Tokyo Electron
Formula Diffusion
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.
What it is
The Tokyo Electron Formula is a diffusion furnace model designed for aluminium oxide processing on 300 mm wafers.[2][1]
How it works
General reference — not yet source-verifiedDiffusion furnaces typically consist of a heated quartz tube divided into multiple temperature zones. Process gases are introduced into the tube while wafers, loaded in a quartz boat, are inserted and subjected to controlled temperature ramps and gas flows to achieve uniform thermal treatment across the batch.
Applications
General reference — not yet source-verifiedCommon applications of diffusion furnaces include gate oxide formation, dopant activation and drive-in, and deposition of polysilicon, silicon nitride, and silicon dioxide films.
What do the numbers mean?
Wafer handling1
Configuration & options1
Vintage & configurations
- 2003-06-01Manufacture vintage[1]
Vintage date of 01.06.2003 for the aluminium oxide process variant
Documented models & variants
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| Formula Diffusion Furnace Aluminium Oxide Process | — | 2003 | 300 mm wafer size, aluminium oxide process | fabsurplus.com[1] |
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 Formula Diffusion are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
Fewer than 3 independently cited specifications for the Formula Diffusion are on record; the remainder await public documentation.
Answerable by: an OEM datasheet, a cleanroom equipment inventory, or an engineer who operated or installed it
The control-system platform and OS era of the Formula Diffusion 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 Formula Diffusion are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the Formula Diffusion is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the Formula Diffusion are on record.
Answerable by: an OEM parts catalog or a service engineer
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (2)Every fact above is drawn from these public sources
- [1]fabsurplus.com — fabsurplus.comfabsurplus.com
- [2]Equipment inventory listing
Last updated Sep 27, 2026.
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