2 nm High-NA EUV Lithography R&D Programme

Engineering the future of semiconductor manufacturing.

Research and development of a next-generation High-Numerical-Aperture Extreme Ultraviolet lithography platform for 2 nm and sub-2 nm semiconductor manufacturing.

Advancing towards the Angstrom era

A national-scale engineering challenge.

Semiconductor manufacturing at the 2 nm generation requires one of the most complex engineering platforms ever created. Conventional optical lithography cannot efficiently print the most critical features required by advanced logic and memory devices.

High-NA EUV uses 13.5 nm extreme-ultraviolet light and reflective optics with approximately 0.55 numerical aperture. Current systems target approximately 8 nm optical resolution and support 2 nm and sub-2 nm process generations.

The programme is envisioned as a long-term national and industrial initiative involving scientists, universities, manufacturers, precision-engineering companies, materials developers and government institutions.

Programme direction

Key technology indicators.

Programme-level targets requiring research, prototyping and qualification.

Target semiconductor generation2 nm and sub-2 nm logic
EUV wavelength13.5 nm
Optical architectureReflective multilayer-mirror system
Numerical apertureHigh-NA, approximately 0.55
Target optical resolutionApproximately 8 nm class
Wafer platform300 mm silicon wafer
Exposure environmentUltra-high vacuum
Patterning approachSingle exposure where technically and economically feasible
Mature production objectiveMore than 200 wafers per hour
Primary applicationsAdvanced logic, AI, HPC, memory and quantum devices

Why it matters

Capability with strategic impact.

01

Semiconductor self-reliance

Strengthen supply-chain resilience and technological sovereignty around a critical manufacturing dependency.

02

Advanced computing

Enable denser, more efficient processors for AI, HPC, data centres and communications.

03

Scientific innovation

Unite plasma physics, optics, photochemistry, nanotechnology, mechatronics, materials, vacuum, software and AI.

04

Industrial ecosystem

Create demand for precision manufacturing, specialty materials, sensors, lasers, robotics, electronics and software.

Our vision

Establish a globally competitive research and industrial ecosystem for next-generation lithography.

Our mission
  • Develop stable 13.5 nm EUV generation
  • Build atomic-precision reflective optics
  • Create nanometre-accurate wafer and reticle stages
  • Advance masks, pellicles, resists and underlayers
  • Develop computational lithography and metrology
  • Integrate subsystems toward fab qualification

Understanding EUV

How the technology works.

Extreme-ultraviolet radiation behaves differently from visible and deep-ultraviolet light, changing the architecture of the entire machine.

01

Generate light

Microscopic molten-tin droplets are reshaped by a pre-pulse and struck by a powerful CO₂ laser. The hot plasma emits radiation; a collector captures energy around 13.5 nm. Commercial sources repeat this process up to roughly 50,000 times per second.

02

Guide with mirrors

EUV is absorbed by air and most materials. The exposure therefore operates in vacuum and uses multilayer reflective mirrors rather than conventional glass lenses.

03

Pattern the wafer

A reflective mask carries an enlarged circuit pattern. Projection optics reduce and image it onto photoresist-coated silicon; development and etching transfer the pattern.

04

Increase numerical aperture

Resolution broadly follows CD = k₁λ / NA. Raising NA from 0.33 to approximately 0.55 improves resolution and image contrast toward the 8 nm class.

Core system architecture

Nine interdependent R&D domains.

4.1

EUV light source

Stable, high-power 13.5 nm radiation generated through laser-produced plasma.

Research priorities

  • High-frequency molten-tin droplets
  • Droplet imaging and trajectory control
  • Pre-pulse and CO₂ main-pulse synchronization
  • Plasma conversion efficiency
  • Collector protection and tin-debris mitigation
  • Source stability, thermal management and calibration
Major challenge

Strike microscopic droplets thousands of times per second while protecting collector optics and maintaining usable light intensity, efficiency, availability and lifetime.

4.2

High-NA reflective optics

Atomic-precision multilayer mirrors replace refractive lenses throughout the EUV optical path.

Research priorities

  • Molybdenum-silicon multilayer coatings
  • Atomic-level polishing and aspherical fabrication
  • High-NA anamorphic projection optics
  • Wavefront-error measurement
  • Contamination and thermal-deformation control
  • Actuated alignment and reflectivity optimization
Major challenge

Commercial-scale High-NA optical systems contain tens of thousands of precision parts and require extraordinary manufacturing, alignment and metrology capability.

