Laurell
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The Laurell WS 400 B 6 NP P is a spin coater.[1]
Spin coaters operate by placing a substrate on a rotating chuck. Liquid photoresist is dispensed onto the center of the substrate while it spins at high speed. Centrifugal force spreads the liquid outward, creating a thin, even coating. The final film thickness is determined by spin speed, acceleration, and the properties of the resist.
In the photolithography process, spin coating follows substrate cleaning and dehydration steps. The coated substrate then undergoes a soft bake to remove solvents before exposure. The spin coater is typically located in a cleanroom environment dedicated to coating and developing.
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The following facts about the WS 400 B 6 NP P Spin 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 specifications for the WS 400 B 6 NP P Spin are on record.
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 WS 400 B 6 NP P Spin are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the WS 400 B 6 NP P Spin 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 WS 400 B 6 NP P Spin 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 WS 400 B 6 NP P Spin are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
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Last updated Sep 30, 2026.
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