Lam Research
Rainbow 4520 XL Dielectric
Provisional entry — research in progress
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 Lam Rainbow 4520 XL Dielectric is a dielectric etch tool for 6-inch wafers. The Rainbow 4520 XL Dielectric supports the gases C4F8, SF6, CHF3, CH3F, Ar, O2, N2, and CF4.[1][2]
What it is
How it works
Where it fits in the process flow
General reference — not yet source-verifiedThe Rainbow 4520 XL Dielectric is used in the etch step of semiconductor fabrication, which typically follows photolithography and precedes resist stripping and wet cleaning.
Applications
General reference — not yet source-verifiedThe machine is employed for etching dielectric layers in the production of integrated circuits, including contact holes, vias, and trench isolation structures.
What do the numbers mean?
Wafer handling1
Gas & chemistry1
Configuration & options2
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
- GasesC4F8, SF6, CHF3, CH3F, Ar, O2, N2, CF4[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 machine is the Rainbow 4520 XL Dielectric?
The Rainbow 4520 XL Dielectric is a dielectric etch tool for semiconductor manufacturing.[1][2]
What wafer size does the Rainbow 4520 XL Dielectric support?
The Rainbow 4520 XL Dielectric supports 6-inch wafers.[1][2]
Which gases does the Rainbow 4520 XL Dielectric support?
The Rainbow 4520 XL Dielectric supports C4F8, SF6, CHF3, CH3F, Ar, O2, N2, and CF4.[1][2]
What process step does the Rainbow 4520 XL Dielectric belong to?
The Rainbow 4520 XL Dielectric is used in the etch step of semiconductor fabrication.[2]
Not publicly documented
The following facts about the Rainbow 4520 XL Dielectric 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 4520 XL Dielectric 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 4520 XL Dielectric 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 4520 XL Dielectric 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 4520 XL Dielectric are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the Rainbow 4520 XL Dielectric 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]Inventory photo
- [2]waferpedia.com — waferpedia.comwaferpedia.com
Last updated Oct 10, 2026.
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