Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus for reducing residual liquid left on a surface of a substrate, after exposure by a projection system.SOLUTION: In a lithographic apparatus, a localized area of a surface of a substrate under a projection system PL is immersed in liquid. Height of a liquid supply system 310 above a surface of a substrate W can be varied by using actuators 314. A control system maintains the liquid supply system 310 at predetermined height above the surface of the substrate W, by using feedforward control or feedback control with input of the surface height of the substrate W.
Abstract:
PROBLEM TO BE SOLVED: To provide an immersion-type lithography projection device with improved functionality.SOLUTION: An immersion-type lithography projection device comprises: a radiation systems Ex, IL which are provided with a radiation source LA and supply projection beams PB of radiation; a first object table (mask table) MT connected to first positioning means for correctly positioning a mask with respect to a member PL; a second object table (substrate table) WT connected to second positioning means for correctly positioning a substrate with respect to the member PL; and a projection system PL for forming an image of a radiated part of the mask MA on a target part C of a substrate W.
Abstract:
PROBLEM TO BE SOLVED: To provide an immersion-type lithographic projection apparatus with improved functionality.SOLUTION: The immersion-type lithographic projection apparatus comprises: a radiation system Ex which is provided with a radiation source LA and supplies a radiation projection beam PB; an illumination system IL; a first object table (mask table) MT connected to first positioning means for accurately positioning a mask to a member PL; a second object table (substrate table) WT connected to second positioning means for accurately positioning the substrate to the member PL; and a projection system PL for imaging an irradiated part of a mask MA on a target part C of a substrate W. This apparatus also includes at least one sensor that is disposed so as to be illuminated with a radiation projection beam that has passed through an immersion liquid.
Abstract:
PROBLEM TO BE SOLVED: To provide an immersion-type lithography projection device with improved functionality.SOLUTION: An immersion-type lithography projection device comprises: a radiation systems Ex, IL which are provided with a radiation source LA and supply projection beams PB of radiation; a first object table (mask table) MT connected to first positioning means for correctly positioning a mask with respect to a member PL; a second object table (substrate table) WT connected to second positioning means for correctly positioning a substrate with respect to the member PL; and a projection system PL for forming an image of a radiated part of the mask MA on a target part C of a substrate W.
Abstract:
PROBLEM TO BE SOLVED: To provide an immersion-type lithographic projection apparatus with improved functionality.SOLUTION: The immersion-type lithographic projection apparatus comprises: a radiation system Ex which is provided with a radiation source LA and supplies a radiation projection beam PB; an illumination system IL; a first object table (mask table) MT connected to first positioning means for accurately positioning a mask to a member PL; a second object table (substrate table) WT connected to second positioning means for accurately positioning the substrate to the member PL; and a projection system PL for imaging an irradiated part of a mask MA on a target part C of a substrate W. This apparatus also includes at least one sensor that is disposed so as to be illuminated with a radiation projection beam that has passed through an immersion liquid.
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography projection apparatus in which the space between the final element of a projection system, where the liquid loss from a supply system is minimized during exposure of the edge part of a substrate, and the substrate is filled with a liquid.SOLUTION: An edge sealing member 17 has an upper primary surface which is substantially in flush with the upper primary surface of a substrate W, and surrounds the substrate W or other object on a substrate table at least partially. Consequently, catastrophic liquid loss is prevented when the image at an edge part of the substrate W is captured or the edge part is illuminated even if the section under a projection lens PL is operated.
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography projection apparatus in which a space between a substrate and a projection system is filled with a liquid while minimizing a quantity of the liquid required to be accelerated during a stage operation.SOLUTION: In a lithography projection apparatus, a space between a final element of a projection system and a substrate table of the lithography projection apparatus is surrounded by a sealing member. A gas seal is formed between the sealing member and a surface of the substrate and a liquid is confined in the space.