4.3

Reflective masks & pellicles

Low-defect reflective masks carry the circuit pattern while pellicles protect them in the exposure environment.

Research priorities

  • Low-defect mask substrates
  • Multilayer reflective coatings
  • EUV absorber-pattern development
  • Mask blank and actinic inspection
  • Defect repair
  • High-transmission, thermally stable pellicles
  • Mask cleaning, handling and storage
Major challenge

Maintain pattern fidelity, reflectivity and protection under EUV exposure without introducing printable defects.

4.4

Wafer & reticle stages

High-speed synchronized motion with nanometre-scale positional control.

Research priorities

  • Precision guided stages and linear motors
  • Interferometric position measurement
  • Vibration isolation
  • Real-time trajectory correction
  • Reticle-wafer synchronization
  • Thermal expansion compensation
  • Dual-stage handling and acceleration control
Major challenge

Move wafer and reticle rapidly while preserving focus, overlay and settling accuracy.

4.5

Vacuum & contamination control

The complete optical path operates in vacuum because air absorbs EUV radiation.

Research priorities

  • Multi-zone vacuum chambers and pumps
  • Hydrogen-based contamination mitigation
  • Molecular and particle monitoring
  • Outgassing qualification
  • Vacuum-compatible materials
  • Load locks and transfer robotics
  • Emergency isolation
Major challenge

Control molecular contamination, particles and outgassing across a complex serviceable machine.

4.6

Photoresist & process materials

EUV-sensitive material systems must balance resolution, sensitivity, roughness and defectivity.

Research priorities

  • Chemically amplified and metal-oxide resists
  • Low-dose, high-sensitivity materials
  • Line-edge roughness reduction
  • Stochastic-defect control
  • Outgassing control
  • Advanced underlayers and bake optimization
  • Pattern-collapse prevention
  • Dry and molecular resists
Major challenge

Improving resolution, sensitivity or roughness can negatively affect the other parameters.

4.7

Metrology & inspection

Development depends on measurement systems capable of verifying every critical subsystem and process result.

Research priorities

  • CD scanning electron microscopy
  • E-beam defect inspection
  • Atomic-force microscopy
  • Scatterometry and interferometry
  • Overlay and wavefront metrology
  • Mask and particle inspection
  • Film thickness and surface roughness
  • Computational defect classification
Major challenge

Measurement capability must advance alongside the exposure platform.

4.8

Computational lithography

Software compensates for optical and process limitations and improves pattern fidelity.

Research priorities

  • Optical proximity correction
  • Inverse lithography technology
  • Source-mask optimization
  • Mask-rule checking
  • Resist and etch-bias modelling
  • Placement and overlay correction
  • Digital twins and predictive maintenance
  • AI-assisted defect classification
Major challenge

Connect accurate physical models with manufacturable masks, process control and production-scale computation.

4.9

Integrated control platform

A deterministic, fault-tolerant real-time architecture coordinates the complete machine.

Research priorities

  • Source, droplet and laser timing
  • Mirror alignment and stage motion
  • Focus, levelling and vacuum
  • Wafer and reticle handling
  • Temperature and process recipes
  • Safety interlocks
  • Equipment-health monitoring
Major challenge

Safety-critical controls must remain separated from higher-level AI optimization functions.

Execution framework

Sixteen work packages.

Subsystem research progresses toward an integrated exposure demonstrator and repeatable 300 mm wafer processing.

PackageDomainMain deliverable
WP-01EUV plasma physics

Stable laboratory EUV-emission source

WP-02Droplet generator

Controlled high-frequency tin-droplet stream

WP-03High-power laser

Synchronized pre-pulse and main-pulse system

WP-04Collector optics

EUV collector with debris protection

WP-05Multilayer coatings

High-reflectivity 13.5 nm mirror coatings

WP-06Projection optics

High-NA laboratory optical column

WP-07Mask technology

Reflective masks, inspection and repair

WP-08Pellicle technology

Thermally stable EUV pellicle

WP-09Resist materials

Low-defect EUV-sensitive materials

WP-10Precision stages

Nanometre-scale wafer and reticle stages

WP-11Vacuum engineering

Contamination-controlled vacuum platform

WP-12Metrology

Overlay, CD and defect-measurement systems

WP-13Computational lithography

OPC, ILT and process-modelling software

WP-14Machine controls

Synchronized real-time control system

WP-15System integration

Integrated exposure demonstrator

WP-16Pilot qualification

Repeatable 300 mm wafer processing

15–25 year programme

Development roadmap.

