Waferpedia

Tokyo Electron

Unity II E 655 PP

EtchTokyo Electron Unity II E 655 PP family
Research Quality: 30% 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.

Unity II E 655 PP — Inventory photo
Fig. 01Unity II E 655 PPInventory photo[1]

What it is

The Tokyo Electron Unity II E 655 PP is an etch tool used in semiconductor manufacturing.[1][2]

How it works

General reference — not yet source-verified

Plasma etching uses a gas mixture that is ionized into a plasma by an RF field. Reactive species in the plasma chemically react with the wafer surface to form volatile byproducts that are pumped away. The process can be anisotropic, producing vertical sidewalls.

What do the numbers mean?

Wafer handling1

Wafer sizes
6 inch[1]
Accurate?

Configuration & options3

OEM
Tokyo Electron[1]
Accurate?
Model
Unity II E 655 PP[1]
Accurate?
Category
Etch[2]
Accurate?
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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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Not publicly documented

The following facts about the Unity II E 655 PP 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 E 655 PP 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 E 655 PP 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 E 655 PP 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 E 655 PP are on record.

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

  • The process node or technology generation of the Unity II E 655 PP is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (2)Every fact above is drawn from these public sources
  1. [1]Inventory photo
  2. [2]waferpedia.com — waferpedia.comwaferpedia.com
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Last updated Sep 27, 2026.

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