MINIATURE ELECTRON OPTICAL COLUMN WITH A LARGE FIELD OF VIEW

A miniature electron optical column apparatus is disclosed. The apparatus may include a set of electron-optical elements configured to direct a primary electron beam to a sample. The set of electron-optical elements may include an objective lens. The apparatus may also include a deflection sub-syste...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Muray, Lawrence P, Brodie, Alan D, Gerling, John
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY
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Beschreibung
Zusammenfassung:	A miniature electron optical column apparatus is disclosed. The apparatus may include a set of electron-optical elements configured to direct a primary electron beam to a sample. The set of electron-optical elements may include an objective lens. The apparatus may also include a deflection sub-system. The deflection sub-system may include one or more pre-lens deflectors positioned between an electron beam source and the objective lens. The deflection sub-system may also include a post-lens deflector positioned between the objective lens and the sample. The deflection sub-system may also include a post-lens miniature optical element positioned between the objective lens and the sample.