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KLA

Alpha Step D 500 Wafer Profiler Meter

Metrology & InspectionKLA Alpha Step family
Research Quality: 40% complete

Provisional entry — research in progress

This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.

The KLA Alpha Step D 500 Wafer Profiler Meter is a stylus profiler. The KLA Alpha Step D 500 Wafer Profiler Meter supports 2D step height measurement from a few nanometers up to 1200µm. The KLA Alpha Step D 500 Wafer Profiler Meter is specified for 8 inch wafers.[1][2]

KLAAlpha Step D 500 Wafer Profiler Meter
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What it is

The KLA Alpha Step D 500 Wafer Profiler Meter is a stylus profiler for wafer metrology and inspection.[1][3]

The Alpha-Step D 500 is a benchtop instrument with a manual stage and video-based optics for surface profiling.[1][3]

How it works

The Alpha-Step D 500 supports two-dimensional step height measurement from a few nanometers up to 1200µm.[1][3]

The Alpha-Step D 500 also supports two-dimensional measurements of roughness, bow, and stress.[1][3]

Where it fits in the process flow

The Alpha-Step D 500 is used in both research and production environments.[1]

Applications

The Alpha-Step D 500 is used for step height measurement, roughness measurement, bow measurement, and stress measurement.[1][3]

The Alpha-Step D 500 is specified for 8 inch wafers.[2][3]

Why won't it start?

Documented failure modes, common issues, and field considerations.

  • Missing computer

What do the numbers mean?

Wafer handling1

Wafer size
8 inch[2]
Accurate?

Optics & imaging1

Optics
advanced optics with enhanced video controls[1]
Accurate?

Control & software1

Missing Computer[2]
Accurate?

Dimensions & facilities3

Measurement capability
2D step height, roughness, bow, and stress[1]
Accurate?
Step height range
a few nanometers to 1200µm[1]
Accurate?
Step height measurement range
a few nanometers up to 1200µm[1]
Accurate?

Configuration & options3

Instrument type
stylus profiler[1]2 sources
Accurate?
Stage
manual 140mm stage[1]
Accurate?
Form factor
smallest compact size benchtop stylus profiler[1]
Accurate?
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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

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Frequently asked questions

What is the KLA Alpha Step D 500 Wafer Profiler Meter?

The KLA Alpha Step D 500 Wafer Profiler Meter is a stylus profiler used for wafer metrology and inspection.[2][1][3]

What type of measurement does the Alpha-Step D500 perform?

The Alpha-Step D500 performs 2D step height measurement.[1]

What other surface measurements does the Alpha-Step D500 support?

The Alpha-Step D500 supports 2D measurements of roughness, bow, and stress.[1]

Not publicly documented

The following facts about the Alpha Step D 500 Wafer Profiler Meter 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 D 500 Wafer Profiler Meter 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 D 500 Wafer Profiler Meter 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 D 500 Wafer Profiler Meter are not on record.

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

  • The process node or technology generation of the Alpha Step D 500 Wafer Profiler Meter is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the Alpha Step D 500 Wafer Profiler Meter are on record.

    Answerable by: an OEM parts catalog or a service engineer

Sources & citations

Sources (3)Every fact above is drawn from these public sources
  1. [1]kla.com — kla.comkla.com
  2. [2]inventory listing
  3. [3]Alpha Step D 500 Wafer Profiler Meter — KLA | Specs, Sourcing & Service | Waferpedia — waferpedia.comwaferpedia.com
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Last updated Oct 6, 2026.

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