US20230115806A1

    公开(公告)日:2023-04-13

    申请号:US17953502

    申请日:2022-09-27

    Abstract: A method and system for forming material within a gap on a surface of a substrate are disclosed. An exemplary method includes forming a material layer on a surface of the substrate within a first reaction chamber, exposing the material layer to a halogen reactant in a second reaction chamber to thereby form a flowable layer comprising a halogen within the gap, and optionally exposing the flowable layer to a converting reactant in a third reaction chamber to form a converted material within the gap. Exemplary methods can further include a step of heat treating the flowable layer or the converted material. Exemplary systems can perform the method.

    Heating zone separation for reactant evaporation system

    公开(公告)号:US11624113B2

    公开(公告)日:2023-04-11

    申请号:US17011828

    申请日:2020-09-03

    Abstract: Systems and methods related to temperature zone control systems can include a reactant source cabinet that is configured to be at least partially evacuated, a vessel base that is configured to hold solid source chemical reactant therein, and a lid that is coupled to a distal portion of the vessel base. The lid may include one or more lid valves. The system may further include a plurality of gas panel valves that are configured to deliver gas from a gas source to the vessel. The system may include a heating element that is configured to heat the one or more lid valves. The system may include a heat shield, a first portion of which is disposed between the one or more lid valves and the vessel base. A second portion of the heat shield may be disposed between the first heating element and the plurality of gas panel valves.

    SHOWERHEAD AND SUBSTRATE PROCESSING APPARATUS USING THE SAME

    公开(公告)号:US20230099798A1

    公开(公告)日:2023-03-30

    申请号:US17950254

    申请日:2022-09-22

    Abstract: A showerhead for supplying a gas includes a showerhead body having an upper surface and a lower surface opposite to the upper surface, and a plurality of through-holes formed in the showerhead body so that the gas passes through from the upper surface toward the lower surface, wherein a size of a cross-sectional area of each through-hole of the plurality of through-holes in the lower surface is the same, while the size of the cross-sectional area of each through-hole in the upper surface increases from a center of the showerhead toward an edge thereof.

    Method and apparatus for filling a recess formed within a substrate surface

    公开(公告)号:US11615980B2

    公开(公告)日:2023-03-28

    申请号:US17544982

    申请日:2021-12-08

    Abstract: There is provided a method of filling one or more recesses by providing the substrate in a reaction chamber and introducing a first reactant to the substrate with a first dose, introducing a second reactant to the substrate with a second dose, wherein the first and the second doses overlap in an overlap area where the first and second reactants react and leave an initially substantially unreacted area where the first and the second areas do not overlap; introducing a third reactant to the substrate with a third dose, the third reactant reacting with the first or second reactant to form deposited material; and etching the deposited material. An apparatus for filling a recess is also disclosed.

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