SUBSTRATE HOLDER FOR USE IN A LITHOGRAPHIC APPARATUS

    公开(公告)号:SG11202002228UA

    公开(公告)日:2020-04-29

    申请号:SG11202002228U

    申请日:2018-09-19

    Abstract: A substrate holder for use in a lithographic apparatus and configured to support a substrate, the substrate holder having a main body having a main body surface, a plurality of main burls projecting from the main body surface, wherein each main burl has a distal end surface configured to support the substrate, a first seal member projecting from the main body surface and having an upper surface, the first seal member surrounding the plurality of main burls and configured to restrict the passage of liquid between the substrate and the main body surface radially inward past the first seal member, and a plurality of minor burls projecting from the upper surface of the first seal member, wherein each minor burl has a distal end surface configured to support the substrate.

    LITHOGRAPHIC APPARATUS AND METHOD FOR CORRECTING A POSITION OF AN STAGE OF A LITHOGRAPHIC APPARATUS.

    公开(公告)号:NL2006057A

    公开(公告)日:2011-08-25

    申请号:NL2006057

    申请日:2011-01-25

    Abstract: A lithographic apparatus includes a stage to hold an object, the stage being moveable relative to a reference structure in a motion range; a magnet structure to provide a spatially varying magnetic field in at least a part of the motion range, the magnet structure being moveable relative to the reference structure and the stage; a first position measurement system to provide a first measurement signal corresponding to a position of the stage and/or the object in a measurement direction relative to the reference structure; a second position measurement system to provide a second measurement signal corresponding to a position of the stage relative to the magnet structure; and a data processor to correct the first measurement signal with a value dependent on the second measurement signal to provide a corrected first measurement signal representative of the position of the stage and/or the object relative to the reference structure in the measurement direction.

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