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KLA

AIT XUV

Metrology & InspectionKLA AIT XUV family
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The KLA AIT XUV is an inspection machine. The KLA AIT XUV uses a UV laser head at 364 nm. The KLA AIT XUV includes an APS4 controller.[1][2][3]

AIT XUV — Inventory photo
Fig. 01AIT XUVInventory photo[1]

What it is

The KLA AIT XUV is a semiconductor inspection machine in KLA's AIT XUV model line.[1][2][3]

How it works

General reference — not yet source-verified

An inspection machine in this class uses optical methods to examine wafer or pattern surfaces for defects, process variation, or other printable features that affect manufacturing control.

A metrology and inspection tool in this class commonly combines illumination, imaging, and control electronics to measure or classify surface features during semiconductor process control.

Where it fits in the process flow

General reference — not yet source-verified

A metrology and inspection tool fits into the manufacturing flow after patterning steps when critical features must be checked before later process steps proceed.

An inspection platform in this class supports process control by identifying defects or verifying feature behavior before yield-impacting issues propagate downstream.

Applications

The KLA AIT XUV is relevant to semiconductor inspection and metrology work.[1][2][3]

Why won't it start?

Documented failure modes, common issues, and field considerations.

  • Broken optical light bulb
  • Broken laser channel 2

What do the numbers mean?

Optics & imaging6

optical light bulb[1]
Accurate?
laser channel 2[1]
Accurate?
UV LASER HEAD, AIT, 364 NM[3]
Accurate?
Laser wavelength
364 nm[3]
Accurate?
Laser head
UV laser head, AIT, 364 nm[3]
Accurate?
Known broken items
Optical light bulb; laser channel 2[1]
Accurate?

Control & software2

FRU, PCB, ASSY, APS4 CONTROLLER[2]
Accurate?
Controller
APS4[2]
Accurate?

Configuration & options4

Broken items:[1]
Accurate?
Equipment type
Inspection machine[1]
Accurate?
Make
KLA[1]
Accurate?
Model
AIT XUV[1]
Accurate?

Vintage & configurations

  1. 2004Vintage[1]

    One source identifies the KLA AIT XUV as 2004 vintage.

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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

No research found yet — worked with this tool? Share what you know.

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Frequently asked questions

How does the inspection speed compare between different pixel sizes?General reference — not yet source-verified

Larger pixel sizes allow faster scanning but reduce sensitivity to small defects. Smaller pixel sizes improve sensitivity but reduce throughput. The operator selects the appropriate pixel size based on the defect size of interest and the throughput requirements for the specific process layer.

How do such systems handle complex or dense patterns without being overwhelmed by noise?General reference — not yet source-verified

Advanced algorithms, including machine learning and adaptive thresholding, filter out nuisance signals from pattern irregularities and process variations. The tools also use multiple inspection recipes with tuned capture rates and sensitivity settings. Some systems employ an initial scan to characterize the background pattern and then apply smart masking to reduce false counts.

Not publicly documented

The following facts about the AIT XUV 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 variants, configuration options, or revision breakpoints of the AIT XUV 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 AIT XUV are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • The process node or technology generation of the AIT XUV is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the AIT XUV are on record.

    Answerable by: an OEM parts catalog or a service engineer

  • No publicly hosted manuals, SOPs, or datasheets for the AIT XUV are on record.

    Answerable by: university cleanroom staff or an OEM application specialist

Sources & citations

Sources (4)Every fact above is drawn from these public sources
  1. [1]Equipment inventory listing
  2. [2]inventory listing
  3. [3]inventory listing
  4. [4]Certified Used Equipment | Archer 100 | KLA-Tencor — kla-tencor.com (May 16, 2017)web.archive.org
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Last updated Oct 4, 2026.

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