Hitachi
The Hitachi 4800 is a scanning electron microscope. The Hitachi 4800 uses an in-lens SE detector and an Everhart-Thornley SE detector. The Hitachi 4800 uses a magnetic semi-immersion TFE source.[1]
Plate 01Hitachi S-4800 Demonstration
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The SEM forms images from emitted electrons, especially secondary electrons, collected from the sample after the primary beam interacts with the surface.[1]
A modern SEM includes an electron source, focusing and deflection optics, a specimen stage, a detection system, and an image acquisition and control system.[1]
The secondary-electron detector is strongly dependent on sample orientation and topography and is used for surface detail imaging.[1]
The backscattered-electron signal increases with atomic number, so backscattered-electron imaging is used for compositional or Z contrast.[1]
The objective aperture affects probe current, convergence angle, resolution, and depth of field.[1]
The following facts about the 4800 are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the 4800 are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the 4800 are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the 4800 are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the 4800 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 4800 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
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Last updated Oct 9, 2026.
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