TSMC has fabricated some of Nvidia’s first GB300 AI GPUs at its Fab 21 plant in Arizona on a 4-nanometer process, Taiwan’s Commercial Times reported, as covered by Wccftech on July 27, 2026.
What it means
- The Arizona-made wafers still have to be shipped to Taiwan for CoWoS advanced packaging before system makers can use them in AI servers.
- TSMC plans to spend $265 billion in the USA, including two advanced packaging plants in Arizona, Wccftech reported.
- Once packaging is done in the USA, more of the chip-making process could stay in the country.
Why it matters for Made in USA
A “Made in USA” label on a chip can hide where key steps happen. Here the silicon is fabricated in Arizona, but a critical step is still done in Taiwan. For buyers and policymakers, the full supply chain matters, not just the wafer fab. Related: Micron’s most advanced USA-made memory.
FAQ
Where are Nvidia GB300 chips being made in the USA?
At TSMC’s Fab 21 in Arizona, which has fabricated some of the first GB300 wafers.
Are they fully made in the USA?
No. The wafers still go to Taiwan for CoWoS advanced packaging.
Will packaging move to the USA?
TSMC plans two advanced packaging plants in Arizona as part of its $265 billion USA investment.
Source & credit
Originally reported by Wccftech (Rohail Saleem), July 27, 2026, citing Taiwan’s Commercial Times: “NVIDIA’s First Made-In-America GB300 GPUs Roll Off TSMC’s Arizona-Based Fab 21, But Still Fly To Taiwan for Packaging”