Taiwan snubs California, invests $165 billion in Arizona for superchips

Six Factories Will Make AI Chips on US Soil

A massive chunk of Arizona desert is becoming the most important piece of real estate in the global tech race.

Taiwan’s TSMC is building a semiconductor empire in Phoenix that will produce the chips powering everything from iPhones to AI supercomputers.

The numbers are staggering, the timeline is accelerating, and the first American-made AI chips are already rolling off the line.

What started as a single factory announcement five years ago has turned into something much bigger.

From $12 Billion to $165 Billion

In 2020, TSMC announced a $12 billion fab in Phoenix intended to produce chips at 20,000 wafers per month. By December 2022, the company tripled its commitment to $40 billion and added a second factory.

In March 2025, planned investment jumped by another $100 billion to reach $165 billion, and the number of fabs increased from three to six.

TSMC CEO C. C. Wei announced the expansion would include three new fabrication plants, two advanced packaging facilities, and a major R&D center. The project now spans 1,100 acres of land in north Phoenix.

The Largest Greenfield Investment in History

The Arizona complex is officially the largest single foreign direct investment in a greenfield project in US history.

CEO C. C. Wei announced that at completion, TSMC Arizona would have a “gigafab” cluster composed of six fabs, two advanced packaging facilities, and a research and development center.

The site will eventually host six advanced wafer fabs forming a comprehensive ecosystem for cutting-edge chip production.

For context, the entire project dwarfs most American infrastructure investments and rivals the scale of major national initiatives.

First US-Made AI Chips Roll Off

In October 2025, NVIDIA founder Jensen Huang visited TSMC’s Phoenix facility to announce the first completed US-made wafer that will become Blackwell AI chips. “This is a historic moment.

It’s the very first time in recent American history that the single most important chip is being manufactured here in the United States,” Huang told several hundred TSMC employees.

The Blackwell wafer entered volume production, strengthening domestic supply chains for artificial intelligence technology. These are the same chips powering the AI revolution at data centers worldwide.

Why America Lost Its Chip Edge

The United States invented semiconductors and once produced nearly 40% of the world’s chips. Today, the US makes closer to 10% and produces none of the most advanced chips.

Taiwan now manufactures 60% of all semiconductors and more than 90% of the most advanced chips.

US policymakers grew worried that the country would lose access to semiconductors during any conflict with China over Taiwan. That vulnerability pushed Washington to act with unprecedented industrial policy.

The CHIPS Act Bet Paid Off

The US Department of Commerce awarded TSMC Arizona up to $6. 6 billion in direct funding under the CHIPS and Science Act.

In addition to the direct funding, the CHIPS Program Office made approximately $5 billion in loans available to TSMC Arizona.

The finalized agreement in late 2024 proved to be a catalyst for broader investment, with TSMC increasing its total commitment to a staggering $165 billion.

The law also provides a 25% investment tax credit for semiconductor manufacturing equipment, sweetening the deal further.

12,000 Permanent Jobs Coming

TSMC’s $165 billion investment is expected to directly create 12,000 jobs once all sites are completed and fully operational.

The additional $100 billion expansion announced in March will create 40,000 construction jobs over the next four years.

Senator Mark Kelly noted the project will put tens of thousands of Arizonans to work in good-paying jobs that do not require a four-year degree.

Local universities are building workforce pipelines specifically for the semiconductor industry.

Apple and NVIDIA Secure Their Chips

Apple has already secured the lion’s share of Phase 1 capacity, using Arizona-made 4nm chips for its latest A-series and M-series processors.

NVIDIA Blackwell chips have started production at TSMC’s chip plants in Phoenix.

AMD, Broadcom, and Qualcomm have also secured capacity, ensuring they have a more secure and diversified supply chain for their most critical components.

For these companies, having chips made on American soil reduces both political and logistical risks.

A $7 Billion City Rises Next Door

Developers are building Halo Vista, a 2,300-acre mixed-use development forming a literal halo around TSMC’s Phoenix campus.

The $7 billion project will be a walkable community with about 12 million square feet of industrial space, 3.5 million square feet of technology and office space, and nearly 9,000 residential units.

A Costco, Courtyard Marriott, and Residence Inn have already signed on. When fully developed, the community is expected to support 62,000 jobs.

Amkor Completes the Puzzle

Amkor Technology broke ground on a $7 billion semiconductor packaging and test campus in Peoria, Arizona, with construction expected to be completed in mid-2027 and production beginning in early 2028.

The facility will be the first US-based high-volume advanced packaging facility.

The campus will complement TSMC’s front-end wafer fabrication for full end-to-end semiconductor manufacturing.

By 2027, chips can be designed, fabricated, and packaged within a 50-mile radius in the United States for the first time.

The Yield That Silenced Critics

TSMC’s Arizona Phase 1 facility achieved a 4nm yield rate of 92%, approximately four percentage points higher than yields at equivalent facilities in Taiwan.

Industry experts noted this effectively debunked the myth that high-end semiconductor manufacturing is culturally or geographically tethered to East Asia.

The success came from implementing digital twin manufacturing technology, where a virtual model of the fab allows engineers to simulate and optimize processes before execution.

Early skeptics who doubted American workers could match Taiwanese precision have gone quiet.

30% of Advanced Chips by Decade’s End

TSMC’s CEO stated that the completion of the gigafab cluster would account for 30% of TSMC’s 2-nanometer and more advanced capacity semiconductor production within Arizona.

Production for 3nm chips is targeted for 2028 and 2nm chips for 2029.

By the time Phase 3 is operational in late 2027, Arizona will be at the absolute bleeding edge of semiconductor design.

The desert outside Phoenix is becoming one of the most strategically important manufacturing zones on Earth, and the chips made there will power the next generation of AI, smartphones, and military systems.

Visiting Phoenix, Arizona

Phoenix sits at the center of America’s semiconductor revival, with TSMC’s massive facility transforming the north valley.

The city offers year-round sunshine, world-class golf courses, and easy access to natural wonders like the Grand Canyon and Sedona.

Downtown Phoenix features a growing arts district, professional sports venues, and the Desert Botanical Garden. Visitors can explore the Musical Instrument Museum or hike Camelback Mountain for panoramic valley views.

Phoenix Sky Harbor International Airport serves as a major hub with direct flights from most US cities.

This article was created with AI assistance and human editing.

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