Abstract:
A patterning device support for controlling a temperature of a patterning device can include a movable component. The movable component can include a gas inlet for supplying a gas flow across a surface of the patterning device and a gas outlet for extracting the gas flow. The patterning device support can also include a gas flow generator coupled to a duct, for recirculating the gas flow from the gas outlet to the gas inlet.
Abstract:
A patterning device support for controlling a temperature of a patterning device can include a movable component. The movable component can include a gas inlet for supplying a gas flow across a surface of the patterning device and a gas outlet for extracting the gas flow. The patterning device support can also include a gas flow generator coupled to a duct, for recirculating the gas flow from the gas outlet to the gas inlet.
Abstract:
A system for controlling temperature of a patterning device in a lithographic apparatus is discussed. The system includes a patterning device support configured to support a patterning device and a reticle cooling system configured to provide substantially uniform temperature distribution across the patterning device. The reticle cooling system includes a first and second array of gas inlets configured to provide a first and second gas flow along a first and second direction across a surface of the patterning device, respectively, where first and second directions are opposite to each other. The reticle cooling system further includes a switching control system configured to control operation of the first and second arrays of gas inlets.
Abstract:
An apparatus, system, and method cool a patterning device by supplying a non-uniform gas flow. The apparatus and system include a gas supply structure that supplies a gas flow across the first surface of the patterning device. The gas supply structure includes a gas supply nozzle specially configured to create a non-uniform gas flow distribution. A greater volume or velocity of the gas flow is directed to desired portion of the patterning device.
Abstract:
A patterning device support (1100) for controlling a temperature of a patterning device (1102) can include a movable component (1104). The movable component can include a gas inlet (1108) for supplying a gas flow across a surface of the patterning device and a gas outlet (1110) for extracting the gas flow. The patterning device support can also include a gas flow generator (1118) coupled to a duct (1114, 1116) for recirculating the gas flow from the gas outlet to the gas inlet.