Abstract:
PROBLEM TO BE SOLVED: To provide a lithography apparatus and a method of cleaning such apparatus. SOLUTION: The immersion lithography apparatus reduces contamination of immersion liquid due to topcoat fragments of a substrate or an upper face of a substrate table, resists, residual particles, and the like; and accordingly, focusing defects are reduced; and as a countermeasure which prolongs life expectancy of components of the immersed lithography apparatus, an inlet is provided to supply cleaned liquid in a space between an object such as the substrate positioned on the substrate table and the substrate table. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus in which liquid can be drained through a gap between, for example, an edge of an object and a substrate table on which the object is set. SOLUTION: The liquid immersion lithographic apparatus has a drain formed for draining the liquid through the gap between an edge of a substrate and the substrate table on which the substrate is supported. The drain is provided with a means which feeds the liquid to the drain irrespective of a position of the substrate table and/or a means which saturates gas in the drain. These means reduce fluctuation in heat loss due to evaporation of the liquid in the drain. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus reducing latent adverse effect of liquid drops remained on a substrate table after light-exposure of a substrate. SOLUTION: The lithographic apparatus having a table including a target and/or a sensor and a liquid displacement device displacing a liquid from the target and/or the sensor using a localized gas flow is disclosed. The liquid displacement device can be disposed at various positions. For example, the liquid displacement device can be mounted on a liquid handling device at a light-exposure station and can be disposed adjacent to a transfer passage between the light-exposure station and a measuring station or adjacent to a load/unload station or the sensor in the transfer passage. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography apparatus and a method of cleaning such an apparatus.SOLUTION: An immersion lithography apparatus reduces contamination of immersion liquid due to topcoat fragments of a substrate W or an upper surface of a substrate table WT, resists, residual particles, and the like, and thus reduces focusing defects. As a measure to extend life expectancy of components of the immersion lithography apparatus, an inlet 122 is provided to supply cleaned liquid into a space between an object such as the substrate W positioned on the substrate table WT and the substrate table WT.
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus in which liquid can be drained through a gap between, for example, an edge of an object and a substrate table on which the object is disposed.SOLUTION: A liquid immersion lithographic apparatus includes a drain configured to drain liquid through a gap between an edge of a substrate and a substrate table on which the substrate is supported. The drain comprises: means for feeding the liquid to the drain regardless of a position of the substrate table; and/or means for saturating gas in the drain. These means reduce fluctuation of heat loss due to evaporation of the liquid in the drain.
Abstract:
METHODS RELATING TO IMMERSION LITHOGRAPHY AND AN IMMERSION LITHOGRAPHIC APPARATUS A method of operating a fluid confinement system of an immersion lithographic apparatus is disclosed. The performance of the liquid confinement system is measured in several different ways. On the basis of the result of the measurement of performance, a signal indicating, for example, that a remedial action may need to be taken is generated.