TSMC’s advantage quantified

Taiwan Semiconductor Manufacturing Company now gets 77% of its wafer revenue from chips made on 7-nanometer-class processes and smaller, which means most of its business is concentrated in the hardest part of chipmaking. In the last quarter of 2025 alone, 3-nanometer chips made up 28% of wafer revenue, 5-nanometer made up 35%, and 7-nanometer made up 14%. (investor.tsmc.com) That is unusual because most manufacturers spread revenue across older, cheaper processes, while Taiwan Semiconductor Manufacturing Company is packed into the premium end where artificial intelligence chips are built. The company says advanced technologies are 7 nanometers and below, and that bucket has kept rising, from 69% of full-year wafer revenue in 2024 to 74% in 2025. (investor.tsmc.com) The simplest way to think about a process node is as the factory’s top shelf: smaller numbers mean denser circuits, lower power use, and more performance in the same space. When companies like Nvidia or Apple want the fastest chips with the tightest power limits, they usually need that top shelf. (investor.tsmc.com) That is why one monthly sales number got so much attention. On February 10, 2026, Taiwan Semiconductor Manufacturing Company reported January 2026 revenue of about NT$401.26 billion, up 19.8% from December 2025 and up 36.8% from January 2025. (pr.tsmc.com) A jump that large in January stands out because January is only one month and chip orders are usually planned far ahead. Investors read that kind of move as a sign that customers had already reserved capacity, especially for leading-edge production that cannot be expanded overnight. (pr.tsmc.com) The Arizona piece matters because Taiwan Semiconductor Manufacturing Company is no longer talking about one backup factory in the United States. Its Phoenix plan has grown from a $12 billion first fab announced in 2020 to a $165 billion site that the company says will include six wafer fabs, two advanced packaging facilities, and a research and development center. (tsmc.com) That expansion changed the story from “some U.S. production” to “a second manufacturing cluster.” In April 2024, the company said it would build a third Arizona fab to meet customer demand and use its most advanced semiconductor process technology in the United States. (pr.tsmc.com) The reason people talk about pre-booked Arizona capacity is that cutting-edge chip plants are not like ordinary factories that can switch on when orders arrive. Taiwan Semiconductor Manufacturing Company’s own Arizona page says the site is being built around advanced manufacturing, advanced packaging, and research, which are the exact bottlenecks artificial intelligence chip companies have been fighting over. (tsmc.com) The company’s scale makes the concentration even sharper. Taiwan Semiconductor Manufacturing Company says it served about 465 customers, manufactured more than 9,920 products, and had more than 17 million 12-inch-equivalent wafers of annual capacity in 2025, so this is not dominance in a niche corner of the market; it is dominance at industrial scale. (investor.tsmc.com) By April 9, 2026, the market was still waiting for the next hard datapoint, because Taiwan Semiconductor Manufacturing Company’s investor calendar lists March 2026 monthly sales for release on April 10 and first-quarter 2026 results for April 16. If those numbers stay hot after January’s 36.8% year-over-year surge and February’s reported 22.2% gain, the argument that customers are locking up advanced-node supply gets harder to dismiss. (investor.tsmc.com, investor.tsmc.com) So the real story is not just that Taiwan Semiconductor Manufacturing Company is growing. It is that most of its money now comes from the smallest, hardest-to-make chips, and every new revenue spike strengthens the idea that the world’s artificial intelligence buildout is being constrained by one company’s calendar, one company’s clean rooms, and one company’s expansion schedule. (investor.tsmc.com, pr.tsmc.com, tsmc.com)