Japanese researcher proposes simpler high-NA EUV optics design - Bits&Chips

A researcher at the Okinawa Institute of Science and Technology (OIST) has proposed a simplified optical architecture for high-NA EUV lithography, aiming to reduce the complexity and cost of next-gene... Read original →

The simplified high-NA EUV optical architecture proposed by OIST, while theoretically cost-reducing, compromises field size and resolution—making it unviable for high-volume manufacturing dominated by ASML and Zeiss. Its real significance lies in potentially enabling a secondary market for low-throughput, customized chip production. This is particularly relevant for mainland China, where access to cutting-edge lithography tools remains constrained, pushing firms like Huawei to pursue non-EUV pathways toward sub-3nm nodes. Such pressure may force equipment vendors to redefine the performance-cost frontier and explore modular, reconfigurable exposure platforms. Within 12–24 months, if validated for select layers at mature nodes (e.g., 28nm–7nm), this approach could disrupt the used-EUV equipment market and intensify geopolitical friction over semiconductor export controls.