METHOD FOR CHARACTERIZING A STRUCTURE ON A MASK AND DEVICE FOR CARRYING OUT SAID METHOD

A method is provided for characterizing a mask having a structure, comprising the steps of: illuminating said mask under at least one illumination angle with monochromatic illuminating radiation, so as to produce a diffraction pattern of said structure that includes at least two maxima of adjacent d...

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description A method is provided for characterizing a mask having a structure, comprising the steps of: illuminating said mask under at least one illumination angle with monochromatic illuminating radiation, so as to produce a diffraction pattern of said structure that includes at least two maxima of adjacent diffraction orders, capturing said diffraction pattern, determining the intensities of the maxima of the adjacent diffraction orders, determining an intensity quotient of the intensities. A mask inspection microscope for characterizing a mask in conjunction with the performance of the inventive method is also provided.
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subjects APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
TESTING
title METHOD FOR CHARACTERIZING A STRUCTURE ON A MASK AND DEVICE FOR CARRYING OUT SAID METHOD
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