Ulvac
NE 550 EX 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 Ulvac NE 550 EX is a dry etcher that handles 4 inch wafers.[1]
What it is
General reference — not yet source-verifiedDry etching systems remove material from semiconductor wafer surfaces using chemically reactive gases in a plasma state. The process is anisotropic and capable of high-fidelity pattern transfer.
How it works
General reference — not yet source-verifiedIn dry etching, a vacuum chamber is filled with a process gas that is ionized into a plasma by an electromagnetic field. Energetic ions are directed toward the wafer surface, where they react with or physically sputter the material to be removed.
Where it fits in the process flow
General reference — not yet source-verifiedDry etching typically follows photolithography in the semiconductor fabrication sequence. The patterned photoresist mask defines areas to be etched, and the etching step transfers the pattern into the underlying layer.
Applications
General reference — not yet source-verifiedDry etching is used for patterning dielectrics, silicon, and metals in semiconductor device fabrication. Common applications include trench etching, contact hole formation, and gate definition.
What do the numbers mean?
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 type of equipment is the Ulvac NE 550 EX?
The Ulvac NE 550 EX is a dry etching system.[1]
Not publicly documented
The following facts about the NE 550 EX 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.
Fewer than 3 independently cited specifications for the NE 550 EX Dry 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
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the NE 550 EX 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 NE 550 EX 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 NE 550 EX 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 NE 550 EX Dry are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (1)Every fact above is drawn from these public sources
- [1]Equipment inventory listing
Last updated Sep 27, 2026.
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