SUBSTRATE PROCESSING METHOD
    10.
    发明公开

    公开(公告)号:US20230395370A1

    公开(公告)日:2023-12-07

    申请号:US18205089

    申请日:2023-06-02

    发明人: SeungHyun Lee

    IPC分类号: H01L21/02

    摘要: Provided is a substrate processing method for preventing a conductive layer from being oxidized due to activated oxygen gas when filling a gap contacting a conductive layer with oxide film. In an embodiment, a high frequency RF power and a low frequency RF power may be applied to form a dense protective layer in the lower portion of the gap and prevent the activated oxygen gas from reacting with and oxidizing the conductive layer when forming an insulating layer on the protective layer. In another embodiment, a film conversion gas and an inhibiting gas may be supplied to improve a step coverage of the protective layer and a uniform blocking to the activated oxygen gas into the conductive layer along the surface of the gap.