- ASML and TSMC are driving the semiconductor industry toward a transition to 12-inch masks.
- High-NA EUV lithography will play a crucial role in advanced chip manufacturing.
- The shift to a 12-inch format will enhance productivity and reduce chip manufacturing costs.
- This move requires changes across the semiconductor supply chain and industry-wide collaboration.
Semiconductor equipment giant ASML and chipmaker TSMC are pushing the semiconductor industry toward a transition to 12-inch masks, a larger format expected to boost the productivity and cost-effectiveness of high-NA EUV lithography in advanced chip manufacturing. The two companies announced a cross-industry initiative on September 7 to develop the necessary infrastructure to support this transition. The plan aims to achieve a pilot line for 12-inch masks by 2031 and anticipates the introduction of 12-inch high-NA lithography systems into advanced node production by 2033.
As chipmakers move toward smaller and more complex process nodes, high-NA EUV lithography is expected to play an increasingly important role. TSMC plans to begin using ASML's high-NA technology in the mass production of advanced nodes by 2030.
The Importance of High-NA EUV Lithography
The current challenge is that high-NA EUV will initially still use existing 6-inch masks. Transitioning to a 12-inch format will enable manufacturers to achieve higher productivity in the lithography process and reduce the limitations associated with increasingly complex chip patterning. ASML and TSMC stated that this transition could ultimately help lower chip manufacturing costs and improve fab productivity. "We expect the adoption of high-NA EUV to gradually increase along the device scaling roadmap, starting with the existing 6-inch masks and then further supporting 12-inch masks, which will enhance scanner productivity to meet the demand for smaller, faster, and more energy-efficient chips," said ASML President and CEO Christophe Fouquet.
ASML President and CEO Christophe Fouquet said.
The Necessity of Industry-Wide Collaboration
This move is not just about making larger masks; it requires a comprehensive change across the semiconductor supply chain, including mask manufacturing, inspection, and other supporting technologies. Therefore, ASML and TSMC are positioning this effort as an industry-wide initiative rather than one limited to just these two companies. Many major ecosystem partners and suppliers have expressed interest in participating. For TSMC, this transition is directly related to the increasingly complex nature of advanced chips. As process nodes advance, the company expects more layers to require high-NA EUV, especially as transistor architectures become more complex.
"We have always believed that when the industry collaborates to solve complex problems, it unlocks possibilities that no single company could achieve alone," said Dr. C.C. Wei, Chairman and CEO of TSMC. "By integrating expertise across the industry value chain, we hope to continue delivering the benefits of cutting-edge technology, lowering barriers through continuous innovation, and enabling advanced solutions to be accessible at scale." The proposed timeline gives the industry several years to develop and validate a new mask ecosystem. The goal is to achieve a pilot line by 2031, with plans to introduce 12-inch high-NA lithography systems into advanced node production by 2033.
As chipmakers seek to produce more powerful and energy-efficient processors while controlling the costs and complexity of advanced manufacturing, this transition may become increasingly important.
The Industry Impact of the 12-Inch Mask Transition
As chip technology advances, the adoption of 12-inch masks will not only enhance productivity but also reduce manufacturing costs, which is crucial for the industry. The adoption of high-NA EUV lithography will help manufacturers meet the demands of increasingly complex chip designs. This transition requires collaboration across the industry because the changes involved are not limited to ASML and TSMC but include all aspects of the supply chain. Such collaboration will foster technological innovation and ensure the industry can maintain its leading position in a competitive market.

