Definition
An EUV scanner generates and conditions 13.5-nanometer light, reflects it from a patterned reticle through all-reflective projection optics, and synchronizes mask and wafer stages in vacuum to expose resist; High-NA systems use a larger numerical aperture.
Process position
Inputs
- EUV reticle
- EUV-compatible resist stack
- Exposure recipe
- Alignment and correction data
Outputs
- Exposed resist image
- Source and scanner telemetry
- Dose, focus, and overlay records
How it works
- 01Generate and collect EUV light
- 02Load and align reticle and wafer
- 03Map focus and wafer level
- 04Scan synchronized exposure fields
- 05Monitor dose, contamination, and overlay
Role in the production flow
EUV reduces the number of pattern-splitting steps for selected advanced layers, but the production cell still depends on resist chemistry, mask control, vacuum cleanliness, computational correction, and high-sensitivity inspection.
A reflective projection lithography system using 13.5-nanometer extreme-ultraviolet light to pattern advanced semiconductor layers.
Boundary: The cited manufacturers document the equipment category and its intended uses; this record does not independently validate vendor performance claims or rank products.
Qualification and production boundaries
Layer assignment must consider achievable imaging, stochastic defects, mask effects, overlay, resist process, throughput, availability, and whether 0.33-NA or High-NA field and anamorphic constraints fit the product flow.
Layer assignment must consider achievable imaging, stochastic defects, mask effects, overlay, resist process, throughput, availability, and whether 0.33-NA or High-NA field and anamorphic constraints fit the product flow.
Boundary: Actual acceptance limits, recipes, throughput, availability, and ownership economics are product-, process-, site-, and contract-specific.
Sources
Citations support the tagged claims above. Access dates record when Maha Strategies last checked the public source.
- [1]EUV Lithography Systems · ASML · accessed 2026-08-24
- [2]Lithography principles · ASML · accessed 2026-08-13
- [3]The Rayleigh criterion for resolution · ASML · accessed 2026-08-13