TSMC is rapidly expanding its US footprint, and the company now plans to build a large “GigaFab” cluster in Arizona that mirrors the scale and output of its operations in Taiwan, as strong investments and rising demand from American clients continue to drive this shift. The move signals a major change in how global chip production will operate, especially as the US pushes for more domestic semiconductor manufacturing.
TSMC scales Arizona into a full fab network
The latest report shows that TSMC aims to build a total of twelve facilities in Arizona, including wafer fabs and advanced packaging plants, which brings its US operations closer to the integrated model it already runs in Hsinchu, Taiwan. This expansion goes beyond building factories, since TSMC is also bringing supply chain partners and technical expertise, ensuring that chip production can stay fully within the US once the network becomes operational.
DigiTimes reports that TSMC’s plans have already exceeded early expectations and now represent its largest overseas investment.
“Supply chain sources say that the plan for these 12 factories is TSMC’s largest overseas investment in history. It has transformed from an initial risk diversification base into an important extension base for advanced processes and packaging, becoming a key to the reconstruction of semiconductor manufacturing in the United States.”
Costs rise but demand keeps momentum strong
Building fabs in the US comes with higher costs related to labor, operations, and infrastructure, but TSMC continues to push forward as demand from US-based fabless companies remains strong, especially in AI and advanced computing sectors. Around 70 percent of TSMC’s customers are American firms, which creates constant pressure to secure production locally and avoid supply disruptions.
At the same time, government incentives and improved economic conditions have increased confidence in the Arizona project, allowing TSMC to expand its capital spending further while positioning itself as a central force in rebuilding semiconductor manufacturing capacity in the US.
