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OAI

800

LithographyOAI 800 family
Research Quality: 50% complete

The OAI 800 is a backside aligner used for photolithography.[1]

800 — nanofab.utah.edu
Fig. 01800nanofab.utah.edu[1]

What it is

The OAI 800 is a mask aligner designed for backside alignment.[1]

How it works

General reference — not yet source-verified

In a backside aligner, the mask is aligned to features on the back side of a substrate, often using transmitted-light or infrared microscopy to see through the substrate. The substrate is typically held in a chuck and brought into contact or proximity with the mask, then exposed to ultraviolet light through the mask. The OAI 800, as a backside aligner, follows this general principle.

What can it run?

Process applications and technology nodes documented for this tool.

  • Lithography alignment

What do the numbers mean?

Configuration & options5

Tool type
Aligner[2]
Accurate?
Equipment section
Lithography[2]
Accurate?
Tool name
OAI 800[1]
Accurate?
Serial number
1398[1]
Accurate?
Align type
Backside[1]
Accurate?
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What replaced it?

  • siblingOAI 200— Listed alongside OAI 800 in the aligners section.source[2]

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

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Frequently asked questions

What type of equipment is the OAI 800?

It is a backside aligner.[1]

Is the OAI 800 included in the equipment training and service request list?

Yes. It appears among the selectable tools on the equipment training or service request form.[3]

Not publicly documented

The following facts about the 800 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 800 are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • No publicly documented variants, configuration options, or revision breakpoints of the 800 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 800 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 800 are on record.

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

  • The process node or technology generation of the 800 is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (3)Every fact above is drawn from these public sources
  1. [1]nanofab.utah.edu — nanofab.utah.edunanofab.utah.edu
  2. [2]nanofab.utah.edu — nanofab.utah.edunanofab.utah.edu
  3. [3]Request Equipment Training or Service | Utah Nanofab — nanofab.utah.edunanofab.utah.edu
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Last updated Oct 3, 2026.

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