Building The World’s Most Powerful Lasers

To Revive Moore's Law

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The foundation
Semiconductors are the foundation of modern society – they are an essential part of our economic and national security, from cutting edge AI, down to every day household items.
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TRANSFORMATION
xLight is building the world’s most powerful lasers to transform how those chips are made, making them better, faster, and cheaper.
Close-up of a colorful, reflective microchip surface with intricate circuit patterns.Aerial view of a large beige industrial building with rooftop cooling units, surrounded by a parking lot with many cars and green trees.
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vision

The Problem

EUV LITHOGRPHY

The Foundation of Advanced 
Chip Manufacturing


The most advanced semiconductor manufacturing relies on Extreme Ultraviolet (EUV) light to perform lithography – the process that determines the resolution and accuracy of the circuit patterns on each chip.

THE EUV BOTTLENECK

Why Today’s EUV Light 
Sources Fall Short




Today’s EUV light source – Laser Produced Plasma (LPP) – only provides 25% of the light required by current lithography technology and is physically incapable of meeting the power demands of future lithography technologies and techniques. Today’s light source is a significant limiting factor in advanced semiconductor manufacturing.

The most advanced semiconductor manufacturing relies on Extreme Ultraviolet (EUV) light to perform lithography – the process that determines the resolution and accuracy of the circuit patterns on each chip. EUV lithography is the foundation for advanced chip manufacturing.

EUV lithography is the single most costly part of the chip manufacturing workflow, representing 40% of the cost of each wafer. But it also provides the greatest opportunity for innovation and increased productivity. The world’s most advanced EUV lithography tools can deliver higher
throughput with more powerful EUV light.

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vision

The Solution

FREE ELECTRON LASERS

A New Class of EUV Light: Free Electron Lasers


xLight is building the world’s most powerful Free Electron Lasers (FELs) to replace LPP and revolutionize advanced semiconductor manufacturing. 

IMPACT AND BENEFITS

Unlocking the Next Generation of Semiconductor Manufacturing




xLight's system will unlock the full potential of current state of the art lithography tools, transform existing semiconductor fab capabilities, and enable next generation chip 
production – all while reducing capital and operating expenses.

xLight is building the world’s most powerful Free Electron Lasers (FELs) to revolutionize advanced semiconductor manufacturing. These FELs are capable of producing substantially more EUV power than today’s most advanced light source.

xLight's systems will unlock the full potential of current state of the art lithography tools, transform existing semiconductor fab capabilities, and enable next generation chip production – all while reducing capital and operating expenses.

States With Existing or Planned EUV
Wafer Defect Density
Standard EUV
xLight EUV
Good die Defect site
Cutting the Cost of EUV in Half
Current EUV
−50%
EUV cost
reduction
xLight EUV
50%
reduction in
EUV cost
20%
lower total
wafer cost
EUV cost (standard) EUV cost (xLight) xLight saving Other fab costs
EUV share of chip cost: xLight internal analysis  ·  Baseline wafer cost: TSMC 3nm ~$19,500 (TrendForce / SiliconAnalysts, 2026)

more chips

By producing 4X more EUV power, xLight enables fabs to manufacture chips with smaller, more efficient feature sizes, increasing output per scanner and extending the capabilities of next- generation lithography.

Deployment of xLight FELs across existing US fabs could increase manufacturing productivity by 50% while deployment alongside green field sites could deliver up to 100% greater productivity.

BETTER QUALITY

Programmable light characteristics and advanced patterning improvements deliver higher yield and tighter process control, producing chips with greater consistency and fewer defects at scale.

LOWER COST

By reducing EUV cost by 50% and eliminating the need for consumables like tin or hydrogen,
xLight's FEL systems significantly lowers capital and operating expenditures for fabs.