Apparatus
    3.
    发明申请
    Apparatus 审中-公开

    公开(公告)号:US20190025717A1

    公开(公告)日:2019-01-24

    申请号:US15526639

    申请日:2015-11-16

    Abstract: A mask assembly suitable for use in a lithographic process. The mask assembly comprises a patterning device, a sub-frame secured to the patterning device, a pellicle frame configured to support a pellicle and a mechanical attachment interface operable to allow attachment of the pellicle frame to the sub-frame and detachment of the pellicle frame from the sub-frame.

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