Abstract:
PROBLEM TO BE SOLVED: To provide a system for reducing lithographic errors caused by immersion liquid. SOLUTION: A lithography apparatus comprises an illumination system so constituted as to control a radiation beam, a support so constituted as to support a pattern forming device which imparts patterns on a crosssection of the radiation beam to form a patternized radiation beam, a substrate table so constituted as to hold a substrate, a projection system so constituted as to project the patternized radiation beam on the target of the substrate, a liquid supply system so constituted as to fill at least part of a space between a final element of the projection system and the substrate with the liquid, a sealing member so disposed as to substantially enclose the liquid inside the space between the final element of the projection system and the substrate, and an element for controlling and/or compensate evaporation of the immersion liquid from the substrate. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus in which a barrier member is combined with a shutter member so as to keep a final element of the projection system wet during substrate swap. SOLUTION: 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. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system reducing lithography errors arising from the immersion liquid. SOLUTION: A lithographic apparatus includes: an illumination system configured to condition a radiation beam; a support constructed to support a patterning device, the patterning device being capable of imparting the radiation beam with a pattern to its cross-section to form a patterned radiation beam; a substrate table constructed to hold a substrate; a projection system configured to project the patterned radiation beam onto a target portion of the substrate; a liquid supply system configured to at least partly fill a space between a final element of the projection system and the substrate with liquid; a seal member arranged to substantially contain the liquid within the space between the final element of the projection system and the substrate; and elements to control and/or compensate for evaporation of immersion liquid from the substrate. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To limit movement of an immersion liquid in a gap between a liquid immersion system structure and a projection system and reduce the amount of the immersion liquid flowing out from an immersion system through the gap. SOLUTION: A lithographic apparatus includes the projection system configured to project a patterned radiation beam on a target part on a substrate. The lithographic apparatus also includes a barrier member surrounding space between the projection system and the substrate in use so as to define a reservoir for liquid partly together with the projection system. An outer surface in the radial direction of the barrier member facing a part of the projection system and a part of an outer surface in the radial direction of the projection system facing the barrier member each include a liquid repellent outer surface. The liquid repellent outer surface of the barrier member and/or the part of the liquid repellent outer surface of the projection system include an inner rim which defines the reservoir partly. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system efficiently and effectively eliminating an energy loss in lithography equipment when a relevant component is locally cooled by the evaporation of a supplied liquid, and defocus and lens aberration are caused by transformation and alteration in immersion lithography for filling a gap between a projection system and a substrate with an immersion liquid in order to increase the number of holes. SOLUTION: A timetable 34 is prepared having information on time at which the evaporation of a supplied liquid 11 is the most likely caused, the position of a substrate W, a speed, an acceleration speed and the like. The evaporation of a local area is prevented by heating at least a portion of the substrate W by using a heater according to the timetable 34 by using a liquid evaporation control device 30 or sending humidified air. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce a thermal load imposed on a projection system and/or a liquid immersion system. SOLUTION: This lithographic apparatus includes a projection system configured to project a patterned beam onto a target portion of a substrate. The projection system has a final element. The apparatus also includes a barrier member surrounding a space between the projection system and, in use, the substrate, to define in part with the final element a reservoir for liquid. The barrier member is spaced from the final element to define a gap therebetween. The apparatus further includes a deformable seal between a radially outer surface of the final element and a radially outer surface of the barrier member. The deformable seal is configured to substantially prevent a gas from flowing past the seal towards or away from the reservoir of liquid. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography device which is properly protected against negative effect from ultraviolet radiation and/or immersion liquid, for example. SOLUTION: A lithography device having a detachable sticky film with coating on at least part thereof is disclosed. A liquid supply system with a liquid confinement structure extended along at least part of a boundary of a space between a projection system and a substrate support is disclosed. A film with coating exists on at least part of the liquid confinement structure. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
An immersion liquid is provided comprising an ion-forming component, e.g. an acid or a base, that has a relatively high vapor pressure. Also provided are lithography processes and lithography systems using the immersion liquid.
Abstract:
A lithographic apparatus comprising: an illumination system (IL) configured to condition a radiation beam (PB); a support (MT) constructed to support a patterning device (MA), the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; a substrate table (WT) constructed to hold a substrate (W); a projection system (PL) configured to project the patterned radiation beam onto a target portion of the substrate; a liquid supply system (130) configured to at least partly fill a space (25) between a final element of said projection system and said substrate with liquid; a seal member (12) arranged substantially to contain said liquid within said space between said final element of the projection system and said substrate; and elements (30,50,60,120,140) to control and/or compensate for evaporation of immersion liquid from said substrate.
Abstract:
In an immersion lithographic apparatus, bubble formation in immersion liquid is reduced or prevented by reducing a gap size or area on a substrate table and/or covering the gap.