A complete commercial EUV machine is a national-scale programme. Acceleration requires extensive cooperation, technology access and sustained public-private investment.

01

Foundation & consortium

  • Programme governance and scientific leadership
  • Academic and industrial partner network
  • Initial plasma, coating and vacuum laboratories
  • System requirements and reference architecture
  • Patent, freedom-to-operate and workforce programmes
02

Subsystem research

  • Low-power 13.5 nm source demonstration
  • Tin-droplet and multilayer-coating prototypes
  • Laboratory mirror metrology
  • Resist, mask, stage and vacuum programmes
  • Initial computational-lithography platform
03

Static exposure demonstrator

  • Integrate source, collector and simplified optics
  • Pattern test wafers
  • Characterize resolution, dose and defects
  • Establish mask and resist process loops
  • Improve debris and contamination control
04

Alpha scanner

  • Scanning wafer and reticle stages
  • Advanced projection optics
  • 300 mm wafer handling
  • Automatic alignment, focus and levelling
  • Repeatable multi-field exposure and overlay optimization
05

Beta & pilot line

  • Improve source power and uptime
  • Reduce stochastic defects
  • Increase throughput
  • Demonstrate multi-layer structures
  • Install beta systems and collect reliability data
06

Industrial qualification

  • Production-level availability
  • Qualify critical 2 nm and sub-2 nm layers
  • Manufacturing and service supply chains
  • Spare-part, calibration and field support
  • Customer and regulatory qualification

Research infrastructure

Facilities built for atomic-scale control.

Core laboratories

  • EUV plasma source
  • High-power laser
  • Ultra-high vacuum
  • Thin-film and multilayer coating
  • Ultra-precision optics
  • Optical metrology
  • Mask fabrication and inspection
  • Photoresist chemistry
  • Precision mechatronics
  • Semiconductor processing
  • Computational lithography
  • Reliability and environmental testing

Cleanroom & utilities

  • Class 1/Class 10 critical areas
  • 300 mm wafer processing
  • Molecular contamination control
  • Temperature, humidity and vibration stability
  • EMI control
  • High-purity gases and ultra-pure water
  • Chemical handling and abatement
  • Redundant power and cooling

Supporting equipment

  • E-beam writing and inspection
  • SEM and AFM systems
  • Ion-beam figuring
  • Interferometers and spectrometers
  • Thin-film deposition
  • Etch and coat/develop tracks
  • Coordinate measurement
  • High-performance computing clusters

Multidisciplinary team

Thousands of specialists. One integrated mission.

A mature programme may require several thousand direct researchers and engineers plus a much larger supplier and academic ecosystem.

Scientific

  • Plasma and optical physicists
  • Laser and material scientists
  • Photochemists and surface scientists
  • Vacuum scientists
  • Semiconductor process engineers
  • Computational imaging researchers

Engineering

  • Precision mechanical and mechatronics
  • Control, electrical and power
  • Embedded systems and robotics
  • Thermal and reliability
  • Cleanroom and facilities
  • Systems integration

Software

  • Real-time software
  • Computational lithography
  • Digital twins
  • Machine learning and computer vision
  • Equipment automation
  • Cybersecurity and data platforms

Programme

  • Systems engineering and programme management
  • Supplier development and quality assurance
  • Semiconductor IP and patent law
  • Export-control compliance
  • Environmental health and safety
  • Technology commercialization

Verified progress

Technical success criteria.

Performance must be demonstrated through measurable, repeatable indicators—not aspiration alone.

EUV sourcePower, stability, conversion efficiency and uptime
ImagingResolution, contrast and process window
OpticsWavefront error, reflectivity and contamination rate
OverlayLayer-to-layer placement accuracy
StagesPosition accuracy, speed, vibration and settling time
MaskDefect density, reflectivity and pattern fidelity
ResistDose, roughness, sensitivity and stochastic defects
Wafer outputWafers exposed per hour
ReliabilityAvailability, MTBF and recovery time
ProcessYield, CD uniformity and edge placement
SustainabilityEnergy, water, chemical and material consumption

Global status · July 2026

High-NA EUV exists—and continues to advance.

