Seamless Gapfill With Dielectric ALD Films

    公开(公告)号:US20210090882A1

    公开(公告)日:2021-03-25

    申请号:US16577459

    申请日:2019-09-20

    Abstract: Methods for filling a substrate feature with a seamless dielectric gap fill are described. Methods comprise sequentially depositing a film with a seam, etching the the film to form a recess, and depositing a second film in the recess to form a seamless gap fill.

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