Formation of SiOCN thin films
    11.
    发明授权

    公开(公告)号:US10510529B2

    公开(公告)日:2019-12-17

    申请号:US15707878

    申请日:2017-09-18

    Abstract: Methods for depositing silicon oxycarbonitride (SiOCN) thin films on a substrate in a reaction space are provided. The methods can include at least one plasma enhanced atomic layer deposition (PEALD) cycle including alternately and sequentially contacting the substrate with a silicon precursor and a second reactant that does not include oxygen. In some embodiments the methods allow for the deposition of SiOCN films having improved acid-based wet etch resistance.

    PLASMA ENHANCED DEPOSITION PROCESSES FOR CONTROLLED FORMATION OF METAL OXIDE THIN FILMS

    公开(公告)号:US20180350587A1

    公开(公告)日:2018-12-06

    申请号:US15971601

    申请日:2018-05-04

    Abstract: Methods for depositing oxide thin films, such as metal oxide, metal silicates, silicon oxycarbide (SiOC) and silicon oxycarbonitride (SiOCN) thin films, on a substrate in a reaction space are provided. The methods can include at least one plasma enhanced atomic layer deposition (PEALD) cycle including alternately and sequentially contacting the substrate with a first reactant that comprises oxygen and a component of the oxide, and a second reactant comprising reactive species that does not include oxygen species. In some embodiments the plasma power used to generate the reactive species can be selected from a range to achieve a desired step coverage or wet etch rate ratio (WERR) for films deposited on three dimensional features. In some embodiments oxide thin films are selectively deposited on a first surface of a substrate relative to a second surface, such as on a dielectric surface relative to a metal or metallic surface.

    FORMATION OF SiOC THIN FILMS
    17.
    发明申请

    公开(公告)号:US20230132743A1

    公开(公告)日:2023-05-04

    申请号:US18146868

    申请日:2022-12-27

    Abstract: Disclosed is a process for forming a silicon oxycarbide (SiOC) thin film on a substrate in a reaction space by a plurality of deposition cycles. At least one deposition cycle includes contacting a surface of the substrate with a silicon precursor that does not comprise nitrogen and a second reactant that includes reactive species. The reactive species are generated from a gas that flows continuously to the reaction space throughout the at least one deposition cycle. A ratio of a wet etch rate of the SiOC thin film to a wet etch rate of thermal silicon oxide is less than 5.

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