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Nanospec II Film Thickness 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 Nanospec II is a film thickness measurement system. The Nanospec II is made by ONTO / Nanometrics. The Nanospec II supports 8-inch wafers.[1]

Nanospec II Film Thickness Measurement — Inventory photo
Fig. 01Nanospec II Film Thickness MeasurementInventory photo[1]

What it is

The Onto Innovation Nanospec II is a film thickness measurement system.[1]

How it works

General reference — not yet source-verified

Systems in this class typically operate on the principle of optical interferometry or reflectometry. A light source is directed at the wafer surface, and the reflected spectrum is recorded. The system models the theoretical reflectance of a layered structure and fits it to the measured data to derive film thickness and optical constants.

Where it fits in the process flow

General reference — not yet source-verified

In the semiconductor manufacturing process flow, film thickness measurement tools are used in the metrology and quality assurance stage after thin-film deposition steps. Processes such as chemical vapor deposition, atomic layer deposition, sputtering, or spin coating are typical upstream steps. The data from thickness measurements can be used for statistical process control or to determine whether a wafer can proceed to the next stage of fabrication.

Applications

General reference — not yet source-verified

The system can also be applied in failure analysis and reverse engineering by characterizing unknown layer stacks. In research and development, it supports the characterization of new materials and deposition processes.

What do the numbers mean?

Wafer handling1

Wafer size
8 inch[1]
Accurate?

Configuration & options3

Make / OEM
ONTO / Nanometrics[1]
Accurate?
Model
Nanospec II[1]
Accurate?
Equipment type
Film thickness measurement system[1]
Accurate?
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Where are the manuals?

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Not publicly documented

Field notes

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Not publicly documented

The following facts about the Nanospec II Film Thickness 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 Nanospec II Film Thickness 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 Nanospec II Film Thickness 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 Nanospec II Film Thickness 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 Nanospec II Film Thickness Measurement are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the Nanospec II Film Thickness Measurement is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (1)Every fact above is drawn from these public sources
  1. [1]Inventory photo
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Last updated Sep 30, 2026.

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