METHOD OF ENHANCED SELECTIVITY OF HARD MASK USING PLASMA TREATMENTS

    公开(公告)号:US20190043723A1

    公开(公告)日:2019-02-07

    申请号:US16035994

    申请日:2018-07-16

    Abstract: Implementations described herein generally relate to an etching process for etching materials with high selectivity. In one implementation, a method of etching a gate material to form features in the gate material is provided. The method includes (a) exposing a cobalt mask layer to a fluorine-containing gas mixture in a first mode to form a passivation film on the cobalt mask layer. The cobalt mask layer exposes a portion of a gate material disposed on a substrate. The method further comprises (b) exposing the portion of the gate material to an etching gas mixture in a second mode to etch the portion of the gate material. The portion of the gate material is etched through openings defined in the cobalt mask layer and the portion of the gate material is etched at a greater rate than the cobalt mask layer having the passivation layer disposed thereon.

    IN-SITU ATOMIC LAYER DEPOSITION PROCESS
    3.
    发明申请

    公开(公告)号:US20200373149A1

    公开(公告)日:2020-11-26

    申请号:US16831217

    申请日:2020-03-26

    Abstract: Embodiments of the present disclosure provide methods and apparatus for forming a desired material layer on a substrate between, during, prior to or after a patterning process. In one embodiment, a method for forming a material layer on the substrate includes pulsing a first gas precursor comprising an organic silicon compound onto a surface of the substrate. The method also includes disposing a first element from the first gas precursor onto the surface of the substrate. The method further includes maintaining a substrate temperature less than about 110 degrees Celsius while disposing the first element. A second gas precursor is pulsed onto the surface of the substrate. Additionally, the method includes disposing a second element from the second gas precursor to the first element on the surface of the substrate.

    IN-SITU DEPOSITION PROCESS
    4.
    发明申请

    公开(公告)号:US20200027717A1

    公开(公告)日:2020-01-23

    申请号:US16391219

    申请日:2019-04-22

    Abstract: Embodiments of the present disclosure provide methods and apparatus for forming a desired material layer on a substrate between, during, prior to or after a patterning process. In one embodiment, a method for forming a material layer on a substrate includes pulsing a first gas precursor onto a surface of a substrate, attaching a first element from the first gas precursor onto the surface of the substrate, maintaining a substrate temperature less than about 110 degrees Celsius, pulsing a second gas precursor onto the surface of the substrate, and attaching a second element from the second gas precursor to the first element on the surface of the substrate.

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