ESTIMATION OF SPECTRAL FEATURE OF PULSED LIGHT BEAM

A method is described for estimating a spectral feature of a pulsed light beam produced by an optical source and directed toward a wafer of a lithography apparatus. The method includes receiving a set of N optical spectra of pulses of the light beam; saving the received N optical spectra to a saved...

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Hauptverfasser: DUFFEY, Thomas Patrick, GODFRIED, Herman Philip
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creator DUFFEY, Thomas Patrick
GODFRIED, Herman Philip
description A method is described for estimating a spectral feature of a pulsed light beam produced by an optical source and directed toward a wafer of a lithography apparatus. The method includes receiving a set of N optical spectra of pulses of the light beam; saving the received N optical spectra to a saved set; transforming the optical spectra in the saved set to form a set of transformed optical spectra; averaging the transformed optical spectra to form an averaged spectrum; and estimating a spectral feature of the pulsed light beam based on the averaged spectrum.
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language eng ; fre ; ger
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subjects APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
COLORIMETRY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
RADIATION PYROMETRY
TESTING
title ESTIMATION OF SPECTRAL FEATURE OF PULSED LIGHT BEAM
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