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Class 356/500 - X-Y and/or Z table


Subclass of Class 356 - Optics: measuring and testing
Definition: Displacement or distance having specific structure allowing
No. of patents: 261
Last issue date: 02/28/2012


1              
NumberTitleIssue Date
8125650Reflector, optical element, interferometer system, stage device, exposure apparatus, and device fabricating method
A reflecting member has: a first reflecting surface, which extends in a second direction that includes a first direction component; a second reflecting surface, which extends in a third direction that includes the first direction component, that is substantially sym...
02/28/2012
8064067Exposure apparatus and exposure method
Disclosed is an exposing apparatus which projects an image of a pattern by a projection optical system, comprising a measuring unit having a sensor which measures a positional relationship between the projection optical system and a member which is positioned in rel...
11/22/2011
7978340System and method for determining positions of structures on a substrate
A system and a method for determining positions of structures on a substrate are disclosed. The system includes at least one measurement table (20) movable in the X-coordinate direction and in the Y-coordinate direction, a measurement objective (9) and...
07/12/2011
7978339Lithographic apparatus temperature compensation
A lithographic apparatus includes a position measurement system to determine along a measurement path a position of a first part of the lithographic apparatus with respect to a position of a second part of the lithographic apparatus. The position determination syste...
07/12/2011
7969580Method and system for step-and-align interference lithography
A method for step-and-align interference lithography is provided in the present invention, by which a displacement error relating to the moving of an interference light beam as the source of the interference light beam is being carried to move by a carrier is measur...
06/28/2011
7961334Coordinate measuring machine for measuring structures on a substrate
A coordinate measuring machine (1) for measuring structures (3) on a substrate (2) including a measurement table (20) movable in the X-coordinate direction and in the Y-coordinate direction, a measurement objective (9), at least on...
06/14/2011
7948635Method for determining positions of structures on a substrate
A system for determining positions of structures on a substrate is disclosed. The system includes a plurality of stations enclosed by a housing. At least one of the stations inside the housing is designed to be movable. The housing is provided with a filter fan unit...
05/24/2011
7929149Coordinate measuring machine and a method for correcting non-linearities of the interferometers of a coordinate measuring machine
A method and a coordinate measuring machine (1) are provided, wherein the non-linearities of an interferometer (24) can be corrected. A measuring stage (20) traversable in a plane (25a) is provided for measurement. The substrate (
04/19/2011
7907287Positioning apparatus, exposure apparatus and device manufacturing method in which a correction unit corrects a value measured by a selected measuring device
A positioning apparatus, which positions a stage, includes a measurement system that measures a position of the stage. The measurement system includes a plurality of measuring devices that are spaced apart from each other along a first direction and measure a positi...
03/15/2011
7903259Device for determining the position of at least one structure on an object, use of an illumination apparatus with the device and use of protective gas with the device
A device for determining the position of a structure (3) on an object (2) in relation to a coordinate system is disclosed. The object (2) is placed on a measuring table (20) which is movable in one plane (25a), wherein a blo...
03/08/2011
7903258System and method for positioning a product using a laser interferometer
A system for positioning a product, comprising a chuck for supporting the product, an intermediate stage supporting said chuck, and a stationary base supporting said intermediate stage. The chuck can move with respect to the intermediate stage in a first direction X...
03/08/2011
7876452Interferometric position-measuring devices and methods
Process tools and methods are disclosed that involve interferometric and other measurements of movements and positions relative to a process position, such as movements and positions of a stage relative to a lithographic optical system. An exemplary apparatus includ...
01/25/2011
7872763Device for measuring the position of at least one structure on a substrate
A device for measuring the position of at least one structure on a substrate is disclosed. The substrate to be measured is positioned in a mirror body. A flat insert is provided in the mirror body and is formed such that the substrate and the insert together always ...
01/18/2011
7864337Positioning apparatus, exposure apparatus, and device manufacturing method
A positioning apparatus comprises a first measuring device measuring a position of the stage in a first measuring range, a second measuring device measuring a position of the stage in a second measuring range having an overlapping range overlapping the first measuri...
01/04/2011
7835011Systems and methods for determining a position of a support
A method for determining a change in a position of a support is described. The method includes determining the change in the position of the support used in an imaging system, where determining the change includes computing the position by operating a photodetector ...
11/16/2010
7826063Compensation of effects of atmospheric perturbations in optical metrology
In general, in a first aspect, the invention features a method that includes using an interferometry assembly to provide three different output beams, each output beam including an interferometric phase related to an optical path difference between a corresponding f...
11/02/2010
7812965Multiple-degree of freedom interferometer with compensation for gas effects
The disclosure features multiple degree-of-freedom interferometers (e.g., non-dispersive interferometers) for monitoring linear and angular (e.g., pitch and/or yaw) displacements of a measurement object with compensation for variations in the optical properties of a...
10/12/2010
7812964Distance measuring interferometer and encoder metrology systems for use in lithography tools
In general, in one aspect, the invention features a system that includes a moveable stage, an interferometer configured to provide information about a first degree of freedom of the stage, an encoder configured to provide information about a second degree of freedom...
10/12/2010
7751060Position measuring method, position measuring system, and exposure apparatus
A position measuring system includes a laser interferometer, and a wavelength detection unit detecting the wavelength change of a laser beam. A phase compensation unit compensates for the wavelength change detected by the wavelength detection unit based on the phase...
07/06/2010
7751059Method for correcting disturbances in a level sensor light path
A level sensor for determining a height of a substrate. In one configuration, the level sensor forms part of a lithographic apparatus that includes a projection lens system. The level sensor generates one or more measurement beams and directs the measurement beam to...
