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Alessi REL 4800

Test & ProbeFormFactor Alessi REL family
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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.

Alessi REL 4800 — Inventory photo
Fig. 01Alessi REL 4800Inventory photo[1]

What it is

The FormFactor / Cascade Microtech / Alessi REL 4800 is a probe station used for electrical testing of semiconductor devices. The REL 4800 is also referred to as a prober. The REL 4800 handles 8-inch wafers.[2][1]

What do the numbers mean?

Wafer handling1

Wafer size
8 inch[2]
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Configuration & options7

with mounting bracket for probes[1]
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OEM
FormFactor / Cascade Microtech / Alessi[2]
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Model
REL 4800[2]
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Equipment type
Prober[2]
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Equipment type
Probe Station[1]
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with mounting bracket for probes[1]
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Make
FormFactor / Cascade Microtech / Alessi[1]
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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 kinds of measurements are typically performed on a probe station?General reference — not yet source-verified

Such systems are used for a broad range of electrical measurements, including basic continuity and leakage checks as well as more detailed characterization of device response under applied signals. The exact measurement depends on the connected instrumentation and the structure under test.

Why are alignment and contact control important in this equipment class?General reference — not yet source-verified

Electrical pads and test structures can be small and sensitive, so the probe must land accurately and consistently to obtain valid data without damaging the surface. Stable positioning and controlled contact are central to measurement repeatability.

Not publicly documented

The following facts about the Alessi REL 4800 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 4800 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 4800 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 4800 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 4800 are on record.

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

  • The process node or technology generation of the Alessi REL 4800 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]Inventory photo
  2. [2]Equipment inventory listing
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Last updated Oct 19, 2026.

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