Waferpedia

SUSS MicroTec

MA6/MA4

MA6/MA4 — ece.utoronto.ca
Fig. 01MA6/MA4ece.utoronto.ca[1]

Wafer size

wafers up to 4″ (MA4) or 6″ (MA6); also 1 cm² pieces

Optics

< 1 µm[1]

What is it?

The MA6 and MA4 Mask Aligners use UV light to transfer patterns from photomasks onto substrates coated with photoresist. The source states exposure resolution of less than 1 µm, topside alignment accuracy of 500 nm, and exposure modes including hard contact, soft contact, proximity, and flood.

What can it run?

Process applications and technology nodes documented for this tool.

  • Transferring patterns from photomasks onto photoresist-coated substrates

What do the numbers mean?

Wafer handling1

Substrate accommodation
1 cm² pieces and wafers up to 4″ (MA4) or 6″ (MA6)[1]
Accurate?

Optics & imaging6

Exposure resolution
< 1 µm[1]
Accurate?
Alignment accuracy
Topside – 500 nm[1]
Accurate?
Exposure modes
Hard contact, soft contact, proximity, flood[1]
Accurate?
Spectral range
365 nm – 405 nm[1]
Accurate?
Uniformity
+/- 5% over exposure area[1]
Accurate?
Image capture
CCD camera and monitor[1]
Accurate?

Vintage & configurations

Documented models & variants

DesignationGenerationVintageChangesSource
MA4Accommodates wafers up to 4".ece.utoronto.ca[1]
MA6Accommodates wafers up to 6".ece.utoronto.ca[1]
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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

No research found yet — worked with this tool? Share what you know.

Not publicly documented

The following facts about the MA6/MA4 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 MA6/MA4 are on record.

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

  • The control-system platform and OS era of the MA6/MA4 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 MA6/MA4 are on record.

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

  • The process node or technology generation of the MA6/MA4 is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the MA6/MA4 are on record.

    Answerable by: an OEM parts catalog or a service engineer

No research found yet — worked with this tool? Share what you know.

Sources & citations

Sources (1)Every fact above is drawn from these public sources
  1. [1]ece.utoronto.caece.utoronto.caece.utoronto.ca
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Last updated Jul 29, 2026.

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