07/06/2010
7738114Exposure apparatus configured to minimize effects of mechanism for measuring stage position on peripheral mechanism and device-manufacturing method
An exposure apparatus includes a stage configured to hold an original thereon and to move in a horizontal direction, a first interferometer configured to emit first measurement light used for measuring a position of the stage in a vertical direction thereof, a first...
06/15/2010
7733498Exposure apparatus, method of controlling the same, and manufacturing method
An exposure apparatus comprises an optical system support supporting a projection optical system, a stage surface plate, first stage and second stages, a first interferometer configured to measure stage position in a first area, a second interferometer configured to...
06/08/2010
7646488Positioning apparatus, exposure apparatus, and device manufacturing method
A positioning apparatus includes a stage base, a stage moving along a surface of the stage base, a cable having one end connected to the stage, and a straightening structure configured to straighten air currents around the cable. The straightening structure is provi...
01/12/2010
7636166Interferometer system for monitoring an object
In general, in one aspect, the invention features a system that includes a first object mounted relative to a second object, the first object being moveable with respect to the second object. The system includes a plurality of interferometers each configured to deri...
12/22/2009
7616322Cyclic error compensation in interferometry systems
An interference signal S(t) is provided from interference between two beams directed along different paths. The signal S(t) is indicative of changes in an optical path difference n{tilde over (L)}(t) between the different paths, where n is an average refractive inde...
11/10/2009
7548322Multi-axis interferometers and methods and systems using multi-axis interferometers
In general, in one aspect, the invention features an apparatus including a multi-axis interferometer configured to produce at least three output beams each including interferometric information about a distance between the interferometer and a measurement object alo...
06/16/2009
7548321Method for enhancing the measuring accuracy when determining the coordinates of structures on a substrate
A method for the high-precision measurement of coordinates on a substrate is disclosed. The substrate is placed on a stage moveable in X/Y coordinate directions. First, a plurality of images of a structure on a substrate are imaged by means of a 2-dimensional detect...
06/16/2009
7528960Method for enhancing the measuring accuracy when determining the coordinates of structures on a substrate
A method for the high-precision measurement of coordinates of at least one structure on a substrate. A stage traversable in X/Y coordinate directions is provided, which is placed in an interferometric-optical measuring system. The structure on the substrate is image...
05/05/2009
7518732Multi-axis interferometer system using independent, single axis interferometers
Improved systems, apparatus, and methods for detecting positions of moving stages and a reference position of a beam column are provided. For some embodiments, independent discrete interferometers may be utilized for distance measurements in each axis, rather than a...
04/14/2009
7515277Stage apparatus, control system, exposure apparatus, and device manufacturing method
A stage apparatus includes X- and Y-axis laser interferometers each of which measures the position a stage, a wavelength compensator which compensates for the wavelength change of a laser beam from each of the X- and Y-axis laser interferometers, a fan duct which is...
04/07/2009
7495771Exposure apparatus
In an exposure apparatus having a plurality of substrate stages moving between a plurality of stations, errors due to the combination of the stage and a position measuring unit, such as Abbe error and errors due to the surface configuration of a reflection mirror, a...
02/24/2009
7474409Lithographic interferometer system with an absolute measurement subsystem and differential measurement subsystem and method thereof
An improved lithographic interferometer system, is presented herein. The lithographic interferometer system comprises a beam generating mechanism, mirrors which reflect those beams, and detection devices for detecting an interference pattern of overlapping reflected...
01/06/2009
7450246Measuring device and method for determining relative positions of a positioning stage configured to be moveable in at least one direction
A measuring apparatus for determining relative positions of a positioning stage arranged in a moveable fashion in at least one direction by a predeterminable maximum traversing path. The measuring device comprises at least one interferometric measuring means and at ...
11/11/2008
7443511Integrated plane mirror and differential plane mirror interferometer system
A lithographic interferometer system includes a beam generating mechanism, mirrors which reflect those beams, and detection devices configured to detect an interference pattern of overlapping reflected beams. The beam generating mechanism includes a beam-splitter, w...
10/28/2008
7433050Exposure apparatus and exposure method
Disclosed is an exposing apparatus which projects an image of a pattern by a projection optical system, comprising a measuring unit having a sensor which measures a positional relationship between the projection optical system and a member which is positioned in rel...
10/07/2008
7433048Interferometer systems for measuring displacement and exposure systems using the same
Interferometer systems for measuring displacement include a displacement interferometer. This interferometer includes a displacement converter responsive to a measuring beam of light. The displacement converter is configured to transform movement thereof in a direct...
10/07/2008
7433049Multi-axis interferometer with procedure and data processing for mirror mapping
In general, in one aspect, the invention features methods that include locating a plurality of alignment marks on a moveable stage, interferometrically measuring a position of a measurement object along an interferometer axis for each of the alignment mark locations...
10/07/2008
7433018Pattern alignment method and lithographic apparatus
A method for aligning a substrate in a lithographic apparatus, the method including irradiating a first target portion of the substrate with a first patterned beam to form a first pattern on the substrate. Then, a second target portion of the substrate is irradiated...
10/07/2008
7397039Real-time compensation of mechanical position error in pattern generation or imaging applications
Improved systems, apparatus, and methods for detecting positions of moving stages and accurately compensating position error during operation (in “real time”) are provided. For some embodiments, rather than rely on two dimensional position measurements, measurem...
07/08/2008
7382469Exposure apparatus for manufacturing semiconductor device, method of exposing a layer of photoresist, and method of detecting vibrations and measuring relative position of substrate during an exposure process
Defects are prevented from occurring during an exposure process by detecting vibration of and measuring the relative position of components of the exposure apparatus. The exposure apparatus includes an external frame on which a reference mirror is disposed, a projec...
06/03/2008
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