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Tokyo Electron

Certas RST Process

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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 Certas RST is a dry etcher process chamber. The Certas RST process chamber handles 300mm wafers.[1]

Tokyo Electron logo
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What it is

The Tokyo Electron Certas RST is a process chamber used in semiconductor manufacturing. The chamber is designed to process 300 mm (12-inch) wafers.[2][1]

How it works

General reference — not yet source-verified

Dry etch chambers use a low-pressure reactive gas plasma to remove material from the wafer surface. The plasma is generated by applying radio-frequency power to an electrode, which ionizes process gases such as fluorine- or chlorine-based compounds.

The chamber encloses the wafer on a temperature-controlled pedestal. Process gases are introduced through a showerhead and the plasma etches exposed areas of the wafer, typically defined by a patterned photoresist mask. Byproducts are exhausted through a vacuum pump.

Where it fits in the process flow

General reference — not yet source-verified

Etching follows the resist coating, exposure, and development steps and precedes resist stripping and cleaning. The chamber can be configured for different etch chemistries and endpoint detection methods.

What do the numbers mean?

Wafer handling1

Wafer Size
300mm[1]
Accurate?

Configuration & options1

Process Type
Dry Etcher[1]
Accurate?
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Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What wafer size does the Tokyo Electron Certas RST support?

The Certas RST process chamber supports 300 mm (12-inch) wafers.[2][1]

Who manufactures the Certas RST?

The Certas RST is manufactured by Tokyo Electron.[2][1]

What type of equipment is the Certas RST?

The Certas RST is a process chamber used in semiconductor manufacturing, specifically a dry etch chamber.[2][1]

Not publicly documented

The following facts about the Certas RST Process 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 Certas RST Process 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 Certas RST Process are on record.

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

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

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

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Sources & citations

Sources (2)Every fact above is drawn from these public sources
  1. [1]fabsurplus.com — fabsurplus.comfabsurplus.com
  2. [2]Equipment inventory listing
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Last updated Sep 29, 2026.

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