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Laurell

WS-650MZ

SpinnerLaurell WS-650MZ family
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The Laurell WS-650MZ is a spin coater. The Laurell WS-650Mz-23NPPB is used for spin coating resist and other materials on substrates. The Laurell WS-650Mz-23NPPB supports round substrates from 10–150 mm and square substrates up to 125 × 125 mm.[1][2]

WS-650MZ — snsf.stanford.edu
Fig. 01WS-650MZsnsf.stanford.edu[3]

What it is

The Laurell WS-650Mz-23NPPB is a spin coater. The Laurell WS-650Mz-23NPPB is used for spin coating resist and other materials on substrates.[1]

How it works

The Laurell WS-650Mz-23NPPB dispenses coating liquid onto a stationary substrate and then accelerates the substrate to a defined rotational speed for a set duration. The Laurell WS-650Mz-23NPPB uses a programmable logic controller. The Laurell WS-650Mz-23NPPB has a rotation speed range of 0–12,000 rpm. The Laurell WS-650Mz-23NPPB has speed accuracy of 1 rpm or better. The Laurell WS-650Mz-23NPPB supports at least 20 programs with at least 51 speed and time steps in each program. The Laurell WS-650Mz-23NPPB has a timer resolution of 0.1 s over a range of 1–5999.9 s per step. The Laurell WS-650Mz-23NPPB has controller accuracy below 0.006% of setpoint. The Laurell WS-650Mz-23NPPB has maximum acceleration of 80,000 rpm/s without load and 30,000 rpm/s with load.[4][2]

The Laurell WS-650Mz-23NPPB has an NPP natural polypropylene chamber. The Laurell WS-650Mz-23NPPB has a chamber diameter of 9.5 in, or 241 mm. The Laurell WS-650Mz-23NPPB supports round substrates from 10 mm to 150 mm in diameter and square substrates up to 125 × 125 mm. The Laurell WS-650Mz-23NPPB uses an oil-free vacuum pump with an adjustable vacuum range of 25–28 inHg, or 635–711 mmHg, and a flow capacity of at least 4.5 SCFM, or 0.11 m³/min.[4][2]

Where it fits in the process flow

General reference — not yet source-verified

Spin coaters sit in the coating portion of a lithography or thin-film workflow. Spin coaters are typically used after substrate cleaning and before bake, exposure, development, or other pattern transfer steps. Spin coaters are also used in nonlithographic thin-film preparation before drying, curing, annealing, or characterization.

Applications

General reference — not yet source-verified

Spin coaters are used to deposit uniform solution-based layers for lithography, dielectric coating, passivation, and functional film formation. Spin coaters are common in process development where film thickness, coating uniformity, and solvent compatibility are important.

What do the numbers mean?

Wafer handling1

Instrument description
For spin coating resist and other materials on substrates[1]
Accurate?

Performance1

Speed accuracy
≤1 rpm[2]
Accurate?

Configuration & options10

OEM
Laurell[3]
Accurate?
Model
WS-650MZ[3]
Accurate?
Equipment category
Spinner[3]
Accurate?
Category
Spin Coater[1]
Accurate?
Model
WS-650Mz-23NPPB[1]
Accurate?
Brand
Laurell Technologies[1]
Accurate?
Make/Model
Laurell Technologies WS-650Mz-23NPPB[1]
Accurate?
Rotation speed
0–12,000 rpm[2]
Accurate?
Included accessories
Leveling gauge, dual O-ring kits, dual waste collection units[2]
Accurate?
Instrument type
Spin Coater[1]
Accurate?
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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 kind of equipment is the Laurell WS-650Mz-23NPPB?

The Laurell WS-650Mz-23NPPB is a spin coater for spin coating resist and other materials on substrates.[1]

What substrate sizes does the Laurell WS-650Mz-23NPPB support?

The Laurell WS-650Mz-23NPPB supports round substrates from 10 mm to 150 mm in diameter and square substrates up to 125 × 125 mm.[4][2]

What speed range does the Laurell WS-650Mz-23NPPB provide?

The Laurell WS-650Mz-23NPPB provides a rotation speed range of 0–12,000 rpm with speed accuracy of 1 rpm or better.[4][2]

How programmable is the Laurell WS-650Mz-23NPPB?

The Laurell WS-650Mz-23NPPB supports at least 20 stored programs, and each program has at least 51 steps. The Laurell WS-650Mz-23NPPB has a process time range of 1–5999.9 s per step with 0.1 s resolution.[4][2]

What chamber and vacuum specifications are given for the Laurell WS-650Mz-23NPPB?

The Laurell WS-650Mz-23NPPB has an NPP natural polypropylene chamber with a 9.5 in, or 241 mm, chamber diameter. The Laurell WS-650Mz-23NPPB uses an oil-free vacuum pump with an adjustable vacuum range of 25–28 inHg, or 635–711 mmHg, and a flow capacity of at least 4.5 SCFM, or 0.11 m³/min.[4][2]

Not publicly documented

The following facts about the WS-650MZ 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 WS-650MZ 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-650MZ 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-650MZ 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-650MZ are on record.

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

  • The process node or technology generation of the WS-650MZ is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (4)Every fact above is drawn from these public sources
  1. [1]colorado.edu — colorado.educolorado.edu
  2. [2]instrumenthive.com — instrumenthive.cominstrumenthive.com
  3. [3]snsf.stanford.edu — snsf.stanford.edusnsf.stanford.edu
  4. [4]Laurell WS-650Mz-23NPPB Advanced Spin Coater for Semiconductor & Microelectronics Processing - InstrumentHive — instrumenthive.cominstrumenthive.com
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Last updated Oct 16, 2026.