TECHNOLOGY
ASML Extreme Ultraviolet Lithography
The Dutch company's $380 million, 180-ton machines that pattern circuits onto silicon using 13.5-nanometer light—fewer than 200 units worldwide, indispensable for frontier chips, irreplaceable if disrupted.
ASML Holding N.V., headquartered in Veldhoven, Netherlands, manufactures the extreme ultraviolet (EUV) lithography systems required for producing semiconductors at the smallest process nodes. EUV lithography uses light with a wavelength of 13.5 nanometers—roughly forty times shorter than the deep ultraviolet light used in previous-generation systems—to pattern circuit features smaller than what longer wavelengths can resolve. Producing 13.5nm light requires vaporizing molten tin droplets with high-power lasers in a vacuum chamber, collecting the resulting plasma emission, and focusing it with mirrors polished to sub-nanometer precision. Each EUV system weighs approximately 180 tons, contains over 100,000 components sourced from more than 800 suppliers across dozens of countries, costs approximately $380 million, and requires multiple Boeing 747 cargo flights to transport. Fewer than 200 EUV machines operate globally. Every frontier AI chip passes through one of them. ASML's monopoly reflects not anticompetitive behavior but the extreme technical difficulty of the physics and engineering required; no competitor is within a decade of replicating the capability.
