Abstract:
PROBLEM TO BE SOLVED: To provide a fluid handling structure that reduces a change in refractive index and a focusing error resulting from a temperature change in a space by reducing a temperature change while in the fluid handling structure of immersion liquid provided to the space by the fluid handling structure.SOLUTION: The fluid handling structure is configured to supply and confine immersion liquid to a space defined between a projection system and a contacting surface facing to the fluid handling structure. The fluid handling structure includes a supply passage formed therein for passing fluid through the fluid handling structure from the outside to the space, and a heat insulator positioned at least partly adjacent to the supply passage in order to thermally insulate fluid in the supply passage from a heat load induced in the fluid handling structure.
Abstract:
PROBLEM TO BE SOLVED: To provide a radiation source coping with infrared radiation.SOLUTION: A radiation source has a collector comprising a fuel source constituted to supply fuel to a plasma emission position to evaporate the fuel and form a plasma, constituted to collect EUV radiation emitted by the plasma and guide it toward an intermediate focus, and comprising a diffraction grating constituted to diffract infrared radiation emitted by the plasma. The radiation source is also a radiation conduit arranged in front of the intermediate focus, and the radiation conduit comprises an inlet aperture connected to an outlet aperture by a main body tapered inward. The radiation conduit comprises an inner portion and an outer portion. The inner portion is nearer to the intermediate focus than the outer portion, and the inner portion is constituted to reflect incident diffraction infrared radiation toward the outer portion.
Abstract:
PROBLEM TO BE SOLVED: To provide a system for reducing the non-uniform cooling of an object such that the object is maintained at a substantially uniform temperature. SOLUTION: The heat pipe maintains the object at a substantially uniform temperature. The heat pipe includes a liquid reservoir and a vapor space, a chamber with one part defined by a condensation face, and a liquid transport device applying force adding to gravity to a liquid and transporting the liquid from the condensation face to the reservoir. The condensation face is formed such that a condensation liquid is moved toward the liquid transport device along the condensation face. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic process where a process error caused by one or more heat sources can be reduced or minimized. SOLUTION: An immersion lithographic apparatus is provided. The immersion lithographic apparatus has a substrate table including a drain so configured as to receive an immersion liquid leaking into a gap between the edge of a substrate on the substrate table and the edge of a concave portion where the substrate is disposed. By directing one or more jets of the liquid toward the back side of a portion that supports the substrate, at least a portion of the concave portion that supports the substrate is thermally adjusted, thus providing a thermal adjustment system in the immersion lithographic apparatus. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system which improves stability of a meniscus or reduces incompleteness of the meniscus, where the system is, for example, to reduce a possibility of generating a bubble or releasing a drop.SOLUTION: A cover for a substrate table in an immersion lithographic apparatus is provided to cover at least a gap between a substrate and a recess in the substrate table for receiving the substrate.
Abstract:
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.
Abstract:
The invention relates to a pellicle assembly comprising a pellicle frame defining a surface onto which a pellicle is attached. The pellicle assembly comprises one or more three-dimensional expansion structures that allow the pellicle to expand under stress. The invention also relates to a pellicle assembly for a patterning device comprising one or more actuators for moving the pellicle assembly towards and way from the patterning device.