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KLA

Altair 8920 Darkfield

Metrology & InspectionKLA Altair 8920 family
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Altair 8920 Darkfield — Inventory photo
Fig. 01Altair 8920 DarkfieldInventory photo[1]

What it is

General reference — not yet source-verified

Darkfield inspection systems inspect wafer surfaces and patterned layers by collecting scattered light from defects while suppressing directly reflected light. Darkfield inspection tools are used in semiconductor manufacturing to find particles, pattern excursions, and other yield-relevant defects.

How it works

General reference — not yet source-verified

Darkfield inspection tools illuminate the wafer and detect scattered light from localized surface or pattern irregularities. Darkfield inspection tools generate defect information that is used for process monitoring, excursion detection, and review planning.

Where it fits in the process flow

General reference — not yet source-verified

Darkfield wafer inspection tools are placed at inspection points between fabrication steps to check process results before more value is added downstream. Darkfield inspection commonly follows deposition, lithography, etch, clean, or planarization steps when fabs need rapid feedback on defectivity.

What do the numbers mean?

Power & electrical3

Voltage
208 VAC[1]
Accurate?
Phase
3 Phase[1]
Accurate?
Power
208 VAC, 3 phase[1]
Accurate?

Wafer handling2

Handler
x3 FOUP with 8" adaptor plates[1]
Accurate?
Wafer Size
8 inch[2]
Accurate?

Configuration & options5

Largest Load
5.6[1]
Accurate?
Vintage
2019[1]
Accurate?
OEM
KLA[2]
Accurate?
Model
Altair 8920[2]
Accurate?
Inspection type
Darkfield Inspection[2]
Accurate?
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What does it need to run?

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

  • Voltage208 VAC[1]
  • Phase3 Phase[1]
  • Power208 VAC, 3 phase[1]

Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What type of equipment is the KLA Altair 8920 Darkfield?

The KLA Altair 8920 Darkfield is a darkfield inspection system.[2][1]

Not publicly documented

The following facts about the Altair 8920 Darkfield 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 Altair 8920 Darkfield are on record.

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

  • No publicly documented variants, configuration options, or revision breakpoints of the Altair 8920 Darkfield 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 Altair 8920 Darkfield 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 Altair 8920 Darkfield are on record.

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

  • The process node or technology generation of the Altair 8920 Darkfield is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (2)Every fact above is drawn from these public sources
  1. [1]Inventory photo
  2. [2]Equipment inventory listing
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Last updated Oct 21, 2026.

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