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Technical specifications and manufacturing precision requirements for EUV lithography systems
Wednesday, February 11, 2026 at 04:10 AM
A summary of the technical specifications and operational precision required for ASML EUV lithography machines, including the use of tin (Sn) droplets for plasma generation, surface mirror roughness under 50pm, and temperature control at the 0.01°C level.
Context
As the semiconductor industry enters the 2026 high-volume production phase for next-generation chips, ASML remains the indispensable gatekeeper of the global AI supply chain. The company’s latest High-NA EUV systems represent a pinnacle of engineering, requiring tin droplets to be struck by lasers 50,000 times per second to create plasma at 200,000K—temperatures hotter than the sun’s surface. This process enables the printing of features at a resolution of just 8nm, supported by mirrors polished to a surface roughness of less than 50 picometers.
For investors, these technical feats translate into a complete monopoly on the tools required for the 2nm node and beyond. While each system costs approximately $380 million and weighs over 100 tons, demand is surging as Intel, Samsung, and TSMC race to build out AI infrastructure. With ASML projecting 2026 revenues between €34 billion and €39 billion, the successful ramp-up of these machines is the primary metric for the health of the high-performance computing market. Underpinning this growth is the industry’s transition to the "AI Infrastructure Supercycle," where advanced lithography is the only path to sustaining Moore’s Law.
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