A FLUID EXTRACTION SYSTEM, METHOD AND LITHOGRAPHIC APPARATUS

    公开(公告)号:US20240411230A1

    公开(公告)日:2024-12-12

    申请号:US18700780

    申请日:2022-09-15

    Abstract: A fluid extraction system for a lithographic apparatus, the fluid extraction system configured to extract fluid that a fluid handling system, including a fluid handling structure, is arranged to supply along a flow path that includes a gap between an edge of a substrate and an edge of a surrounding structure of the substrate; and a controller arranged to control the flow rate of the fluid in the flow path in dependence on one or more selected from: a property of the substrate, a property of the fluid handling system, a property of the fluid handling structure, a property of the fluid extraction system, and/or the separation between the fluid handling structure and the fluid extraction system.

    LITHOGRAPHIC APPARATUS AND METHOD
    2.
    发明申请

    公开(公告)号:US20180321593A1

    公开(公告)日:2018-11-08

    申请号:US15774165

    申请日:2016-11-01

    Abstract: A lithographic apparatus comprises a substrate table for holding a substrate and a projection system for projecting a radiation beam onto a target region of the substrate so as to form an image on the substrate. The projection system comprises a lens element arrangement having a first lens element. A first pressure sensor is arranged to measure at least one pressure value adjacent the first lens element. A controller determines a first change in a pressure difference over the first lens element and/or a further lens element based on a signal received from the pressure sensor, determines adjustments to a position of one of the substrate table and projection system based upon the determined first change, and causes actuators to make adjustments to the substrate table or the projection system.

    Stage Apparatus, Lithographic Apparatus, Control Unit and Method

    公开(公告)号:US20210116820A1

    公开(公告)日:2021-04-22

    申请号:US17050149

    申请日:2019-03-27

    Abstract: The invention provides a stage apparatus comprising an object support, a plurality of support members, a gripper and a control unit. The object support comprises a surface for mounting an object on, the surface extending in a plane. The plurality of support members are for supporting the object, and are arranged to receive the object from a gripper and to arrange the object on the surface and/or vice versa. The support members are moveable in at least a first direction which is perpendicular to the plane. The control unit is arranged to receive shape information regarding an out-of-plane-shape of the object, and is arranged to control positions of the support members. The control unit is arranged to tilt the object while supported by the support members by controlling the positions so as to reduce a space consumption of the object in the first direction, based on the shape information.

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