Waferpedia

Plasma-Therm

720/740

Etch200mmPlasma-Therm 720/740 family
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Plasma-Therm720/740
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Wafer size

200mm

Gas delivery

chlorine and fluorine based chemistry[1]

What is it?

The Plasma Therm 720/740 is described as a dual chamber RIE loadlocked system. The 740 left chamber is designated as an Au exposure system and can etch metals and dielectrics with either Au exposure or termination, while the 720 right chamber is designated for chlorine- and fluorine-based etching of 2D materials and perovskites. Both chambers can accommodate up to 200mm diameter wafers.

What can it run?

Process applications and technology nodes documented for this tool.

  • etching metals and dielectrics
  • etching 2D materials such as MoS2, WSe2, NbSe2, AsSe2, and GaSe
  • etching perovskites such as SrRuOx, SrLaAlOx, and BaSrOx

What do the numbers mean?

Wafer handling2

system type
dual chamber RIE loadlocked system[1]
Accurate?
wafer capacity
up to 200mm diameter wafers[1]
Accurate?

Gas & chemistry1

chemistry
chlorine and fluorine based chemistry[1]
Accurate?

Optics & imaging1

left chamber designation
740 (left chamber), designated Au exposure system[1]
Accurate?

Configuration & options1

right chamber designation
720 (right chamber), designated for chlorine and fluorine based etching of 2D materials and perovskites[1]
Accurate?
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What replaced it?

Alternatives

Tools documented as functional equivalents — same process step and wafer size, from a different manufacturer. Each equivalence cites its source.

What does it need to run?

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

  • chemistrychlorine and fluorine based chemistry[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

No research found yet — worked with this tool? Share what you know.

Frequently asked questions

What type of equipment is the PlasmaTherm Versaline Deep Silicon Etcher?

It is a dry etching system configured for deep silicon etching.[1]

What process is it configured to use?

It is configured for fast switching Bosch processes.[1]

What materials does it etch?

It is used for etching silicon wafers.[1]

What structures can it create?

It can create high aspect ratio trenches and channels in silicon wafers.[1]

Not publicly documented

The following facts about the 720/740 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 720/740 are on record.

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

  • No publicly documented variants, configuration options, or revision breakpoints of the 720/740 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 720/740 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 720/740 are on record.

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

  • The process node or technology generation of the 720/740 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. [1]cnf.cornell.educnf.cornell.educnf.cornell.edu
  2. [2]nano.upenn.edunano.upenn.edu
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Last updated Jul 29, 2026.

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