Zygo
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The Zygo AutoKMS 100 is a scanning electron microscope (SEM) categorized as a metrology and inspection tool. The AutoKMS 100 is used as a reticle CD-SEM for critical-dimension measurement and inspection of patterned features on photomasks. The AutoKMS 100 supports 8-inch wafers.[1]

A critical-dimension scanning electron microscope is a metrology and inspection instrument used to examine very small patterned features on photomasks or reticles and to measure their dimensions. A tool of this class uses an electron beam rather than visible light for small-scale feature evaluation.
A critical-dimension scanning electron microscope forms an electron beam, scans it across a patterned surface, and detects the emitted or backscattered signal to build an image. The resulting image contrast is used to inspect feature edges and measure pattern dimensions.[1]
The tool is used for reticle inspection and critical-dimension measurement in semiconductor lithography. The tool is relevant to patterned mask verification, edge placement evaluation, and inspection of small printed features on reticles.[1]
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The following facts about the AutoKMS 100 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 AutoKMS 100 are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the AutoKMS 100 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 AutoKMS 100 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 AutoKMS 100 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the AutoKMS 100 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
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Last updated Oct 11, 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.