Focused ion beam apparatus

The present invention achieves the quick and precise neutralization operation for wide area charge up and limited area charge up, both existing in a sample in a mixed manner at the same time, by having charge neutralizers separately provided for wide area charge up and limited area charge up respect...

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Bibliographische Detailangaben
1. Verfasser:	AITA KAZUO
Format:	Patent
Sprache:	eng
Schlagworte:	APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBEMICROSCOPY [SPM] BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS SCANNING-PROBE TECHNIQUES OR APPARATUS SEMICONDUCTOR DEVICES TESTING
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Beschreibung
Zusammenfassung:	The present invention achieves the quick and precise neutralization operation for wide area charge up and limited area charge up, both existing in a sample in a mixed manner at the same time, by having charge neutralizers separately provided for wide area charge up and limited area charge up respectively, or by having a charge neutralizer with a scanning function, so that a beam can be scanned or stopped at the perceived area by a deflector, or having a charge neutralizer with an iris having a central opening and openings in the periphery of the central opening within the optical system, so that a quick and precise neutralization operation can be achieved with respect to wide area charge up and limited area charge up both existing in a sample in a mixed manner at the same time.