Seamless gap fill
    21.
    发明授权
    Seamless gap fill 审中-公开

    公开(公告)号:US10672866B2

    公开(公告)日:2020-06-02

    申请号:US16043244

    申请日:2018-07-24

    Abstract: A method includes depositing a first dielectric layer in an opening, the first dielectric layer comprising a semiconductor element and a non-semiconductor element. The method further includes depositing a semiconductor layer on the first dielectric layer, the semiconductor layer comprising a first element that is the same as the semiconductor element. The method further includes introducing a second element to the semiconductor layer wherein the second element is the same as the non-semiconductor element. The method further includes applying a thermal annealing process to the semiconductor layer to change the semiconductor layer into a second dielectric layer.

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