Method for measuring a focus parameter relating to a structure formed using a lithographic process

Disclosed is a method of measuring a focus parameter relating to formation of a structure using a lithographic process, and associated metrology device. The method comprises obtaining measurement data relating to a cross-polarized measurement of said structure; and determining a value for said focus...

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Bibliographische Detailangaben
Hauptverfasser:	LI, FA-HONG, SOKOLOV, SERGEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR BASIC ELECTRIC ELEMENTS CINEMATOGRAPHY COLORIMETRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY HOLOGRAPHY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES 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 SEMICONDUCTOR DEVICES TESTING
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Beschreibung
Zusammenfassung:	Disclosed is a method of measuring a focus parameter relating to formation of a structure using a lithographic process, and associated metrology device. The method comprises obtaining measurement data relating to a cross-polarized measurement of said structure; and determining a value for said focus parameter based on the measurement data.