METHODS AND SYSTEMS FOR MEASURING PERIODIC STRUCTURES USING MULTI-ANGLE X-RAY REFLECTANCE SCATTEROMETRY (XRS)

METHODS AND SYSTEMS FOR MEASURING PERIODIC STRUCTURES USING MULTI-ANGLE X-RAY REFLECTANCE SCATTEROMETRY (XRS)

Methods and systems for measuring periodic structures using multi-angle X-ray reflectance scatterometry (XRS) are disclosed. For example, a method of measuring a sample by X-ray reflectance scatterometry involves impinging an incident X-ray beam on a sample having a periodic structure to generate a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Schueler, Bruno W, Fanton, Jeffrey T, Pois, Heath A, Smedt, Rodney, Reed, David A
Format: Patent
Sprache:eng
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:Methods and systems for measuring periodic structures using multi-angle X-ray reflectance scatterometry (XRS) are disclosed. For example, a method of measuring a sample by X-ray reflectance scatterometry involves impinging an incident X-ray beam on a sample having a periodic structure to generate a scattered X-ray beam, the incident X-ray beam simultaneously providing a plurality of incident angles and a plurality of azimuthal angles. The method also involves collecting at least a portion of the scattered X-ray beam.