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STS

Multiplex

DepositionSTS Multiplex family
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The STS Multiplex PECVD is a plasma-enhanced chemical vapor deposition system for depositing thin films such as oxide, nitride, and silicon. The STS Multiplex PECVD operates in single or dual-wafer batch mode with no cassette operation. The STS Multiplex PECVD processes wafers up to 6 inches and supports silicon nitride (Si3N4) deposition using gases including oxygen, carbon tetrafluoride (CF4), silane, nitrous oxide, and ammonia.[1][2]

Multiplex — Inventory photo
Fig. 01MultiplexInventory photo[1]

What it is

The STS Multiplex is a plasma-enhanced chemical vapor deposition system.[1]

How it works

General reference — not yet source-verified

Plasma-enhanced chemical vapor deposition uses a plasma to activate precursor gases and form a solid film on a wafer surface.

The STS Multiplex uses process gases and a wafer stage to build deposited layers from reactive gas-phase chemistry.

Where it fits in the process flow

General reference — not yet source-verified

The STS Multiplex belongs in the thin-film deposition portion of a semiconductor process flow.

The STS Multiplex is used before later pattern transfer or etch steps when a deposited dielectric or related film is needed on the wafer.

Applications

The STS Multiplex deposits silicon dioxide and silicon nitride.[1]

The STS Multiplex uses oxygen, carbon tetrafluoride, silane, nitrous oxide, and ammonia as process gases.[1]

The STS Multiplex PECVD deposition system is used for thin films such as oxide, nitride, silicon carbide, amorphous silicon, and phosphorus-doped amorphous silicon.[2]

What do the numbers mean?

Wafer handling2

Wafer size
6 inch[1]
Accurate?
Batch mode
Single or dual-wafer batch mode, no cassette operation[2]
Accurate?

Gas & chemistry4

Processing gases
Oxygen, Carbon Tetrafluoride (CF4), Silane, Nitrous Oxide, Ammonia[1]
Accurate?
Deposition type
Plasma-enhanced chemical vapor deposition (PECVD)[1]
Accurate?
Process gases
Oxygen, carbon tetrafluoride (CF4), silane, nitrous oxide, ammonia[1]
Accurate?
Tool type
PECVD (Plasma-Enhanced Chemical Vapor Deposition)[1]
Accurate?

Configuration & options13

Decomposition Capability:[1]
Accurate?
Silicon Dioxide (SiO2); Silicon Nitride (Si3N4)[1]
Accurate?
Processing Gasses:[1]
Accurate?
Oxygen[1]
Accurate?
Carbon Tetrafluoride (CF4)[1]
Accurate?
Silane[1]
Accurate?
Nitrous Oxide[1]
Accurate?
Ammonia[1]
Accurate?
Category
Deposition[1]
Accurate?
Film deposited
Silicon Nitride (Si3N4)[1]
Accurate?
Tool type
PE CVD[2]
Accurate?
Deposited films
Thin films such as oxide, nitride, and silicon[2]
Accurate?
Decomposition capability
Silicon dioxide (SiO2); silicon nitride (Si3N4)[1]
Accurate?
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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • Processing gasesOxygen, Carbon Tetrafluoride (CF4), Silane, Nitrous Oxide, Ammonia[1]
  • Deposition typePlasma-enhanced chemical vapor deposition (PECVD)[1]
  • Process gasesOxygen, carbon tetrafluoride (CF4), silane, nitrous oxide, ammonia[1]
  • Tool typePECVD (Plasma-Enhanced Chemical Vapor Deposition)[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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Frequently asked questions

What films does the STS Multiplex PECVD deposit?

The STS Multiplex PECVD deposits oxide, nitride, silicon carbide, amorphous silicon, and phosphorus-doped amorphous silicon films.[2]

Can the STS Multiplex process pieces as well as wafers?

The STS Multiplex can work on pieces and on wafers up to six inches in size.[2]

Not publicly documented

The following facts about the Multiplex 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 Multiplex are on record.

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

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

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

  • The process node or technology generation of the Multiplex is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (5)Every fact above is drawn from these public sources
  1. [1]Inventory photo
  2. [2]nanolab.ucla.edu — nanolab.ucla.edunanolab.ucla.edu
  3. [3]Etching ‒ Center of MicroNanoTechnology CMi ‐ EPFL — epfl.chepfl.ch
  4. [4]STS Multiplex ICP RIE - Claire & John Bertucci Nanotechnology Laboratory - College of Engineering - Carnegie Mellon Univ — nanofab.ece.cmu.edunanofab.ece.cmu.edu
  5. [5]Equipment List — nanofab.utah.edunanofab.utah.edu
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Last updated Sep 29, 2026.

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