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Class 356/400 - With light detector (e.g., photocell)


Subclass of Class 356 - Optics: measuring and testing
Definition: Subject matter including means responsive to light.
No. of patents: 1140
Last issue date: 05/29/2012


1                      
NumberTitleIssue Date
8189195Inspection method and apparatus, lithographic apparatus, lithographic processing cell and device manufacturing method
A method of measuring a property of a substrate includes generating a patterned mask configured to cause a radiation beam passing through the mask to acquire the pattern, simulating radiating the substrate with a patterned radiation beam that has been patterned usin...
05/29/2012
8125642Process to optically align a photoreceiver with a laser transmitter source in a laser rangefinder system
A process for optically aligning a laser rangefinder that includes the steps of providing a laser rangefinder having a laser source, a photodetector lens and a photodetector, providing a fiber optic travel path, aligning the laser source to the fiber optic travel pa...
02/28/2012
8094310Optical alignment tool and method of alignment
An alignment tool for use in calibrating an optical bench and/or alignment of an optical system such as a collector optical system for EUV and X-ray applications is disclosed. The optical system includes multiple nested mirrors attached to a mechanical support. The ...
01/10/2012
8085400Alignment device and method for optical system
An alignment device is provided for aligning a primary mirror with a secondary mirror in an optical system having the primary mirror and the secondary mirror arranged so as to face each other along the optical axis. The alignment device has a dichroic film formed on...
12/27/2011
8049891Adjustment method for position detection apparatus, exposure apparatus, and device fabrication method
The present invention provides an adjustment method for a position detection apparatus which comprises an optical system including first and second optical members whose positions can be changed, and detects a position of an object, comprising the steps of calculati...
11/01/2011
7999939Real time telecentricity measurement
Systems and methods are provides for measuring and correcting for a given telecentricity in a lithographic apparatus. A radiation beam is partitioned into a plurality of beams, each of which is modulated using an array of individually controllable elements and proje...
08/16/2011
7940392Lithographic apparatus, device manufacturing method and device manufactured thereby
The X, Y and Rz positions of a mask stage are measured using two optical encoder-reading heads measuring displacements of respective grid gratings mounted on the mask stage. The grid gratings are preferably provided on cut-away portions of the mask table so as to be...
05/10/2011
7940391Pre-aligned metrology system and modules
A Pre-Aligned Metrology System comprising a number of Pre-Aligned Metrology Assemblies and Pre-Aligned Metrology Modules for measuring a target on a wafer. The Pre-Aligned Metrology Assemblies and Pre-Aligned Metrology Modules can reduce the maintenance down time an...
05/10/2011
7859667Slide misload detection system and method
A system and method for determining whether one or more slides are loaded properly within a cassette. Each slide includes one or more transparent regions and one or more non-transparent regions. The slides are between a light source and a sensor. The light source ge...
12/28/2010
7852478Detecting assembly for a multi-axis machine tool
A detecting assembly for multi-axis machine tools having a spindle and a turntable and has a detector, a lens device and a computer. The detector is connected to the spindle and has a mounting frame and two detecting segments. The mounting frame is connected to the ...
12/14/2010
7847938Alignment system for optical lithography
An alignment system for optical lithography uses cameras fixed to a movable stage and to a lithography unit to view unique microscopic non-uniformities that are inherent to the surface of a work piece, e.g., metal or ceramic microcrystalline grains, for position ref...
12/07/2010
7777884Method and system for optimizing sub-nanometer critical dimension using pitch offset
A method and a system are provided for calibrating metrological tools used to measure features of a semiconductor device. A critical dimension (CD) ruler defines a known pitch plus a pitch offset. A photoresist layer is measured to determine a measured pitch whereup...
08/17/2010
7724370Method of inspection, a method of manufacturing, an inspection apparatus, a substrate, a mask, a lithography apparatus and a lithographic cell
Each target used in a method of measuring overlay using a scatterometer includes a first portion and a second portion, the first portion has features varying only in a first direction and the second portion has features only varying in a second direction. The first ...
05/25/2010
7671990Cross hatched metrology marks and associated method of use
The present invention is directed to novel metrology marks and methods for their use. The marks comprise cross hashed overlay metrology marks formed on a substrate including a plurality of target regions. The mark including a first grating structure formed in one la...
03/02/2010
7561270Lithographic apparatus, device manufacturing method and device manufactured thereby
The X, Y and Rz positions of a mask stage are measured using two optical encoder-reading heads measuring displacements of respective grid gratings mounted on the mask stage. The grid gratings are preferably provided on cut-away portions of the mask table so as to be...
07/14/2009
7525659System for detection of water defects
Fast on-line electro-optical detection of wafer defects by illuminating with a short light pulse from a repetitively pulsed laser, a section of the wafer while it is moved across the field of view of an imaging system, and imaging the moving wafer onto a focal plane...
04/28/2009
7511816Methods and systems for determining drift in a position of a light beam with respect to a chuck
Methods and systems for determining drift in a position of a light beam with respect to a chuck are provided. One method includes illuminating a surface with the light beam. The surface has a predetermined position with respect to the chuck during illumination. The ...
03/31/2009
7508514Correction of off-axis translation of optical elements in an optical zoom assembly
A laser beam may be used to provide a virtual reference axis of travel for the in-axis direction of motion of lenses in a zoom assembly to be positioned during a zoom operation. The virtual reference axis is projected along the optical axis, parallel to existing mec...
03/24/2009
7436513Wafer pre-alignment apparatus and method
A wafer pre-alignment apparatus according to this invention includes a wafer rotating member, a rotation detecting member, a light emitting member for emitting light toward the periphery of the wafer, a COD linear sensor linearly arranged and signal processing membe...
