摘要:
A seal between a table and a component in a lithographic apparatus is disclosed. The seal bridges a gap between the component and the table when the component is in a position relative to the table. The component is moveable, in use, relative to the table and in an embodiment is attached to the table. The seal may be integral with the component or the table.
摘要:
An immersion lithographic apparatus is disclosed that includes a fluid confinement system configured to confine fluid to a space between a projection system and a substrate. The fluid confinement system includes a fluid inlet to supply fluid, the fluid inlet connected to an inlet port and an outlet port. The immersion lithographic apparatus further includes a fluid supply system configured to control fluid flow through the fluid inlet by varying the flow rate of fluid provided to the inlet port and the flow rate of fluid removed from the outlet port.
摘要:
A fluid handling structure is disclosed in which the size and arrangement of the fluid extraction openings is specified in order to reduce the vibrations which are transmitted to the fluid handling structure as a result of two-phase extraction. The area of each fluid extraction opening and/or the total area of all of the fluid extraction openings and/or the space in between neighboring fluid extraction openings may be controlled. The reduction in vibrations increases the accuracy of the exposure.
摘要:
A fluid handling structure is disclosed in which measures are taken to increase the speed at which meniscus breakdown occurs. Measures include the shape of a plurality of fluid extraction openings and the shape and density of a plurality of fluid supply openings in the fluid handling structure.
摘要:
A fluid handling structure configured to supply and confine immersion liquid to a space defined between a projection system and a facing surface facing the fluid handling structure is disclosed. The fluid handling structure includes a supply passage formed therein for the passage of fluid from outside the fluid handling structure to the space, and a thermal isolator positioned adjacent the supply passage at least partly to isolate fluid in the supply passage from a thermal load induced in the fluid handling structure.
摘要:
A method of operating a lithographic apparatus is disclosed. The method includes moving a substrate table supporting a substrate relative to a projection system and adjusting the scanning speed between the substrate table and the projection system during imaging of a target within a predefined area at or near an edge of the substrate, or adjusting the stepping speed between adjacent target positions in a predefined area at or near the edge of the substrate, or both. The adjusting the scanning and/or stepping speed may comprise lowering the speed. The projection system is configured to project a patterned beam of radiation on to a target portion of the substrate.
摘要:
A seal between a table and a component in a lithographic apparatus is disclosed. The seal bridges a gap between the component and the table when the component is in a position relative to the table. The component is moveable, in use, relative to the table and in an embodiment is attached to the table. The seal may be integral with the component or the table.
摘要:
An immersion lithographic apparatus is described in which a two-phase flow is separated into liquid-rich and gas-rich flows by causing the liquid-rich flow to preferentially flow along a surface.
摘要:
A fluid handling structure is disclosed in which the size and arrangement of the fluid extraction openings is specified in order to reduce the vibrations which are transmitted to the fluid handling structure as a result of two-phase extraction. The area of each fluid extraction opening and/or the total area of all of the fluid extraction openings and/or the space in between neighboring fluid extraction openings may be controlled. The reduction in vibrations increases the accuracy of the exposure.
摘要:
A substrate table for an immersion lithographic apparatus is disclosed having a recess, configured to receive a substrate of a given size, and a fluid extraction system, configured to extract fluid from a gap between the edge of the substrate and the edge of the recess, the fluid extraction system configured such that the rate of flow of fluid extracted from a localized section of the gap is greater than the rate of flow of fluid extracted from another section of the gap.