RUTHENIUM ETCHING PROCESS
    4.
    发明申请

    公开(公告)号:US20220301887A1

    公开(公告)日:2022-09-22

    申请号:US17202675

    申请日:2021-03-16

    Abstract: Embodiments of this disclosure provide methods for etching ruthenium. A halide-containing-gas is flowed into a substrate processing chamber, and then an oxygen-containing gas is flowed into the substrate processing chamber. The methods may include atomic layer etching (ALE). The methods may be conducted at higher processing chambers, permitting deposition and etching of ruthenium to be conducted in the same processing chamber.

    Ruthenium Film Deposition Using Low Valent Metal Precursors

    公开(公告)号:US20210140041A1

    公开(公告)日:2021-05-13

    申请号:US17095444

    申请日:2020-11-11

    Abstract: Methods of depositing metal films comprising exposing a substrate surface to a first metal precursor followed by a non-oxygen containing reducing agent comprising a second metal to form a zero-valent first metal film are described. The reducing agent has a metal center that is more electropositive than the metal center of the first metal precursor. In some embodiments, methods of depositing ruthenium films are described in which a substrate surface is exposed to a ruthenium precursor to form a ruthenium containing film on the substrate surface followed by exposure to a non-oxygen containing reducing agent to reduce the ruthenium containing film to a zero-valent ruthenium film and generate an oxidized form of the reducing agent.

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