Waferpedia

Disco

DAD 321 Wafer Dicing

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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 Disco DAD 321 is a wafer dicing saw designed for dicing semiconductor wafers. The DAD 321 supports 6-inch wafer sizes.[1][2]

DiscoDAD 321 Wafer Dicing
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What it is

The Disco DAD 321 is a dicing saw used for singulating semiconductor wafers into individual chips.[2]

The DAD 321 is classified under the Dicing & Grinding category of semiconductor back-end equipment.[2]

How it works

General reference — not yet source-verified

The blade is positioned by precision motion stages that move the wafer in the X, Y, and theta axes while the spindle rotates at high speed.

Deionized water is typically sprayed onto the cut zone to cool the blade and remove debris during the dicing process.

Where it fits in the process flow

General reference — not yet source-verified

Upstream processes include wafer grinding and polishing to achieve the required thickness before dicing.

Downstream processes include die sorting, pick-and-place, and wire bonding or flip-chip assembly.

Applications

General reference — not yet source-verified

The machine can also be employed for dicing substrates used in MEMS devices, LEDs, and power semiconductors.

What do the numbers mean?

Wafer handling1

Wafer Sizes
6 inch[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 wafer sizes does the Disco DAD 321 support?

The Disco DAD 321 supports wafer sizes up to 6 inches.[1]

Not publicly documented

The following facts about the DAD 321 Wafer Dicing are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • Fewer than 3 independently cited specifications for the DAD 321 Wafer Dicing are on record; the remainder await public documentation.

    Answerable by: an OEM datasheet, a cleanroom equipment inventory, or an engineer who operated or installed it

  • No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the DAD 321 Wafer Dicing are on record.

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

  • No publicly documented variants, configuration options, or revision breakpoints of the DAD 321 Wafer Dicing 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 DAD 321 Wafer Dicing 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 DAD 321 Wafer Dicing are on record.

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

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Sources & citations

Sources (2)Every fact above is drawn from these public sources
  1. [1]Equipment inventory listing
  2. [2]DAD 321 Wafer Dicing — Disco | Specs, Sourcing & Service | Waferpedia — waferpedia.comwaferpedia.com
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Last updated Sep 28, 2026.

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