ASML-Nxe3400

The ASML TWINSCAN NXE:3400 family is an EUV lithography platform for advanced semiconductor manufacturing. The model family includes variants with different specifications, so a numerical performance claim needs a suffix such as NXE:3400B. The scanner is one part of a production ecosystem that also requires qualified masks, resists, metrology, and process integration.

The NXE:3400B uses 0.33 numerical-aperture reflective projection optics. ASML’s product documentation specifies Zeiss four-times-reduction optics and a maximum scanned field of 26 by 33 mm. EUV’s approximately 13.5 nm wavelength requires reflective optics and a vacuum environment. Numerical aperture and wavelength jointly influence imaging capability.

ASML NXE:3400 Conceptual comparison; not a manufacturing specification or scale drawing NXE:3400B optics 13.5 nm EUV / 0.33 NA 4× reduction reflective system Exposure field Maximum 26 × 33 mm Step-and-scan pattern transfer Production measures Conditional throughput target Overlay + focus + uptime A model-specific throughput target requires its dose and exposure conditions to remain meaningful.

Throughput specifications depend on the exposure conditions. The published NXE:3400B target of at least 125 wafers per hour is tied to a stated dose, field size, and shot count. Changing dose or the wafer exposure plan changes the workload. A quoted scanner rate therefore requires its accompanying conditions and should not be treated as a guaranteed fab output.

Alignment and focus connect the scanner to the complete wafer process. Successive layers must be positioned relative to earlier patterns, and the surface height must be measured accurately. Wafer films and process history affect those measurements. Production qualification therefore assesses overlay and focus alongside nominal resolution.

The family marks an industrial stage of the EUV development effort. ASML’s history records customers ordering production-ready NXE:3400 systems in batches in 2016. That milestone is distinct from earlier prototype shipments and later variants. The useful historical description combines the named model, its documented conditions, and its role in a qualified manufacturing flow.

Sources and further reading. [ASML NXE:3400B product specification](https://www.asml.com/en/products/euv-lithography-systems/twinscan-nxe3400b); [ASML technology history](https://www.asml.com/en/company/about-asml/history).

Read ASML NXE:3400 as an industrial EUV scanner family whose useful performance depends on qualified imaging, alignment, and operating conditions.

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