公开(公告)号：US10241055B2

公开(公告)日：2019-03-26

申请号：US14264547

申请日：2014-04-29

Applicant: ASML Netherlands B.V.

Inventor： Arie Jeffrey Maria Den Boef ,  Arno Jan Bleeker ,  Youri Johannes Laurentius Maria Van Dommelen ,  Mircea Dusa ,  Antoine Gaston Marie Kiers ,  Paul Frank Luehrmann ,  Henricus Petrus Maria Pellemans ,  Maurits Van Der Schaar ,  Cedric Desire Grouwstra ,  Markus Gerardus Martinus Van Kraaij

IPC: G01B9/02 ,  G01N21/88 ,  G03F7/20 ,  G03F9/00

Abstract: 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.