METHOD AND SYSTEM FOR IMAGING OF A PHOTOMASK THROUGH A PELLICLE

A system for imaging a sample through a protective pellicle is disclosed. The system includes an electron beam source configured to generate an electron beam and a sample stage configured to secure a sample and a pellicle, wherein the pellicle is disposed above the sample. The system also includes a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DELGADO, Gildardo, ROSE, Garry, SCHULTZ, William G
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A system for imaging a sample through a protective pellicle is disclosed. The system includes an electron beam source configured to generate an electron beam and a sample stage configured to secure a sample and a pellicle, wherein the pellicle is disposed above the sample. The system also includes an electron-optical column including a set of electron-optical elements to direct at least a portion of the electron beam through the pellicle and onto a portion of the sample. In addition, the system includes a detector assembly positioned above the pellicle and configured to detect electrons emanating from the surface of the sample.