ASML and Chipmakers Plan Larger Masks for AI Chips

ASML, a key supplier of semiconductor manufacturing equipment, is collaborating with major chipmakers to develop larger 12-inch masks for its High-NA EUV lithography tools. This initiative aims to enable the printing of larger, more complex AI and data center chips, addressing a current limitation in the technology. The company's next-generation High-NA EUV systems, while capable of finer feature resolution, currently have an exposure field half the size of established EUV machines. This smaller field restricts the size of the chip die that can be printed in a single exposure, a growing concern as AI processors, such as those designed by Nvidia, demand significantly more silicon. For instance, Nvidia's projected Rubin Ultra system is expected to require the equivalent of 10 wafers of silicon, highlighting the increasing manufacturing demand. ASML's Chief Technology Officer, Marco Pieters, stated that the transition to larger masks could increase system productivity by up to 40 percent. This move requires broad industry cooperation, as changing mask standards impacts blank suppliers, mask writers, inspection tools, and fab handling systems.