Abstract:
PROBLEM TO BE SOLVED: To provide an immersion type lithography projection apparatus with improved functionality. SOLUTION: The highlights of this invention are that the lithography apparatus is equipped with a radiation system Ex to provide the projection beams PB of radiation including a radioactive source LA, a primary object table (mask table) MT connected to a primary positioning means to correctly position a mask against IL and a member PL, a secondary object table (substrate table) WT connected to a secondary positioning means to correctly position a substrate against the member PL, and a projection system PL to form an image of the irradiated part of the mask MA on the target part of the substrate W. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic projection equipment including a means which selectively penetrates a projection beam, before imaging the pattern-formed beam on a substrate. SOLUTION: The means can include one of the following devices, that is, a selective penetration device, located downstream of a patterning means in a direction of the projection beam, a masking blade which is fixed or is movably set in a scanning system, and an arrayed, exchangeable element. The means can be located in a structure of a mask table, a flame, or the lithographic projection equipment. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To disclose a lithography projector in which a space between the final element of a projection system and a substrate is filled with liquid. SOLUTION: Hermetic edge sealing members 17 and 117 surround a substrate W on a substrate table WT or another object at least partially thus preventing the catastrophic loss of the liquid when the edge part of the substrate is imaged or illuminated. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an improved precision measurement system which is not easily influenced by errors and does not occupy a large space.SOLUTION: A system to detect motion of a main body comprises: the main body; a first diffraction grating 40, 42 substantially stationarily attached to a reference frame; a second diffraction grating 50, 52 attached to the main body; and a detector 60, 61, 62, 63 configured to receive one or more radiation beams diffracted by the first and second diffraction gratings and detect motion of the main body relative to the reference frame. The detector 60, 61, 62, 63 is coupled to the main body, and movable relative to the main body.
Abstract:
PROBLEM TO BE SOLVED: To provide more uniform EUV radiation.SOLUTION: A radiation source configured to generate EUV radiation comprises: a fuel droplet generator configured to deliver a fuel droplet to an interaction point; an optical system configured to deliver fuel vaporizing and exciting radiation to the interaction point to generate plasma; and a collector arranged to collect the EUV radiation emitted by the plasma. The optical system is configured such that in use the fuel vaporizing and the exciting radiation are entered upon more than one side of the fuel droplet at the interaction point.
Abstract:
PROBLEM TO BE SOLVED: To improve mechanical insulation between elements of a projection system.SOLUTION: A lithographic apparatus having means for reducing the extent to which vibrations propagate between a first element of a projection system and a second element of the projection system, and a device manufacturing method are disclosed. The method includes the use of a plurality of elastic members in series as a part of a vibration insulation system, a plurality of insulation frames for separately supporting first and second projection system frames, and corrected connection positions for the interaction between the first and second projection system frames and the insulation frame(s).
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus that is provided with a projection lens system having a gas conditioned environment that is less sensitive to ambient atmosphere variations.SOLUTION: A lithographic apparatus is disclosed. The lithographic apparatus includes a projection system configured to project a patterned radiation beam onto a target portion of a substrate. The projection system includes a housing and a plurality of optical elements arranged in the housing. The lithographic apparatus also includes an inlet for feeding conditioned gas to the housing and a gas exhaust for exhausting the conditioned gas from the housing for providing a gas conditioned environment in the housing. At least one gate is provided for providing communication of the gas conditioned environment with ambient atmosphere. The gate is arranged to provide a predetermined leakage of the conditioned gas to the ambient atmosphere.
Abstract:
PROBLEM TO BE SOLVED: To enhance projection accuracy in a lithographic device. SOLUTION: The lithographic device is equipped with an illumination system constituted to adjust an irradiation beam, a supporting body constituted to support a patterning device capable of forming a patterned irradiation beam by setting a pattern on the sectional surface of the irradiation beam, a substrate table constituted to support a substrate, and a projection system constituted to project the patterned irradiation beam to the target of the substrate. Furthermore, the lithographic device has a projection and transcription measuring structure to measure the optical projection and transcription data of the projection system. The projection and transcription measuring structure is equipped with an optical device to introduce a measuring beam into the projection system during scanning, a detector to detect the measuring beam passing through the projection system during scanning, and a measuring processor to determine the optical projection and transcription data from the detected measuring beam. The optical device and the detector are arranged at the upper-stream end of the projection system. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a radiation system capable of improving conversion efficiency of EUV radiation/emission plasma, and to provide a lithographic device.SOLUTION: The radiation system includes a target material source for supplying droplets of a target material along a track, and a laser system including an amplifier and an optical system. The optical system establishes a first beam path which passes through the amplifier and a first point on the track, and establishes a second beam path which passes through the amplifier and a second point on the track. When a photon emitted from the amplifier is reflected along the first beam path by the droplet of the target material at the first point on the track, the laser system generates a first pulse of laser radiation. When a photon emitted from the amplifier is reflected along the second beam path by the droplet of the target material at the second point on the track, the laser system generates a second pulse of laser radiation.
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus, an alignment apparatus, a device manufacturing method, an alignment method, and a method of converting an apparatus.SOLUTION: A detector 22 detects the amount of liquid in the optical path of a projection beam PB or alignment beam and then a controller 21 determines optical elements necessary to focus the projection beam or alignment beam on the surface of a substrate from among a plurality of compensating optical elements 9, 10, 11, 12. The appropriate optical elements are arranged directly in the projection beam path or the alignment beam path as a final element of the projection system or the projection alignment system.