Commercial High-NA platforms use 13.5 nm light and approximately 0.55 NA for 2 nm, sub-2 nm logic and advanced memory.

Imec has demonstrated single-exposure High-NA patterning and installed advanced sub-2 nm R&D capability. ASML and Intel announced use of High-NA EUV for selected Intel 18A product layers in high-volume manufacturing.

The programme therefore focuses on indigenous, collaborative and specialized capabilities within the global High-NA EUV ecosystem—not on claiming the technology does not exist.

Applications

Computing platforms enabled by advanced patterning.

01
AI

AI

High-density processors and accelerators for large models, machine vision and intelligent automation.

02
HPC

HPC

Advanced CPUs, GPUs and custom accelerators for scientific modelling and engineering.

03
DAT

Data centres

More computing performance per unit area and potentially better chip-level energy efficiency.

04
ADV

Advanced memory

High-density DRAM and future memory architectures requiring precise patterning.

05
TEL

Telecommunications

Processors and RF control devices for advanced communication infrastructure.

06
AUT

Automotive & aerospace

Compute for autonomous systems, simulation, navigation and sensor fusion.

07
STR

Strategic electronics

Domestic capabilities for critical systems, subject to applicable laws and export controls.

08
QUA

Quantum technology

Advanced patterning pathways for selected quantum-device fabrication.

Building a collaborative ecosystem

No single institution can build every component alone.

We invite participation from across research, manufacturing, precision engineering, materials, software, finance and public institutions.

Government research agenciesSemiconductor manufacturersUniversities and national laboratoriesOptics and photonics companiesLaser-system manufacturersPrecision-engineering companiesMaterials and chemical manufacturersVacuum, robotics and automation suppliersSoftware, AI, metrology and inspection specialistsInvestors and strategic funding institutions

Partnership models

  • Joint research programmes
  • Sponsored research laboratories
  • Technology-development agreements
  • Academic grants and doctoral fellowships
  • Supplier-development programmes
  • IP licensing
  • Pilot-line participation
  • International scientific collaboration
  • Strategic public-private investment
Partner with the programme

Join the mission

Work on some of engineering’s most demanding challenges.

We are building an ecosystem where physicists, engineers, material scientists and software professionals work across plasma and source research, lasers, optics, coatings, semiconductor processes, vacuum, mechatronics, computation, metrology, AI, systems engineering and supplier development.

View opportunities Submit research profile University collaboration

Responsible development

Performance must include resource efficiency.

EUV scanners require substantial power, cooling and infrastructure, but can reduce patterning, deposition and etching steps compared with complex DUV multi-patterning.

Knowledge centre

Frequently asked questions.

Does a 2 nm chip contain features exactly 2 nm wide?

Not necessarily. “2 nm” is a process-generation designation; physical dimensions vary by architecture, layer and manufacturer.

Does a 2 nm lithography machine use 2 nm light?

No. EUV lithography uses approximately 13.5 nm light. High-NA optics, masks, resists and computation enable advanced process generations.

Why are mirrors used instead of lenses?

EUV radiation is absorbed by conventional lens materials, so specialized multilayer mirrors reflect and guide it.

Why must the system operate in vacuum?

Air absorbs EUV radiation; a controlled vacuum is required throughout the optical path.

Can one organization develop a complete EUV machine?

A viable platform requires a broad ecosystem of research institutions, suppliers, manufacturers and government agencies.

How long can development take?

A complete indigenous platform may require 15–25 years, while individual subsystems and useful research capabilities can emerge earlier.

Can an EUV machine alone manufacture a 2 nm chip?

No. A fab also needs deposition, etching, implantation, cleaning, metrology, inspection, packaging, process integration and chip-design technology.

Is High-NA EUV already being used?

Yes. High-NA systems are in advanced R&D and early production use; this programme focuses on indigenous, collaborative and specialized ecosystem capabilities.

Technical enquiry

Partner with us to build the next generation.

Discuss research collaboration, subsystem development, academic participation, supplier capability or strategic investment.

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