With demand for artificial intelligence continuing to exceed manufacturing capacity, Taiwan Semiconductor Manufacturing Co. announced on July 16 a $100 million expansion of its Arizona campus, adding four advanced semiconductor manufacturing plants and related distribution capacity.
The announcement brings the chipmaker’s planned U.S. investment to $265 billion and expands its Phoenix-area campus totals to 10 manufacturing plants, two advanced packaging facilities and a research and development center.
The new facilities will manufacture 2-nanometer and more advanced semiconductors that power AI accelerators, cloud computing infrastructure and other high-performance computing applications while strengthening the domestic semiconductor supply chain and supporting long-term demand from US customers.
“With strong collaboration and support from our major U.S. customers and U.S. federal, state and municipal governments, we would like to announce an additional $100 billion investment in Arizona,” said Chairman and CEO CC Wei during the company’s second quarter earnings call on July 13.
The expansion will build “several more semiconductor logic wafer manufacturing plants for 2-nanometer and below technologies, as well as advanced packaging manufacturers, to support multi-year strong demand from our major US customers,” he added.
The expansion also expands the company’s advanced packaging footprint in Arizona, an increasingly important part of semiconductor manufacturing that integrates multiple chips into a single package for AI and high-performance computing systems. Executives indicated that both front-end wafer manufacturing and advanced packaging capacity are being expanded to meet customer demand.
Demand for AI drives increased construction
Instead of attributing the expansion primarily to federal industrial policy, they repeatedly cited sustained AI-driven demand as a catalyst for accelerating construction.
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“The AI megatrend continues to drive the need for more and more computation,” Wei said. “Our conviction in the multi-year AI megatrend remains very high.”
Reflecting this view, Taiwan Semiconductor simultaneously raised its 2026 capital spending plan to between $60 billion and $64 billion, up from previous guidance, saying the higher investment levels are directly related to future growth opportunities. The company said it doesn’t anticipate equipment bottlenecks that would limit expansion because it works with suppliers years in advance to prepare manufacturing capacity.
Wei also said the company is planning capacity ahead of the broader AI construction boom, monitoring the pace of data center development before committing to additional manufacturing capacity.
“We’re checking the progress of the AI data centers, the building, the location, the demand, the racks,” he said, adding that the company tracks projects to make sure chips are delivered to operational facilities instead of sitting in inventory.
Hours linked to market forces
While analysts repeatedly pressed executives for a construction schedule, Wei declined to commit to firm completion dates, saying customer demand and market conditions will dictate future phases.
A heavy-duty crane works on the construction of one of TSMC’s semiconductor manufacturing plants at the company’s Phoenix campus. The latest $100 billion expansion will add four more advanced factories, expanding one of the largest industrial construction programs in North America.
Image courtesy of TSMC
“We have a plan,” Wei said. “But…the schedule most of the time [depends] on the market situation and our customers’ demand… We are trying to speed it up as fast as possible.”
Asked how many facilities the additional investment would build, Wei said there would be “probably four or more additional fabs,” confirming the scale of the next phase of expansion.
The announcement expands a construction program that has grown steadily since Taiwan Semiconductor selected Phoenix in 2020 for its first advanced semiconductor manufacturing site in the United States. The investment initially announced at $12 billion has been expanded several times before the latest commitment.
The first Arizona factory entered high-volume production in late 2024 using the company’s N4 process technology, the second factory has completed construction and is expected to begin 3-nanometer production in 2027, and the third factory began in 2025 for future 2-nanometer and A16 manufacturing. The campus covers more than 1,100 hectares.
Sandra Watson, president and CEO of the Arizona Commerce Authority, called the expansion “a pivotal moment for Arizona and the U.S. semiconductor industry – strengthening U.S. competitiveness and securing critical supply chains for decades to come.”
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Arizona has attracted more than 70 semiconductor expansions since 2020 totaling more than $314 billion in announced investment in manufacturing, advanced packaging, equipment suppliers, research and workforce development, state officials said.
Mayor of Phoenix Kate Gallego said the company’s investment “it reflects the tremendous momentum and capability we have in Phoenix.” The Arizona operations currently employ more than 3,500 people.
Once the announced facilities are complete, the chipmaker said about 30 percent of its global 2-nanometer and higher production capacity will be located in Arizona, creating one of the world’s largest concentrations of cutting-edge semiconductor production outside of Taiwan.
