KLA
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]

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.
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.
Documented failure modes, common issues, and field considerations.
One source identifies the KLA AIT XUV as 2004 vintage.
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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.
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.
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
Last updated Oct 4, 2026.
The KLA .204 PSL Wafer is an 8-inch NIST-traceable reference wafer compatible with Surfscan 6xy0 and Sp1 particle counters.
KLA .496 PSL Wafer is an 8-inch NIST traceable wafer stated to be capable on Surfscan 6xy0 and SP1.
The KLA .498 PSL Wafer is a NIST traceable reference wafer.