How Semiconductors Became Strategic Infrastructure

01From commodity to chokepoint

For decades, many buyers treated chips as another industrial input. That abstraction failed as leading-edge manufacturing concentrated among a handful of firms and regions. Governments discovered that a small physical footprint could contain an enormous share of economic and strategic risk.

• The foundry model and why leading-edge manufacturing concentrated
• One node, one region: the geography of advanced logic
• The pandemic shortage as the moment chips became policy

02What a fab actually demands

A leading-edge fab sits at the extreme of capital intensity, manufacturing precision, and utility demand. It is called a factory, but it operates more like a tightly coupled campus of cleanrooms, chemical systems, power infrastructure, and scientific instruments.

• Capex measured in tens of billions per site
• Ultra-pure water, ultra-clean power, and vibration tolerances measured in nanometers
• Campus power demand approaching gigawatt scale: a utility planning event in itself

03The industrial policy era

CHIPS-style programs in the United States, Europe, and Asia have turned fab siting into statecraft. Subsidies can move capital and influence geography. They cannot quickly manufacture experienced engineers, grid capacity, water systems, supplier networks, or time.

• What subsidies can buy, and what they cannot: talent, water, power, time
• The Arizona, Ohio, and Texas buildouts as live experiments
• The critics case: cost per job, and whether the leading edge can be transplanted

04The feedback loop

Fabs need large amounts of reliable power. The modern grid increasingly depends on semiconductors inside inverters, sensors, relays, and controls. AI requires both systems at once. Chip, compute, and power planning are becoming difficult to separate because each now constrains the other two.

• Semiconductors inside the grid: power electronics as grid infrastructure
• AI demand pulling on both fabs and generation simultaneously
• Why chip, compute, and power planning can no longer be separated

05What we are watching

The headline fab is only one layer of the system. Advanced packaging, utility coordination, workforce formation, and the transition from announcement to high-volume yield will determine how much strategic capacity actually exists.

• Advanced packaging: the quiet bottleneck behind the headline fabs
• Fab–utility co-planning agreements
• Whether announced capacity actually reaches high-volume production