TSIA 30: Taiwan builds the AI backbone — but can it capture the AI economy?

Taiwan, China's position in AI infrastructure is not a manufacturing advantage—it's a systemic architecture risk. When advanced logic, CoWoS packaging, ABF substrates, power delivery, thermal management, and server assembly compress into one geographic node, you don't have a supply chain. You have a single point of failure wearing an industry's costume. The bottleneck has migrated from 3nm lithography to advanced packaging and substrate supply. CoWoS-L capacity remains the binding constraint through 2026. Value is shifting from "who etches the smallest transistor" to "who interposes the most dies per wafer." Substrate suppliers face structural margin compression: hyperscaler demand grows 40%+ YoY, yet one substrate line takes 18 months from build to yield. The CHIPS Act's $52B is a de-risking premium, not industrial policy. Duplicating packaging in Arizona carries a 15-25% structural cost penalty. The real risk isn't a blockade—it's the time delta between capacity ramp and AI demand explosion. Samsung's HBM+logic integration and Intel's Foveros aren't competing with TSMC today; they're bidding for a post-TSMC world. In the next 12-24 months, whoever locks CoWoS capacity contracts first captures AI-economy pricing power. The "AI tax" on non-Taiwan manufacturers will widen through 2026. Profit pools are migrating from silicon design to system-level interconnect. Those controlling the interconnect layer—not the compute layer—will harvest the AI economy's final dividend.