Abstract:
PROBLEM TO BE SOLVED: To provide an immersion type lithography projection apparatus with improved functionality. SOLUTION: The lithography projection apparatus includes: a radiation system Ex, IL also equipped with a radiation source LA, for providing the projection beams PB of radiation; a first object table (mask table) MT connected to a first positioning means, for correctly positioning a mask with respect to a member PL; a second object table (substrate table) WT connected to a second positioning means, for correctly positioning a substrate with respect to the member PL; and a projection system PL for forming an image of the radiated part of the mask MA on the target part C of the substrate W. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for accurately aligning and/or leveling a substrate in an immersion lithography apparatus. SOLUTION: A map of the surface of a substrate is generated at a measurement station. The substrate is then moved to a place where a space between a projection lens and the substrate is filled with a liquid. The substrate is then aligned using, for example, a transmission image sensor and, using the previous mapping, the substrate can be accurately exposed. Thus the mapping does not take place in a liquid environment. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for accurately aligning and/or leveling a substrate in an immersion lithography apparatus. SOLUTION: A map of the surface of a substrate is formed at a measurement station. Then the substrate is moved to the place of which space between a projection lens and the substrate is filled with liquid. Subsequently, the substrate is aligned with, for example, a transmission image sensor to expose exactly according to the map formed previously. In this way, the mapping is never carried out under an environment of liquid. COPYRIGHT: (C)2008,JPO&INPIT
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 improve the lithography performance of an apparatus having a liquid that fills the space between a final element of a projection system and a substrate. SOLUTION: A lithographic apparatus and a device manufacturing method make use of a high-refractive index liquid, confined in a reservoir 13, at least partly filling a lithography field between a final element of a projection lens and the substrate. Bubbles forming in the liquid resulting from dissolved atmospheric gases or the gas discharge from an apparatus element exposed to the liquid are detected and removed so that they do not interfere with the exposure, to cause burning defects on the substrate. The detection can be carried out, by measuring the frequency dependence of ultrasonic attenuation in the liquid and the removal of bubbles can be implemented by: degassing and pressurizing the liquid; isolating the liquid from the atmosphere; supplying a continuous flow of liquid through the lithography field using liquids of low surface tension; and further, phase-shifting the ultrasonic standing-wave nodes. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an immersion type lithography projection apparatus with improved functionality. SOLUTION: The lithography projection apparatus includes: a radiation system Ex, IL also equipped with a radiation source LA, for providing the projection beams PB of radiation; a first object table (mask table) MT connected to a first positioning means, for correctly positioning a mask with respect to a member PL; a second object table (substrate table) WT connected to a second positioning means, for correctly positioning a substrate with respect to the member PL; and a projection system PL for forming an image of the radiated part of the mask MA on the target part C of the substrate W. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for accurately aligning and/or leveling a substrate in an immersion lithography apparatus. SOLUTION: A map of the surface of a substrate is formed at a measurement station. Then the substrate W is moved to the place of which space between a projection lens and the substrate is filled with liquid. Subsequently, the substrate is aligned with, for example, a transmission image sensor to expose exactly according to the map formed previously. In this way, the mapping is never carried out under an environment of liquid. COPYRIGHT: (C)2004,JPO
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.