Flowable film formation and treatments

    公开(公告)号:US11615966B2

    公开(公告)日:2023-03-28

    申请号:US16932801

    申请日:2020-07-19

    Abstract: Exemplary processing methods may include forming a plasma of a silicon-containing precursor. The methods may include depositing a flowable film on a semiconductor substrate with plasma effluents of the silicon-containing precursor. The semiconductor substrate may define a feature within the semiconductor substrate. The methods may include forming a plasma of a hydrogen-containing precursor within the processing region of the semiconductor processing chamber. A bias power may be applied to the substrate support from a bias power source. The methods may include etching the flowable film from a sidewall of the feature within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor. The methods may include densifying remaining flowable film within the feature defined within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor.

    MOLECULAR LAYER DEPOSITION LINER FOR 3D NAND

    公开(公告)号:US20230058831A1

    公开(公告)日:2023-02-23

    申请号:US17407533

    申请日:2021-08-20

    Abstract: Exemplary methods of semiconductor processing may include etching one or more features partially through a stack of layers formed on a substrate. The methods may include halting the etching prior to penetrating fully through the stack of layers formed on the substrate. The methods may include forming a layer of carbon-containing material along the stack of layers on the substrate. The layer of carbon-containing material may include a metal. The methods may include etching the one or more features fully through the stack of layers on the substrate.

    SELECTIVE PATTERNING WITH MOLECULAR LAYER DEPOSITION

    公开(公告)号:US20230057258A1

    公开(公告)日:2023-02-23

    申请号:US17407504

    申请日:2021-08-20

    Abstract: Exemplary methods of semiconductor processing may include forming a layer of carbon-containing material on a substrate disposed within a processing region of a semiconductor processing chamber. The substrate may include an exposed region of a first dielectric material and an exposed region of a metal-containing material. The layer of carbon-containing material may be selectively formed over the exposed region of the metal-containing material. Forming the layer of carbon-containing material may include one or more cycles of providing a first molecular species that selectively couples with the metal-containing material. Forming the layer of carbon-containing material may include providing a second molecular species that selectively couples with the first molecular species. The methods may include selectively depositing a second dielectric material on the exposed region of the first dielectric material.

    CATALYTIC THERMAL DEPOSITION OF CARBON-CONTAINING MATERIALS

    公开(公告)号:US20220336212A1

    公开(公告)日:2022-10-20

    申请号:US17235241

    申请日:2021-04-20

    Abstract: Exemplary methods of semiconductor processing may include providing a silicon-containing precursor and a carbon-containing precursor to a processing region of a semiconductor processing chamber. The carbon-containing precursor may be characterized by a carbon-carbon double bond or a carbon-carbon triple bond. A substrate may be disposed within the processing region of the semiconductor processing chamber. The methods may include providing a boron-containing precursor to the processing region of the semiconductor processing chamber. The methods may include thermally reacting the silicon-containing precursor, the carbon-containing precursor, and the boron-containing precursor at a temperature above about 250° C. The methods may include forming a silicon-and-carbon-containing layer on the substrate.

    LOW TEMPERATURE GRAPHENE GROWTH
    19.
    发明申请

    公开(公告)号:US20220216058A1

    公开(公告)日:2022-07-07

    申请号:US17142626

    申请日:2021-01-06

    Abstract: Exemplary methods of semiconductor processing may include delivering a carbon-containing precursor and a hydrogen-containing precursor to a processing region of a semiconductor processing chamber. The methods may include generating a plasma of the carbon-containing precursor and the hydrogen-containing precursor within the processing region of the semiconductor processing chamber. The methods may include forming a layer of graphene on a substrate positioned within the processing region of the semiconductor processing chamber. The substrate may be maintained at a temperature below or about 600° C. The methods may include halting flow of the carbon-containing precursor while maintaining the plasma with the hydrogen-containing precursor.

    Method for Si gap fill by PECVD
    20.
    发明授权

    公开(公告)号:US11361991B2

    公开(公告)日:2022-06-14

    申请号:US16975794

    申请日:2019-03-07

    Abstract: Embodiments of the present disclosure relate to processes for filling trenches. The process includes depositing a first amorphous silicon layer on a surface of a layer and a second amorphous silicon layer in a portion of a trench formed in the layer, and portions of side walls of the trench are exposed. The first amorphous silicon layer is removed. The process further includes depositing a third amorphous silicon layer on the surface of the layer and a fourth amorphous silicon layer on the second amorphous silicon layer. The third amorphous silicon layer is removed. The deposition/removal cyclic processes may be repeated until the trench is filled with amorphous silicon layers. The amorphous silicon layers form a seamless amorphous silicon gap fill in the trench since the amorphous silicon layers are formed from bottom up.

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