CONCEPT
Semiconductor Supply Chain
The geographically concentrated, extraordinarily complex production network—TSMC fabs, ASML lithography machines, rare earth processing—through which all frontier AI chips must pass.
The semiconductor supply chain names the multi-stage, globally distributed manufacturing system that transforms raw silicon into integrated circuits. For AI chips at the technological frontier—NVIDIA's H100, Google's TPUs, comparable devices—the chain exhibits extreme concentration. Taiwan Semiconductor Manufacturing Company fabricates essentially all leading-edge chips. ASML in the Netherlands manufactures the extreme ultraviolet lithography machines TSMC requires—fewer than 200 units exist worldwide. Rare earth elements critical for chip components concentrate in Chinese processing facilities. Neon gas, essential for lithography, historically sourced from Ukraine and Russia, was disrupted by war and only partially diversified. Each concentration point represents a potential single-point failure where geopolitical conflict, natural disaster, or industrial accident could constrain global AI capability. The chain's complexity—over 1,000 steps, three-month cycle time, $20-40 billion per new fab, four-year construction timeline—makes rapid supply expansion or geographic diversification structurally difficult.
In The You On AI Field Guide
Semiconductor manufacturing separates into design (architecture and logic), fabrication (physical production), and packaging/testing (assembly into usable form). NVIDIA dominates AI chip design with 80-90% market share; AMD competes distantly;