Abstract: A lithographic apparatus is described having a liquid supply system configured to at least partly fill a space between a projection system of the lithographic apparatus and a substrate with liquid, a barrier member arranged to substantially contain the liquid within the space, and a heater.

Abstract: A lithographic apparatus is described having a liquid supply system configured to at least partly fill a space between a projection system of the lithographic apparatus and a substrate with liquid, a barrier member arranged to substantially contain the liquid within the space, and a heater.

Abstract: A fluid handling structure for a lithographic apparatus is disclosed, the fluid handling structure successively has, at a boundary from a space configured to contain immersion fluid to a region external to the fluid handling structure: an elongate opening or a plurality of openings arranged in a first line that, in use, are directed towards a substrate and/or a substrate table configured to support the substrate; a gas knife device having an elongate aperture in a second line; and an elongate opening or a plurality of openings adjacent the gas knife device.

Abstract: An immersion lithographic apparatus is provided with a liquid confinement structure which defines at least in part a space configured to contain liquid between the projection system and the substrate. In order to reduce the crossing of the edge of the substrate which is being imaged (which can lead to inclusion of bubbles in the immersion liquid), the cross-sectional area of the space in a plane parallel to the substrate is made as small as possible. The smallest theoretical size is the size of the target portion which is imaged by the projection system. In an embodiment, the shape of a final element of the projection system is also changed to have a similar size and/or shape in a cross-section parallel to the substrate to that of the target portion.

Abstract: A lithographic projection apparatus is disclosed that includes a table, a shutter member, a fluid handling structure, and a fluid extraction system. The fluid handling structure may be configured to supply and confine liquid between a projection system and (i) a substrate, or (ii) the table, or (iii) a surface of the shutter member, or (iv) a combination selected from (i)-(iii). The surface of the shutter member may adjoin and be co-planar with a surface of the table. The surfaces of the shutter member and the table may be spaced apart by a gap. The fluid extraction system may be configured to remove liquid from the gap.

Abstract: A fluid handling structure for a lithographic apparatus, the fluid handling structure having, at a boundary from a space configured to contain immersion fluid to a region external to the fluid handling structure: a meniscus pinning feature to resist passage of immersion fluid in a radially outward direction from the space; and a plurality of gas supply openings in a linear array at least partly surrounding and radially outward of the one or more meniscus pinning features, wherein the plurality of gas supply openings in a linear array are of a similar or the same size.

Abstract: An immersion lithographic apparatus has adaptations to prevent or reduce bubble formation in one or more gaps in the substrate table by preventing bubbles escaping from the gap into the beam path and/or extracting bubbles that may form in the gap.

Abstract: An immersion lithographic apparatus is disclosed that includes a fluid handling system configured to confine immersion liquid to a localized space between a final element of a projection system and a substrate and/or table and a gas supplying device configured to supply gas with a solubility in immersion liquid of greater than 5×10?3 mol/kg at 20° C. and 1 atm total pressure to an area adjacent the space.

Abstract: An immersion lithographic apparatus typically includes a fluid handling system. The fluid handling system generally has a two-phase fluid extraction system configured to remove a mixture of gas and liquid from a given location. Because the extraction fluid comprises two phases, the pressure in the extraction system can vary. This pressure variation can be passed through the immersion liquid and cause inaccuracy in the exposure. To reduce the pressure fluctuation in the extraction system, a buffer chamber may be used. This buffer chamber may be connected to the fluid extraction system in order to provide a volume of gas which reduces pressure fluctuation. Alternatively or additionally, a flexible wall may be provided somewhere in the fluid extraction system. The flexible wall may change shape in response to a pressure change in the fluid extraction system. By changing shape, the flexible wall can help to reduce, or eliminate, the pressure fluctuation.

Abstract: A radiation source comprising a fuel source configured to deliver fuel to a location from which the fuel emits EUV radiation. The radiation source further comprises an immobile fuel debris receiving surface provided with a plurality of grooves. The grooves have orientations which are arranged to direct the flow of liquid fuel under the influence of gravity in one or more desired directions.

Abstract: A lithographic apparatus is described having a liquid supply system configured to at least partly fill a space between a projection system of the lithographic apparatus and a substrate with liquid, a barrier member arranged to substantially contain the liquid within the space, and a heater.

Abstract: A lithographic projection apparatus is disclosed that includes a table, a shutter member, a fluid handling structure, and a fluid extraction system. The fluid handling structure may be configured to supply and confine liquid between a projection system and (i) a substrate, or (ii) the table, or (iii) a surface of the shutter member, or (iv) a combination selected from (i)-(iii). The surface of the shutter member may adjoin and be co-planar with a surface of the table. The surfaces of the shutter member and the table may be spaced apart by a gap. The fluid extraction system may be configured to remove liquid from the gap.

Abstract: A fluid handling structure for a lithographic apparatus, the fluid handling structure having, at a boundary from a space configured to contain immersion fluid to a region external to the fluid handling structure: a meniscus pinning feature to resist passage of immersion fluid in a radially outward direction from the space; a plurality of gas supply openings in a linear array at least partly surrounding and radially outward of the meniscus pinning feature; and a gas recovery opening radially outward of the plurality of gas supply openings in a linear array.

Abstract: An immersion lithographic apparatus has adaptations to prevent or reduce bubble formation in one or more gaps in the substrate table by preventing bubbles escaping from the gap into the beam path and/or extracting bubbles that may form in the gap.

Abstract: A fluid handling structure for a lithographic apparatus, the fluid handling structure to confine liquid to a space, the fluid handling structure having, on an undersurface surrounding the space, a liquid supply opening to supply liquid onto an undersurface of the fluid handling structure and, radially inward with respect to the space of the liquid supply opening, a two dimensional array of liquid extraction openings to extract a liquid from the space and to extract liquid on the undersurface from the liquid supply opening.

Abstract: An immersion lithographic apparatus has adaptations to prevent or reduce bubble formation in one or more gaps in the substrate table by preventing bubbles escaping from the gap into the beam path and/or extracting bubbles that may form in the gap.

Abstract: A fluid handling structure for a lithographic apparatus, the fluid handling structure having, at a boundary from a space configured to contain immersion fluid to a region external to the fluid handling structure: a meniscus pinning feature to resist passage of immersion fluid in a radially outward direction from the space; a plurality of gas supply openings in a linear array at least partly surrounding and radially outward of the meniscus pinning feature; and a gas recovery opening radially outward of the plurality of gas supply openings in a linear array.

Abstract: 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.

Abstract: An immersion lithographic apparatus is provided with a liquid confinement structure which defines at least in part a space configured to contain liquid between the projection system and the substrate. In order to reduce the crossing of the edge of the substrate which is being imaged (which can lead to inclusion of bubbles in the immersion liquid), the cross-sectional area of the space in a plane parallel to the substrate is made as small as possible. The smallest theoretical size is the size of the target portion which is imaged by the projection system. In an embodiment, the shape of a final element of the projection system is also changed to have a similar size and/or shape in a cross-section parallel to the substrate to that of the target portion.

Abstract: A source-collector device is constructed and arranged to generate a radiation beam, The device includes a target unit constructed and arranged to present a target surface of plasma-forming material; a laser unit constructed and arranged to generate a beam of radiation directed onto the target surface so as to form a plasma from said plasma-forming material; a contaminant trap constructed and arranged to reduce propagation of particulate contaminants generated by the plasma; a radiation collector comprising a plurality of grazing-incidence reflectors arranged to collect radiation emitted by the plasma and form a beam therefrom; and a filter constructed and arranged to attenuate at least one wavelength range of the beam.