REDUCING SPECKLE IN AN EXCIMER LIGHT SOURCE
A method includes: producing a light beam made up of pulses having a wavelength in the deep ultraviolet range, each pulse having a first temporal coherence defined by a first temporal coherence length and each pulse being defined by a pulse duration; for one or more pulses, modulating the optical ph...
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creator | op 't Root, Wilhelmus Patrick Elisabeth Maria Thornes, Joshua Jon Godfried, Herman Philip King, Brian Edward Everts, Frank Duffey, Thomas Patrick |
description | A method includes: producing a light beam made up of pulses having a wavelength in the deep ultraviolet range, each pulse having a first temporal coherence defined by a first temporal coherence length and each pulse being defined by a pulse duration; for one or more pulses, modulating the optical phase over the pulse duration of the pulse to produce a modified pulse having a second temporal coherence defined by a second temporal coherence length that is less than the first temporal coherence length of the pulse; forming a light beam of pulses at least from the modified pulses; and directing the formed light beam of pulses toward a substrate within a lithography exposure apparatus. |
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for one or more pulses, modulating the optical phase over the pulse duration of the pulse to produce a modified pulse having a second temporal coherence defined by a second temporal coherence length that is less than the first temporal coherence length of the pulse; forming a light beam of pulses at least from the modified pulses; and directing the formed light beam of pulses toward a substrate within a lithography exposure apparatus.</description><subject>APPARATUS SPECIALLY ADAPTED THEREFOR</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CINEMATOGRAPHY</subject><subject>COLORIMETRY</subject><subject>DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING</subject><subject>DEVICES USING STIMULATED EMISSION</subject><subject>ELECTRICITY</subject><subject>ELECTROGRAPHY</subject><subject>FREQUENCY-CHANGING</subject><subject>HOLOGRAPHY</subject><subject>MATERIALS THEREFOR</subject><subject>MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT</subject><subject>MEASURING</subject><subject>NON-LINEAR OPTICS</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICAL LOGIC ELEMENTS</subject><subject>OPTICS</subject><subject>ORIGINALS THEREFOR</subject><subject>PHOTOGRAPHY</subject><subject>PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES</subject><subject>PHYSICS</subject><subject>RADIATION PYROMETRY</subject><subject>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAOcnUJdfb0c1cIDnB19vZxVfD0U3D0U3CNcPb0dQ1S8PF09whRCPYPDXJ25WFgTUvMKU7lhdLcDMpuriHOHrqpBfnxqcUFicmpeakl8aHBRgZGhkbGlpaWFo6GxsSpAgDuCyW0</recordid><startdate>20210805</startdate><enddate>20210805</enddate><creator>op 't Root, Wilhelmus Patrick Elisabeth Maria</creator><creator>Thornes, Joshua Jon</creator><creator>Godfried, Herman Philip</creator><creator>King, Brian Edward</creator><creator>Everts, Frank</creator><creator>Duffey, Thomas Patrick</creator><scope>EVB</scope></search><sort><creationdate>20210805</creationdate><title>REDUCING SPECKLE IN AN EXCIMER LIGHT SOURCE</title><author>op 't Root, Wilhelmus Patrick Elisabeth Maria ; 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for one or more pulses, modulating the optical phase over the pulse duration of the pulse to produce a modified pulse having a second temporal coherence defined by a second temporal coherence length that is less than the first temporal coherence length of the pulse; forming a light beam of pulses at least from the modified pulses; and directing the formed light beam of pulses toward a substrate within a lithography exposure apparatus.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | APPARATUS SPECIALLY ADAPTED THEREFOR BASIC ELECTRIC ELEMENTS CINEMATOGRAPHY COLORIMETRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DEVICES USING STIMULATED EMISSION ELECTRICITY ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY MATERIALS THEREFOR MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS RADIATION PYROMETRY TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TESTING |
title | REDUCING SPECKLE IN AN EXCIMER LIGHT SOURCE |
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