METHOD FOR FORMING SILICON NITRIDE FILM SELECTIVELY ON SIDEWALLS OF TRENCHES

    公开(公告)号:US20250037993A1

    公开(公告)日:2025-01-30

    申请号:US18777790

    申请日:2024-07-19

    Abstract: A method of forming dielectric material layer on a surface of a substrate is provided. The method may comprise: providing a substrate within a reaction chamber; flowing a precursor on the substrate within the reaction chamber; flowing a reactant on to the substrate; and generating a plasma by a dual radio frequency (RF) plasma source including a high frequency (HF) component and a low frequency (LF) component. By generating the plasma, the precursor reacts with the reactant to form a layer and a pressure in the reaction chamber during at least the step of providing the plasma is between 2,000 and 4,000 Pa.

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