Waferpedia

Tokyo Electron

Alpha 85 Z

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 Alpha 85 Z is a thermal/diffusion furnace manufactured by Tokyo Electron. The Alpha 85 Z handles 8-inch wafers. The Alpha 85 Z is configured for POCL3 processing.[1]

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What it is

General reference — not yet source-verified

The Tokyo Electron Alpha 85 Z is a diffusion furnace classified under the Thermal / Diffusion equipment category. Diffusion furnaces are used in semiconductor manufacturing for processes such as thermal oxidation, dopant diffusion, and annealing of silicon wafers.

Where it fits in the process flow

General reference — not yet source-verified

The furnace process is typically preceded by a cleaning step (e.g., RCA clean) and may be followed by a drive-in anneal or oxidation step to activate and diffuse the dopant further.

What do the numbers mean?

Wafer handling1

Wafer size
8 inch[2]
Accurate?

Configuration & options5

POCL3[2]
Accurate?
Manufacturer
Tokyo Electron[1]
Accurate?
Category
Thermal / Diffusion[1]
Accurate?
Configuration / process
POCL3[2]
Accurate?
Product family
Alpha[1]
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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 Alpha 85 Z 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 Alpha 85 Z are on record.

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

  • No publicly documented variants, configuration options, or revision breakpoints of the Alpha 85 Z 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 Alpha 85 Z 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 Alpha 85 Z are on record.

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

  • The process node or technology generation of the Alpha 85 Z 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]waferpedia.com — waferpedia.comwaferpedia.com
  2. [2]inventory listing
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Last updated Oct 4, 2026.

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