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Tokyo Electron

Unity II 85 DP Dry

EtchTokyo Electron Unity II 85 DP Dry family
Research Quality: 40% complete

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 Tel Unity II 85 DP is a dry etcher for 8-inch wafers.[1]

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What it is

The Unity II 85 DP is a dry etch system. The Unity II 85 DP is made by Tel. The Unity II 85 DP is configured for wafers with an 8-inch diameter.[1]

How it works

General reference — not yet source-verified

Dry etchers process wafers inside a vacuum chamber. A process gas is introduced into the chamber and excited into a plasma by radio-frequency power. The plasma contains ions and reactive radicals that attack exposed film material on the wafer. Etching can occur through chemical reactions, physical ion bombardment, or a combination of both. Process parameters such as gas composition, pressure, and power determine the etch rate and anisotropy.

Where it fits in the process flow

General reference — not yet source-verified

Etch is used after photolithography to transfer a pattern into the underlying film. The patterned photoresist covers areas that should remain; the dry etcher removes material in the open areas. Following the etch step, the resist is stripped and the wafer is cleaned before further processing.

Applications

General reference — not yet source-verified

Dry etch tools pattern dielectric films, semiconductor materials, and conductive layers. Common applications include gate structuring, contact and via formation, and interconnect patterning. Dry etching provides anisotropic profiles for high-fidelity pattern transfer in integrated-circuit fabrication.

What do the numbers mean?

Wafer handling1

Wafer Size
8 inch[1]
Accurate?

Configuration & options2

Make
Tel[1]
Accurate?
Model
Unity II 85 DP[1]
Accurate?
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Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What is the Unity II 85 DP?

The Unity II 85 DP is a dry etcher.[1]

What is the model designation of this dry etcher?

The model designation is Unity II 85 DP.[1]

Not publicly documented

The following facts about the Unity II 85 DP Dry 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 Unity II 85 DP Dry are on record.

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

  • No publicly documented variants, configuration options, or revision breakpoints of the Unity II 85 DP Dry 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 Unity II 85 DP Dry 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 Unity II 85 DP Dry are on record.

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

  • The process node or technology generation of the Unity II 85 DP Dry 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]Equipment inventory listing
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Last updated Oct 1, 2026.

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