METHOD OF CHARACTERIZING, METHOD OF FORMING A MODEL, METHOD OF SIMULATING, MASK MANUFACTURING METHOD AND DEVICE MANUFACTURING METHOD

A method of characterizing a lithographic mask type uses a mask having thereon test pattern units of linear features at different orientations. The mask is exposed, rotated by angle, exposed again, rotated by a further angle, exposed, etc. The printed features are measured to determine one or more c...

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Bibliographische Detailangaben
Hauptverfasser:	DAVYDOVA Natalia Viktorovna, PSARA Eleni, VAN OOSTEN Anton Bernhard, VAN SETTEN Eelco
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY MATERIALS THEREFOR ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS
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Beschreibung
Zusammenfassung:	A method of characterizing a lithographic mask type uses a mask having thereon test pattern units of linear features at different orientations. The mask is exposed, rotated by angle, exposed again, rotated by a further angle, exposed, etc. The printed features are measured to determine one or more characteristics of the mask. The method can be used to model shadowing effects of a EUV mask with a thick absorber illuminated at an angle.