Onto Innovation
Caliper Mosaic Overlay Measurement
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.
The Caliper Mosaic is an overlay measurement system from Onto Innovation (formerly Nanometrics).[1][2][3][4][5]
What it is
How it works
General reference — not yet source-verifiedOverlay metrology tools operate by optically imaging dedicated overlay targets. Overlay measurement systems measure the relative displacement between a patterned layer and the reference layer beneath it. Overlay measurement systems typically employ imaging-based optical detection of overlay target geometries such as box-in-box or frame-in-frame structures. The tools compute overlay error as vector components in the plane of the wafer.
Where it fits in the process flow
General reference — not yet source-verifiedOverlay measurement is performed in the photolithography process flow. The Caliper Mosaic, as an overlay system, measures wafers after lithography exposure and development to quantify alignment error. Overlay results feed alignment-correction data back to the lithography exposure tool and support statistical process control of the patterning sequence.
Applications
General reference — not yet source-verifiedOverlay measurement is used in integrated-circuit manufacturing wherever successive photo-patterned layers must be aligned to one another. Overlay measurement supports process control for both front-end-of-line and back-end-of-line device layers. Overlay measurement is applied across product lines that require multiple registered lithographic patterning steps.
What do the numbers mean?
Performance1
Configuration & options4
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
Not publicly documented
The following facts about the Caliper Mosaic Overlay Measurement 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 Caliper Mosaic Overlay Measurement are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the Caliper Mosaic Overlay Measurement 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 Caliper Mosaic Overlay Measurement 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 Caliper Mosaic Overlay Measurement are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the Caliper Mosaic Overlay Measurement 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 (6)Every fact above is drawn from these public sources
- [1]Equipment inventory listing
- [2]Equipment inventory listing
- [3]Equipment inventory listing
- [4]Equipment inventory listing
- [5]Equipment inventory listing
- [6]Equipment inventory listing
Last updated Oct 11, 2026.
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