Hitachi
S 8840 CD-SEM
The Hitachi S 8840 CD-SEM is a Critical Dimension Scanning Electron Microscope. The Hitachi S 8840 CD-SEM is specified for 8-inch wafer sizes.[1][2]
What it is
The Hitachi S 8840 is a CD-SEM used for critical dimension measurement in semiconductor metrology and inspection.[1][2]
How it works
General reference — not yet source-verifiedA CD-SEM uses a focused electron beam to scan a feature and form a high-resolution image for dimensional measurement.
A CD-SEM is used to inspect patterned structures and extract critical dimensions from semiconductor features.
Where it fits in the process flow
General reference — not yet source-verifiedA CD-SEM sits in the metrology and inspection flow after patterning steps that create features on the wafer.
A CD-SEM supports process control by checking feature dimensions before later fabrication steps continue.
Applications
What do the numbers mean?
Power & electrical3
- Single Phase[2]
Vacuum & pumping1
- Turbo Controller[2]
Wafer handling1
Performance1
- Lamp for alignment 1 Unit[2]
Configuration & options8
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
No research found yet — worked with this tool? Share what you know.
Frequently asked questions
What type of equipment is the Hitachi S 8840?
The Hitachi S 8840 is a critical dimension scanning electron microscope.[1][2]
Not publicly documented
The following facts about the S 8840 CD-SEM 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 8840 CD-SEM 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 8840 CD-SEM 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 8840 CD-SEM 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 8840 CD-SEM are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the S 8840 CD-SEM is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (4)Every fact above is drawn from these public sources
- [1]Equipment inventory listing
- [2]Inventory photo
- [3]Inventory photo
- [4]Inventory photo
Last updated Oct 12, 2026.
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