TSMC Says US Fab Construction Costs 4 to 5 Times More as Arizona Investment Reaches $265 Billion

TSMC is significantly expanding its manufacturing presence in the United States despite acknowledging that constructing semiconductor facilities in Arizona remains substantially more expensive than building comparable fabs in Taiwan. The company has announced another $100 billion investment, raising its total planned United States commitment to $265 billion as demand for advanced artificial intelligence chips continues to accelerate.

Speaking with CNBC, TSMC Chief Financial Officer Wendell Huang said the construction of fab buildings and supporting facilities in the United States can cost between 4 and 5 times more than in Taiwan. The comparison relates primarily to construction infrastructure rather than the total cost of equipping and operating an entire semiconductor fab.

"The expansion overseas is more expensive. It takes 4 to 5 times more in constructing fabs in the US compared to Taiwan."
— Wendell Huang

Despite the cost difference, Huang said TSMC decided to expand further because customers are providing strong signals of structural demand extending across multiple years. The first Arizona fab is already producing chips with N4 technology, and its manufacturing yields are reportedly comparable to those achieved by the original production facility in Taiwan. Equipment installation for the second fab is expected to begin shortly, while construction of the third facility and preparation for a fourth fab and advanced packaging plant are already underway.

The second Arizona fab is expected to use N3 technology and begin production during the second half of 2027. The third phase will introduce N2 manufacturing, although the schedules for later facilities will depend on customer demand, construction capacity, available infrastructure, and market conditions.

TSMC Chairman and Chief Executive Officer C. C. Wei said the additional investment would support several more logic fabs using N2 and more advanced technologies, alongside advanced packaging capacity. Wei indicated that at least 4 additional facilities could be built under the latest expansion, bringing TSMC’s wider Arizona plan to 12 fabrication and packaging facilities plus a research and development center.

The expansion follows another record quarter for TSMC. Revenue reached $40.2 billion during Q2 2026, while gross margin increased to 67.7%. High performance computing represented 66% of quarterly revenue, reflecting the growing contribution of artificial intelligence accelerators, server processors, and advanced networking chips. TSMC also raised its 2026 capital expenditure plan to between $60 billion and $64 billion.

However, overseas manufacturing will continue to place pressure on profitability. TSMC expects new international fabs to reduce gross margin by approximately 2% to 3% during their early stages, widening to between 3% and 4% as the scale of overseas operations increases. Huang said profitability at each Arizona phase should improve as production matures, although it may not reach the same level as the company’s Taiwan facilities.

TSMC is not moving its most advanced development work away from Taiwan. Huang explained that new process technologies require close cooperation between research, development, and manufacturing teams during their initial production ramps. Leading nodes will therefore continue entering production first in Taiwan before being transferred overseas after manufacturing has stabilized. TSMC is simultaneously building 13 leading edge and advanced packaging facilities in Taiwan, including capacity connected to its future A14 generation.

TSMC is expanding 2 nm, 3 nm, and CoWoS capacity to address increasingly constrained artificial intelligence production, and also preparing its A14 manufacturing complex in Taiwan, reinforcing its strategy of keeping initial production for its most advanced technologies close to its core research and manufacturing ecosystem.

TSMC’s Arizona expansion is not primarily a cost reduction strategy. It is a supply chain and customer proximity strategy designed to give major United States chip companies access to advanced domestic production and packaging capacity.

The 4 to 5 times comparison highlights the difficulty of recreating Taiwan’s highly concentrated semiconductor ecosystem. Construction labor, specialist suppliers, permitting, infrastructure, and operational experience all affect the economics of a new fab. Government support and premium pricing may reduce some of that pressure, but TSMC has already acknowledged that overseas manufacturing will dilute margins.

The larger question is whether strategic resilience and guaranteed customer demand can justify permanently higher production costs. For NVIDIA, AMD, Apple, and other major customers, geographically diversified capacity may be worth paying more for, particularly as artificial intelligence chips become critical infrastructure.

Is TSMC’s $265 billion United States expansion worth the higher construction costs, or should the company prioritize greater capacity in Taiwan?