Method and Apparatus for Angular-Resolved Spectroscopic Lithography Characterization

An apparatus and method to determine a property of a substrate by measuring, in the pupil plane of a high numerical aperture lens, an angle-resolved spectrum as a result of radiation being reflected off the substrate. The property may be angle and wavelength dependent and may include the intensity o...

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Hauptverfasser: BLEEKER, Amo Jan, VAN KRAAIJ, Markus Geradus Maritinus, VAN DOMMELEN, Youri Johannes, PELLEMANS, Henricus Petrus Maria, VAN DER SCHAAR, Maurits, LUEHRMANN, Paul Frank, GROUWSTRA, Cédric Désiré, DEN BOEF, Arie Jeffrey, DUSA, Mircea, KIERS, Antoine Gaston Marie
Format: Patent
Sprache:eng
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Zusammenfassung:An apparatus and method to determine a property of a substrate by measuring, in the pupil plane of a high numerical aperture lens, an angle-resolved spectrum as a result of radiation being reflected off the substrate. The property may be angle and wavelength dependent and may include the intensity of TM- and TE-polarized radiation and their relative phase difference.