METHOD FOR REDUCING CHARGE IN CRITICAL DIMENSION-SCANNING ELECTRON MICROSCOPE METROLOGY

Methods and compositions are provided for reducing or eliminating charge buildup during scanning electron microscopy (SEM) metrology of a critical dimension (CD) in a structure produced by lithography. An under layer is utilized that comprises silicon in the construction of the structure. When the l...

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Hauptverfasser: MONTGOMERY MELVIN WARREN, MONTGOMERY CECILIA ANNETTE, BUNDAY BENJAMIN D
Format: Patent
Sprache:eng
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Zusammenfassung:Methods and compositions are provided for reducing or eliminating charge buildup during scanning electron microscopy (SEM) metrology of a critical dimension (CD) in a structure produced by lithography. An under layer is utilized that comprises silicon in the construction of the structure. When the lithography structure comprising the silicon-comprising under layer is scanned for CDs using SEM, the under layer reduces or eliminates charge buildup during SEM metrological observations.