Lam Research
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The following facts about the Rainbow 4420 SN3675 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 4420 SN3675 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 4420 SN3675 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 4420 SN3675 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 4420 SN3675 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the Rainbow 4420 SN3675 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
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Last updated Oct 11, 2026.
The Lam Research Rainbow 4400B is a plasma etch system for 8-inch wafers.
The Lam Rainbow 4400B SN2333 is a Plasma Etch system for 8-inch wafers manufactured by Lam Research.
The Lam Rainbow 4400B SN2622-Parts Machine is a plasma etch tool from Lam Research, configured as a parts machine and accepting 8-inch wafers.
The Lam Rainbow 4420-Crated is a plasma etch system from Lam Research configured for 8-inch wafers.