Tokyo Electron
Alpha 8 SE
What it is
General reference — not yet source-verifiedThis class of equipment is used to heat wafers in a controlled furnace environment so that films can be grown or modified and dopant-related thermal steps can be carried out. In a fab, it belongs to the thermal processing segment rather than patterning, deposition, or etch.
How it works
General reference — not yet source-verifiedA thermal diffusion furnace processes wafers by exposing them to carefully controlled heat in a tube or chamber environment, often with process gases selected for oxidation or polysilicon-related steps. The heat drives chemical reactions at the wafer surface and diffusion-related changes within the material stack.
What can it run?
Process applications and technology nodes documented for this tool.
- High temperature oxide
- Undoped poly
- D-Poly
What do the numbers mean?
Power & electrical5
Wafer handling1
Control & software3
Configuration & options11
What replaced it?
Alternatives
Tools documented as functional equivalents — same process step and wafer size, from a different manufacturer. Each equivalence cites its source.
- Bruce BDF 41 Diffusion— Same function class: Thermal / Diffusion, UnknownCompare in depthsource[1]
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
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
No research found yet — worked with this tool? Share what you know.
Frequently asked questions
What does a thermal diffusion furnace do in semiconductor manufacturing?General reference — not yet source-verified
It exposes wafers to a controlled heat environment so material properties and device structures can be changed through diffusion, oxidation, annealing, or related thermal processes.
Why are machines of this class used in batch processing?General reference — not yet source-verified
They are built to process multiple wafers together under the same thermal profile, which supports uniform treatment and efficient use of the heat cycle.
What controls are important in this equipment class?General reference — not yet source-verified
Temperature stability, gas environment control, timing, and loading consistency are central because they determine how evenly the thermal recipe is applied.
Where is this class used in the fab flow?General reference — not yet source-verified
It is used in front-end semiconductor processing wherever a wafer needs a high-temperature step to change electrical or physical properties before later fabrication stages.
Not publicly documented
The following facts about the Alpha 8 SE 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 8 SE 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 8 SE 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 8 SE 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 8 SE are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the Alpha 8 SE is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (9)Every fact above is drawn from these public sources
- [1]Inventory photo
- [2]Inventory photo
- [3]inventory listing
- [4]inventory listing
- [5]inventory listing
- [6]inventory listing
- [7]inventory listing
- [8]inventory listing
- [9]ALPHA-303i | Tokyo Electron — tel.com (Mar 12, 2008)web.archive.org
Last updated Jul 29, 2026.
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The Bruce BDF 41 is a diffusion furnace configured for 6-inch wafers.