Nikon
Optiphot
Provisional entry — research in progress
This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.
What it is
General reference — not yet source-verifiedThe Nikon Optiphot is a compound optical microscope used for inspection and metrology applications in semiconductor fabrication and materials science laboratories.
The Optiphot is a reflected-light (incident-light) microscope designed for examining opaque specimens such as semiconductor wafers and photomasks.
How it works
Where it fits in the process flow
General reference — not yet source-verifiedOptical inspection microscopes such as the Nikon Optiphot are used after lithography and processing steps to check for defects, measure critical dimensions, and verify pattern fidelity on wafers.
In a semiconductor fabrication facility, the Optiphot serves as a benchtop metrology tool used by process engineers and operators for wafer-level inspection.
Applications
General reference — not yet source-verifiedApplications include bright-field and dark-field observation of semiconductor wafers, photomasks, and other substrates for defect detection and feature verification.
The microscope is also used in university and research cleanroom settings for general optical inspection tasks.
Why won't it start?
Documented failure modes, common issues, and field considerations.
- 100x objective damaged
What do the numbers mean?
Vintage & configurations
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
- Light Source12V 100W incandescent (Osram); LED retrofit available[3]
Where are the manuals?
Publicly hosted documents referencing this tool, linked at their original location. Hosted by the linked institutions — availability may change.
- LED Microscope Illumination ProjectDocumentberkeley.edu
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 illumination source does the Nikon Optiphot 150 use?
The Nikon Optiphot 150 originally uses an incandescent lamp, which can be replaced with a Cree XML2 LED for improved performance.[3]
What objectives are commonly used on the Nikon Optiphot?
The Nikon Optiphot is commonly used with 10x and 40x objectives; a 100x objective may be present but can be damaged.[2]
What imaging modes does the Nikon Optiphot support?
The Nikon Optiphot supports brightfield, darkfield, and differential interference contrast imaging modes.[4]
Not publicly documented
The following facts about the Optiphot 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 Optiphot are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the Optiphot are not on record.
Answerable by: an engineer who operated it or OEM installation records
The process node or technology generation of the Optiphot is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the Optiphot are on record.
Answerable by: an OEM parts catalog or a service engineer
Sources & citations
Sources (4)Every fact above is drawn from these public sources
- [1]Inventory photo
- [2]nanocenter.umd.edu — nanocenter.umd.edunanocenter.umd.edu
- [3]nanolab.berkeley.edu — nanolab.berkeley.edunanolab.berkeley.edu
- [4]epfl.ch — epfl.chepfl.ch
Last updated Oct 3, 2026.
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