Advanced Packaging (CoWoS / SoIC)
Active
TSMC

Overview
TSMC's 2.5D and 3D packaging technologies that integrate GPU dies with stacks of high-bandwidth memory on silicon interposers — the technology every leading AI accelerator depends on, and for two years the binding constraint on global AI chip supply. Capacity is being expanded roughly fourfold from late-2024 levels, including the new AP7 plant in Chiayi and two planned Arizona packaging facilities.
Aggressive expansion toward ~130k CoWoS wafers/month by end of 2026, up from ~35k in late 2024; 10–20% of the 2026 capital budget