KLA
Alpha Step IQ Surface
The KLA Alpha Step IQ is a surface profilometer. The KLA Alpha Step IQ runs Windows XP and has firmware version 1.34.[1][2][3]
What it is
The KLA Alpha Step IQ is a surface profilometer.[1][2][3]
Where it fits in the process flow
General reference — not yet source-verifiedIn semiconductor manufacturing, surface profilometers are used for critical dimension and topography measurements after processes such as deposition, etching, and chemical-mechanical planarization (CMP). The Alpha Step IQ is typically employed in quality control and process monitoring to verify step heights, film thickness, and surface roughness.
Applications
General reference — not yet source-verifiedBeyond semiconductor fabrication, surface profilometers are used in optics, MEMS, data storage, and other industries requiring precise surface characterization. The Alpha Step IQ can measure a variety of materials including metals, dielectrics, and polymers.
What do the numbers mean?
Control & software2
Configuration & options6
- Windows XP[2]
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.
Frequently asked questions
What is the typical measurement range for stylus profilers?General reference — not yet source-verified
Stylus profilers can measure step heights from sub-nanometer to hundreds of micrometers, and scan lengths from a few millimeters to tens of millimeters, depending on the model and configuration. The vertical range is usually determined by the transducer's dynamic range and the stylus geometry.
How does stylus force affect the measurement?General reference — not yet source-verified
Stylus force is typically adjustable and kept low (often in the micro-Newton range) to avoid scratching soft materials like photoresist or polymers. Higher force may improve tracking on rough surfaces but can damage the sample or deform soft films. Operators select force based on sample hardness and required resolution.
Can stylus profilers measure transparent films?General reference — not yet source-verified
Yes, unlike optical methods that rely on refractive index, stylus profilers directly contact the surface and can measure step heights of transparent films (e.g., silicon dioxide, photoresist) as long as the stylus can physically traverse the step. However, the measurement only gives topographic height, not film thickness directly unless a known step is present.
What maintenance is required for a stylus profiler?General reference — not yet source-verified
Routine maintenance includes cleaning the stylus to remove debris, verifying stylus tip condition (tip radius and wear), and performing calibration with reference standards (e.g., certified step-height specimens). The precision stage and transducer may require periodic alignment and environmental control (temperature, vibration) to maintain accuracy.
Not publicly documented
The following facts about the Alpha Step IQ Surface 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 Alpha Step IQ Surface are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the Alpha Step IQ Surface 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 Alpha Step IQ Surface 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 Alpha Step IQ Surface are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the Alpha Step IQ Surface is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (3)Every fact above is drawn from these public sources
- [1]Inventory photo
- [2]Inventory photo
- [3]Equipment inventory listing
Last updated Oct 1, 2026.
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