10/14/2008
7433038Alignment of substrates for bonding
An alignment apparatus for a substrate bonding system is provided with a first optical arm arranged to direct onto a detector radiation from a first alignment mark on a first substrate, and a second optical arm arranged to direct onto the detector radiation from a s...
10/07/2008
7414713Method of measuring focal point, instrument used therefor, and method of fabricating semiconductor device
A shape value of a pattern having a pivotal characteristic is measured (step S1), an exposure energy variation is detected from the measured value, a first data base is accessed using a result of the measurement of the shape value (Step S2), an exposur...
08/19/2008
7414722Alignment measurement arrangement and alignment measurement method
The invention provides an alignment measurement arrangement having a broadband source, an optical system and a detector. The broadband source is arranged to generate a radiation beam with a first and second range of wavelengths. The optical system is arranged to rec...
08/19/2008
7405810Method and apparatus for positioning a substrate on a substrate table
The invention relates to a method for positioning a substrate relative to a substrate table, is presented. When the substrate is positioned on the substrate table for a first time, a first relative position of the substrate with respect to the substrate table is det...
07/29/2008
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
7388663Optical position assessment apparatus and method
A lithographic apparatus comprises a substrate table that supports a substrate having alignment marks on a surface thereof. The apparatus further comprises a frame moveable relative to the substrate to provide for a scanning or stepping mode of operation. An array o...
06/17/2008
7385700Management system, apparatus, and method, exposure apparatus, and control method therefor
An exposure apparatus performs AGA measurement by using a predetermined sample shot group formed on a wafer, and decides an alignment parameter. The exposure apparatus executes wafer alignment processing and exposure processing by using the alignment parameter. The ...
06/10/2008
7375361Optical alignment device for machine tool
The orientation of a machine 2 relative to a work-piece 10 is manually controlled by means of an alignment device 4. The device 4 includes a light source 24 rigidly attached to a foot 12 that is resiliently movably attached ...
05/20/2008
7375795Lithographic apparatus, device manufacturing method, and device manufactured thereby
Substrate processing apparatus includes a lithographic apparatus which comprises an illumination system for supplying a projection beam of radiation, an array of individually controllable elements serving to impart the projection beam with a pattern in its cross-sec...
05/20/2008
7369215Laser crystallization apparatus
A laser crystallization apparatus has a light source, a phase shifter which modulates a laser light from the light source, an illumination system which is provided between the light source and the phase shifter, homogenizes a light intensity of the laser light from ...
05/06/2008
7369216Lithographic system, method for adapting transmission characteristics of an optical pathway within a lithographic system, semiconductor device, method of manufacturing a reflective element for use in a lithographic system, and reflective element manufactured thereby
A lithographic system includes a radiation system configured to provide a beam of radiation; an illumination system configured to condition the beam of radiation; a support configured to support a patterning device, the patterning device configured to impart the pro...
05/06/2008
7369237Substrate processing apparatus and substrate processing system
It is an object of the present invention to provide a substrate processing apparatus, comprising a housing body mounting unit that is capable of mounting a plurality of housing bodies which can house a plurality of substrates, a processing apparatus main body for pr...
05/06/2008
7368206Automated overlay metrology system
Non-imaging measurement is made of misalignment of lithographic exposures by illuminating periodic features of a mark formed by two lithographic exposures with broadband light and detecting an interference pattern at different wavelengths using a specular spectrosco...
05/06/2008
7365295Image inspection system for correcting focal position in autofocusing
An image inspection system includes a mount stage for a subject; an observation optical system for imaging light reflected by the subject; a focal position moving mechanism for relatively moving a position of the observation optical system in a depth direction of fo...
04/29/2008
7365848System and method using visible and infrared light to align and measure alignment patterns on multiple layers
A system and method are used to increase alignment accuracy of feature patterns through detection of alignment patterns on both a surface layer and at least one below surface layers of an object. Visible light is used to detect alignment patterns on the surface laye...
04/29/2008
7362436Method and apparatus for measuring optical overlay deviation
An apparatus and method analyze overlay deviation in alignment between a first mark and a second mark that are formed on a substrate. In particular, a relationship between changes in overlay deviation values and changes in focus position of the substrate for a plura...
04/22/2008
7362424Compositions and methods for drop boundary detection and radiation beam alignment
The invention provides an apparatus and method for determining the position of a radiation beam. The apparatus includes (a) a first reflective surface and a second reflective surface, the reflective surfaces being placed to form the reflective exterior of a wedge; (...
04/22/2008
7356936Apparatus and method for measuring coating accumulations in a spray booth
A method and apparatus are provided for viewing an object (such as a coating overspray accumulation) disposed in a difficult to view area (such as the underside of a lower trough or weir of a cleaning apparatus) and for measuring a distance between first and second ...
04/15/2008
7359053Optical array with beam alignment feature
An array of optical elements for processing a spatially dispersed optical beam including monitoring optical elements for determining the position of the optical beam in the array is disclosed. The monitoring optical elements have a width that varies in ay direction ...
04/15/2008
7348574Position measurement system and lithographic apparatus
A position measurement system for measuring a position of an object is described, the system including: a first incremental measurement unit for measuring a first number of first distance steps in a distance between a reference frame and the object, wherein the firs...
03/25/2008
7339676Optical method and system for the characterization of laterally-patterned samples in integrated circuits
Disclosed is a method for characterizing a sample having a structure disposed on or within the sample, comprising the steps of applying a first pulse of light to a surface of the sample for creating a propagating strain pulse in the sample, applying a second pulse o...
03/04/2008
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