TSMC's newest chip lines keep rising toward about 80% of wafer sales
The part of TSMC's business that makes the most advanced chips rose from 41% of wafer sales in 2020 to 77% in Q2 2026.
When your phone, search engine, car, or AI tool gets smarter, more of that intelligence is being etched through the same tiny set of factory lines.
TSMC's newest chip lines went from less than half of wafer sales in 2020 to more than three quarters by Q2 2026.
- AI chip demand from data centers
- customers moving high-end devices to newer production lines
The AI in your daily life may feel like software, but its progress is tied to physical factories whose most valuable work is increasingly concentrated in Taiwan's orbit.
Behind the numbersOpen
TSMC reports wafer revenue by chipmaking generation. "7nm-and-smaller" means chips made with TSMC's 7-nanometer, 5-nanometer, 3-nanometer, 2-nanometer and related newer production lines; these are the lines used for many high-end phones, data-center processors, and AI chips. Annual report figures show 41% in 2020, 50% in 2021, 53% in 2022, 58% in 2023, 69% in 2024, and 74% in 2025. TSMC's Q2 2026 technology split shows 2nm at 3%, 3nm at 30%, 5nm at 33%, and 7nm at 11%, totaling 77%. The 2026 projection is a year-end call based on the Q2 2026 mix and the continuing ramp of newer lines; it is not company guidance. Caveat: this measures TSMC revenue mix, not global market share, and overseas TSMC fabs are growing, though the most advanced production base remains deeply tied to Taiwan.