Tokyo Electron
Unity II E 855 PP DP Dry
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 Tokyo Electron Unity II E 855 PP DP Dry is a dry etcher. The Tokyo Electron Unity II E 855 PP DP Dry is configured for 8-inch wafers. The model designation is Unity II E 855 PP DP.[1][2]
What it is
How it works
General reference — not yet source-verifiedA dry etcher removes material from a wafer by using a plasma-based chemical process rather than a wet chemical bath.
Dry etchers are used to transfer patterned features into films on a wafer with directional control over material removal.
Where it fits in the process flow
General reference — not yet source-verifiedA dry etcher sits in the pattern-transfer portion of semiconductor fabrication, after masking and before later device completion steps.
Dry etching is commonly paired with lithography because the patterned resist or mask defines where material is removed.
Applications
General reference — not yet source-verifiedA dry etcher is used for patterning thin films and etched device features in semiconductor manufacturing.
A dry etcher is used when controlled removal of selected wafer regions is needed for integrated-circuit fabrication.
What do the numbers mean?
Wafer handling1
Configuration & options6
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
Not publicly documented
The following facts about the Unity II E 855 PP 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 E 855 PP 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 E 855 PP 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 E 855 PP 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 E 855 PP 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 E 855 PP DP Dry 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 (2)Every fact above is drawn from these public sources
- [1]inventory listing
- [2]waferpedia.com — waferpedia.comwaferpedia.com
Last updated Oct 13, 2026.
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