ASML
The ASML PAS 5500/300 C DUV is a deep-ultraviolet wafer stepper. The ASML PAS 5500/300 C DUV uses a 248 nm lens column with 0.63 N.A. The ASML PAS 5500/300 C DUV accommodates wafer sizes from 3 inch up to 200 mm.[1][2]

The ASML PAS 5500 300 C DUV uses a DUV lens column at two hundred forty eight nanometers and a Zeiss lens with variable numerical aperture.[1]
The ASML PAS 5500 300 C DUV performs step and repeat exposure with laser-controlled stage motion.[1]
The ASML PAS 5500 300 C DUV supports annular illumination modes and backside alignment.[1]
The ASML PAS 5500 300 C DUV sits in the lithography module of the fab flow, where it exposes patterned resist on a wafer before later pattern transfer steps.
The ASML PAS 5500 300 C DUV is used after mask preparation and resist coating and before subsequent development and etch or deposition steps.
Documented failure modes, common issues, and field considerations.
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| PAS 5500/300C | DUV | 1996 | Can be configured for 3 inch to 6 inch wafers; upgrade to 5500/300C via lens upgrade; upgraded workstation; extended N/A option; Cymer 5600 laser; laser chamber changed; laser path optics recently replaced; CM options listed include REFL Img Sensor, PEP 1, PEP 2, reticle error compensation, flatness model, LSQ Disto Model, mark sensor, batch streaming, intensity 2, aerial key, extended NA range, focal adjustment, alignment reports, annular illumination, scribblelane marks, library, and visual alignment camera. | Equipment inventory listing[2] |
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Minimum feature size is less than 0.20 µm.[1]
Wafer sizes from 3 inches up to 200 mm can be accommodated.[1]
The lens provides a 4:1 reduction.[1]
The field size is 22 mm by 22 mm.[1]
The system uses 6-inch by 0.250-inch thick quartz masks.[1]
The following facts about the PAS 5500 300 C DUV 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 PAS 5500 300 C DUV are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the PAS 5500 300 C DUV are not on record.
Answerable by: an engineer who operated it or OEM installation records
The process node or technology generation of the PAS 5500 300 C DUV is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the PAS 5500 300 C DUV are on record.
Answerable by: an OEM parts catalog or a service engineer
Last updated Oct 11, 2026.
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