KLA

The Surfscan 7700 is a model of particle defect system manufactured by KLA. The system carries part number 313270. The system is configured for 208 V, 20 A, 2-phase, 60 Hz power. The system dates from 1996.[1]
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It detects small surface anomalies such as particles, residue, and other contamination-related defects that may interfere with semiconductor processing.
It is used in the inspection and metrology portion of the process flow to verify surface quality and identify contamination before later process steps.
It scans a surface with controlled optical illumination and looks for changes in the returned signal caused by defects or foreign material.
Particle inspection helps identify contamination sources and supports yield control by catching surface defects that can propagate into later process problems.
It typically produces defect locations, defect maps, and inspection records that can be reviewed by engineers or linked to process analysis.
The following facts about the Surfscan 7700 Particle Defect 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 Surfscan 7700 Particle Defect are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the Surfscan 7700 Particle Defect 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 Surfscan 7700 Particle Defect 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 Surfscan 7700 Particle Defect are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the Surfscan 7700 Particle Defect is not on record.
Answerable by: an OEM datasheet or a fab qualification report
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Last updated Sep 1, 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 0035235-003 MMD Head is a TSTD PCB ASSY, MMD MEAS HEAD compatible with the KLA AIT-XP.