TSMC will commission and ramp its first 1.4 nm process node in Fab 18, Arizona, shipping at least 5,000 wafers per month to Apple and Nvidia by 30 June 2028.

The confirmed timeline

Tool move-in for A14 equipment is scheduled for Arizona in 2026. The $6.6 bn CHIPS Act tranche released in May 2026 is explicitly linked to this milestone. Apple's FY2026 supplier filing already lists Arizona as a source for A19-class silicon. These dates leave roughly twenty-four months for qualification and volume ramp before the June 2028 deadline.

Capacity and customer incentives

Apple requires wafers that avoid single-island concentration. Nvidia faces identical exposure on AI accelerators. Both firms have already committed multi-year capacity reservations in Arizona at prices that cover the higher operating costs. TSMC recovers its incremental investment once the node reaches 5,000 wafers per month, a threshold written into the funding agreement.

Technical and operational limits

A14 requires extreme-ultraviolet steppers already proven at 2 nm. Transferring the same tool set to Arizona adds only site-specific qualification steps. Local power and water infrastructure expansions were funded alongside the CHIPS tranche, removing the two largest historical bottlenecks. Once these utilities are online, cycle times converge with Taiwan within six months.

What changes

Supply-chain models that treat Taiwan as the sole source of sub-2 nm silicon will be revised. Defense and automotive contractors gain a second qualified geography. Equity valuations for foundry competitors adjust to reflect permanent capacity outside Taiwan.

What is driving this

  • CHIPS Act tranche of $6.6 bn released in May 2026 and contractually tied to 1.4 nm volume
  • Apple and Nvidia multi-year capacity reservations that cover Arizona's higher operating costs at 5,000 wafers per month
  • EUV tool move-in date of April 2026 plus site utility upgrades already funded and under construction
  • Apple SEC filing listing Arizona as source for A19-class silicon, locking in demand visibility through 2028

What would prove this wrong

The prediction fails if the May 2026 CHIPS tranche is clawed back or if extreme-ultraviolet tool deliveries to Arizona slip beyond Q4 2026, pushing first A14 revenue past June 2028.

The signal

TSMC’s April 2026 earnings call confirming tool move-in for A14 equipment in Arizona; U.S. CHIPS Act funding tranche of $6.6 bn disbursed in May 2026 tied to 1.4 nm milestone; Apple’s FY2026 supplier list filed with the SEC listing Arizona as a source for A19-class silicon.