Hitachi
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The Hitachi S 2150 is a scanning electron microscope (SEM) classified as a metrology and inspection tool for semiconductor manufacturing.[1][2]
A scanning electron microscope generates a finely focused electron beam by thermionic or field emission from an electron gun. The beam is demagnified and scanned across the sample surface in a raster pattern by electromagnetic lenses and scanning coils.
When the primary electron beam strikes the sample, it generates secondary electrons, backscattered electrons, and characteristic X-rays. Detectors collect the secondary or backscattered electrons, and the intensity of the signal at each beam position is used to build an image. The high depth of field and wide range of magnifications make SEMs suitable for inspecting topography and identifying defects on processed wafers.
Upstream of the SEM are the defect detection tools (e.g., bright-field or dark-field optical inspectors); downstream, the defect classification data feeds yield management systems that guide process adjustments. The SEM may also be used off-line for failure analysis of individual die or packaged parts.
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The Hitachi S 2150 is a scanning electron microscope (SEM).[1]
The following facts about the S 2150 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 S 2150 are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the S 2150 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 S 2150 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 S 2150 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the S 2150 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
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Last updated Oct 6, 2026.
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