semiconductor supply chain

The semiconductor supply chain is a geopolitical system because advanced chips require rare manufacturing knowledge, scarce equipment, concentrated fabs, and cross-border logistics. **Foundries sit at the center of that system.** Fabless companies may be global, but leading-edge wafer manufacturing is concentrated among a few firms and a few geographies. Equipment, materials, EDA, IP, packaging, memory, and final demand then add additional dependencies. | Geography | Strategic role | Main exposure | |---|---|---| | Taiwan | Advanced logic manufacturing led by TSMC | Geographic concentration and cross-strait risk | | South Korea | Memory, Samsung Foundry, advanced packaging | Memory cycles and regional security risk | | United States | EDA, design leaders, Intel Foundry, equipment ecosystem | Rebuilding advanced manufacturing scale | | Europe | Lithography, specialty equipment, automotive semiconductors | Limited leading-edge wafer capacity | | China | Large demand base and domestic manufacturing push | Export controls and tool access constraints | **Policy now shapes the supply chain directly.** Export controls, subsidies, trusted-fab programs, and domestic packaging initiatives all reflect the same conclusion: chip manufacturing capacity has become national infrastructure.