Abstract:
PROBLEM TO BE SOLVED: To provide a heat adjusting system capable of using a small cooling flow path with improved cooling efficiency.SOLUTION: A two-phase heat adjusting system includes an evaporator 3 thermally contacting one part 1 of a lithographic device and extracting heat from one part by evaporating a fluid inside the evaporator; a condenser 5 for removing heat by condensing the fluid inside the condenser; fluid lines 7, 8 arranged between the evaporator 3 and the condenser 5; a pump 14 for circulating the fluid in a circuit; an accumulator 16 constituted to hold the fluid and having a heat exchanger 18 fluid-communicated with the circuit and transmitting heat between the circuit and the fluid inside the heat exchanger; a temperature sensor 23 constituted to provide measurement signals indicating a temperature of the fluid; and a control device 27 constituted to maintain a substantially constant temperature of the fluid inside the circuit by adjusting an amount of heat transmitted by the heat exchanger 18 between the it and the fluid inside the accumulator based on the measurement signals.
Abstract:
PROBLEM TO BE SOLVED: To provide a system that reduces uneven cooling of an object so that the object may be maintained at a substantially uniform temperature. SOLUTION: A lithographic apparatus is provided that includes a substrate holder configured to hold a substrate, and a heat pipe configured to maintain the substrate holder at a substantially uniform temperature. The heat pipe has a chamber containing a liquid reservoir and a vapor space, and a heating element at least partly in contact with liquid in the chamber. COPYRIGHT: (C)2011,JPO&INPIT
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:
A two-phase thermal conditioning system for thermal conditioning a part of a lithographic apparatus, includes an evaporator to be positioned in thermal contact with the part of the lithographic apparatus for extracting heat from the part by evaporation of a fluid inside the evaporator; a condenser to be positioned at a distance from the part of the lithographic apparatus for removing heat from the fluid inside the condenser by condensation of the fluid inside the condenser; fluid lines arranged between the evaporator and the condenser to form a circuit in which fluid is able to flow; a pump arranged in the circuit to circulate the fluid in the circuit; an accumulator configured to hold fluid, wherein the accumulator is in fluid communication with the circuit and comprises a heat exchanger to transfer heat from or to fluid inside the accumulator; a temperature sensor configured to provide a measurement signal representative of the temperature of the fluid; and a controller configured to maintain a substantially constant temperature of the fluid inside the circuit by regulating the amount of heat transferred by the heat exchanger from or to fluid inside the accumulator based on the measurement signal.(Figure 2)