Ceria removal compositions
    6.
    发明授权

    公开(公告)号:US11124741B2

    公开(公告)日:2021-09-21

    申请号:US16782912

    申请日:2020-02-05

    Applicant: ENTEGRIS, INC.

    Abstract: The present invention generally relates to a removal composition and process, particularly useful for cleaning ceria particles and CMP contaminants from microelectronic devices having said particles and CMP contaminants thereon, in particular microelectronic devices having PETEOS, Silicon Nitride, and Poly-Si substrates. In one aspect, the invention provides treatment of the microelectronic substrate having ceria particles thereon utilizing complexing agents free of Sulfur and Phosphorous atoms.

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