SUSS MicroTec

Plate 01Coater developer (Suss ACS200Gen3) at uSIC, Tohoku University
The SUSS MicroTec ACS 200 Gen 3 is an automated coater and developer platform used in lithography. Coater and developer tools prepare wafers with photoresist and then develop the exposed resist pattern as part of the wafer patterning sequence.
The SUSS ACS 200 Gen 3 can be configured with a dual-arm wafer transfer system and a pre-aligner that rotates wafers to their flat or notch orientation for opaque silicon wafers and transparent glass wafers. The SUSS ACS 200 Gen 3 can also include 8 bake plates with proximity-bake support and 3 cool plates with proximity support.[1]
Coater and developer equipment sits around the exposure step in photolithography. Such tools are used before exposure to apply resist and perform associated thermal conditioning, and after exposure to develop the latent image so the patterned resist can guide later etch, implantation, plating, or lift-off steps.
Coater and developer platforms are used wherever patterned photoresist is needed on wafer substrates. Typical applications include semiconductor device fabrication, packaging, microsystems work, and process development on substrates such as silicon and glass.
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| ACS 200 Gen 3 Coater/Developer | Gen 3 | 2017 | Configured as a coater/developer system with 4 developers and a 4D setup | Equipment inventory listing[5] |
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Photoresist is the light-sensitive film that receives the pattern. Exposure changes its chemical behavior, allowing selective development of the desired image.
Alignment ensures that each new pattern lands in the correct position relative to previously formed structures, which is essential for multilayer device fabrication.
The following facts about the ACS 200 Gen 3 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 ACS 200 Gen 3 are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the ACS 200 Gen 3 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 ACS 200 Gen 3 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the ACS 200 Gen 3 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the ACS 200 Gen 3 are on record.
Answerable by: an OEM parts catalog or a service engineer
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Last updated Oct 20, 2026.
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