Apple mobile processors are now made in America by TSMC
Apple’s A16 mobile processors are now being fabricated on TSMC’s 4–5 nm process at a new fab in Arizona, marking the first time cutting-edge iPhone chips are produced in volume on U.S. soil. Commenters see this as a strategic win for U.S. industrial policy and national security, reducing sole dependence on Taiwan and China-linked supply chains, but note that the node is a generation behind TSMC’s most advanced processes and heavily subsidized by the CHIPS Act. The conversation widens to whether such onshoring is economically efficient, how it affects Taiwan’s geopolitical leverage, and if the U.S. can realistically rebuild a broader manufacturing ecosystem beyond a few flagship fabs.
What’s actually being manufactured
- TSMC’s Arizona fab is producing some Apple A16 SoCs on its N4P (4/5nm-class) process.
- These are for current mid‑tier iPhones (15/15 Plus); cutting‑edge 3nm and future 2nm nodes remain in Taiwan.
- Volume is unclear; many expect Arizona to handle a fraction of total A16 demand and to be 1‑2 generations behind Taiwan long term.
Apple product and “Apple Intelligence” angle
- Speculation that a future iPhone SE will use an A18 with more RAM so it can run Apple Intelligence, matching Apple’s stated requirement of A17 Pro/A18/M‑series.
- Some note Apple is quietly shipping non‑“Apple Intelligence” AI features (e.g., better Photos search) to older devices, suggesting a split between headline AI branding and broader ML improvements.
National security & geopolitics
- Many see onshoring as primarily a national security move: hedge against a Taiwan crisis, reduce dependence on a single, vulnerable island.
- Debate on whether this weakens Taiwan’s “silicon shield” and US incentive to defend it, or instead increases overall deterrence by adding redundancy.
- Some argue China’s strategic interest in Taiwan is more about sea lanes and politics than chips alone.
Industrial policy, CHIPS Act, and subsidies
- Strong disagreement over whether CHIPS‑style subsidies are needed resilience or corporate welfare.
- One camp: government support for fabs is justified like other security‑critical sectors; comparative advantage must be tempered by resilience.
- Other camp: this is protectionism that misallocates capital; they’d rather see broad tax reform or direct transfers than firm‑specific subsidies.
State of US manufacturing
- Several emphasize US manufacturing output (in value) has grown while jobs and some subsectors (steel, shipbuilding, consumer goods) shrank or moved up the value chain.
- Others counter that headline numbers are skewed by semiconductors and hedonic adjustments; practical capabilities in “everything else” (machine tools, plastics, discrete components) have eroded.
- Long back‑and‑forth on comparative advantage vs path‑dependent capabilities and the loss of mid‑skill, locally trained manufacturing talent.
TSMC, ASML, and knowledge transfer
- Clarification that ASML supplies EUV tools, while TSMC’s value is process integration, yield tuning, and PDKs—ASML alone can’t “run a fab.”
- Some doubt there is formal tech transfer to US firms; Arizona remains a TSMC‑run facility, with key know‑how still centered in Taiwan.
- Work‑culture differences (24/7 responsiveness in Taiwan vs US expectations) and Arizona labor/permits are cited as real but apparently manageable challenges.
Costs, jobs, and consumers
- Widespread assumption that US‑built chips are ~50% more expensive, partly offset by subsidies; precise cost delta remains unclear.
- Concern that higher costs may push phone prices up, while others note Apple’s margins give it room to absorb some increase.
- Many stress that fabs alone don’t rebuild the broader hardware ecosystem (passives, connectors, PCB assembly); the US still relies heavily on Asian supply chains for “the galaxy of cheap parts” around a top‑end die.