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FormFactor

Alessi REL 4500 Wafer

Test & ProbeFormFactor Alessi REL family
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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 FormFactor / Cascade Microtech / Alessi REL 4500 is a 6-inch manual analytical wafer prober. The FormFactor Alessi REL 4500 Wafer belongs to the Alessi REL family in the Test & Probe category.[1][2]

FormFactorAlessi REL 4500 Wafer
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What it is

The FormFactor Alessi REL 4500 is a wafer prober designed for test and probe operations. The REL 4500 is a manual analytical prober that accommodates six-inch wafers.[1][2]

How it works

General reference — not yet source-verified

A manual analytical wafer prober operates by holding a wafer on a vacuum chuck that can be moved in the X, Y, and Z axes. The operator uses a microscope to visually align probe tips to contact pads on the device under test. Precision manipulators allow fine adjustment of probe position to achieve reliable electrical contact.

Where it fits in the process flow

General reference — not yet source-verified

In a semiconductor fab flow, the prober follows steps such as deposition, lithography, and etching. Probing allows engineers to evaluate electrical parameters and yield without committing to full packaging.

Applications

General reference — not yet source-verified

Material types commonly probed include silicon, III-V compounds, and other semiconductor substrates. The prober supports a range of device types, including discrete transistors, diodes, and integrated circuits.

What do the numbers mean?

Wafer handling2

Wafer Sizes
6 inch[1]
Accurate?
Model
REL 4500 Wafer[1]
Accurate?

Configuration & options2

Manual Analytical Prober[2]
Accurate?
Make
FormFactor / Cascade Microtech / Alessi[1]
Accurate?
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Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What type of equipment is the FormFactor Alessi REL 4500 Wafer?

The FormFactor Alessi REL 4500 Wafer is a wafer prober in the test and probe category.[2]

Is the REL 4500 a manual or automated prober?

The REL 4500 is a manual analytical prober.[1][2]

What wafer size does the REL 4500 accommodate?

The REL 4500 accommodates six inch wafers.[1][2]

What family does the FormFactor Alessi REL 4500 belong to?

The FormFactor Alessi REL 4500 Wafer belongs to the Alessi REL family.[2]

Not publicly documented

The following facts about the Alessi REL 4500 Wafer 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 Alessi REL 4500 Wafer are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • No publicly documented variants, configuration options, or revision breakpoints of the Alessi REL 4500 Wafer 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 Alessi REL 4500 Wafer 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 Alessi REL 4500 Wafer are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the Alessi REL 4500 Wafer is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (2)Every fact above is drawn from these public sources
  1. [1]Equipment inventory listing
  2. [2]waferpedia.com — waferpedia.comwaferpedia.com
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Last updated Oct 15, 2026.

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