Waferpedia

Lam Research

Rainbow 4400B SN2622-Parts

Lam Research logo
Fig. — Manufacturer logo, not a photo of this toolWikimedia Commons (see file page for license)

What it is

The Lam Research Rainbow 4400B is a plasma etch system. Lam Research manufactures the Rainbow 4400B. The system supports 8-inch wafer processing.[1]

How it works

General reference — not yet source-verified

Process parameters such as gas composition, pressure, and RF power are controlled to achieve the desired etch rate and selectivity. Systems of this class often include automated tuning and endpoint detection to ensure repeatable results across wafers.

Where it fits in the process flow

General reference — not yet source-verified

In semiconductor fabrication, plasma etch systems are used after the photoresist pattern has been formed. The etch removes material from areas not protected by the resist. After etching, the remaining resist is stripped. The wafer then proceeds to downstream steps such as cleaning, inspection, and subsequent processing layers.

Applications

General reference — not yet source-verified

Plasma etch systems are employed for etching a variety of materials including silicon, silicon dioxide, silicon nitride, and many metals. Applications span integrated circuit manufacturing, microelectromechanical systems (MEMS) fabrication, and other devices that require precise material removal at the micron and sub‑micron scale.

What do the numbers mean?

Wafer handling1

Wafer Size
8-inch[1]
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Configuration & options9

Original Equipment Manufacturer
Lam Research[1]
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Condition
Parts Machine,. Sell it at AS IS ,Where Is term.[1]
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Quantity
1 set[1]
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Valid Time
Subject to prior sale[1]
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Lead Time
Ready to go[1]
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Category
Plasma Etch[1]
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Warranty
N/A[1]
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Refund
N/A[1]
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Inspection
Against appointment[1]
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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 type of equipment is the Lam Research Rainbow 4400B?

The Rainbow 4400B is a plasma etch system.[1]

What wafer size does the Rainbow 4400B support?

The system supports 8-inch wafers.[1]

Who manufactures the Rainbow 4400B?

Lam Research manufactures the Rainbow 4400B.[1]

Not publicly documented

The following facts about the Rainbow 4400B SN2622-Parts 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 Rainbow 4400B SN2622-Parts are on record.

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

  • No publicly documented variants, configuration options, or revision breakpoints of the Rainbow 4400B SN2622-Parts 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 Rainbow 4400B SN2622-Parts 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 Rainbow 4400B SN2622-Parts are on record.

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

  • The process node or technology generation of the Rainbow 4400B SN2622-Parts is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (1)Every fact above is drawn from these public sources
  1. [1]dealer listingsemistarcorp.com
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Last updated Oct 11, 2026.

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