TSMC is accelerating the construction of its second Arizona manufacturing site. Mass production of 3-nanometer chips is now expected to begin in the second half of 2027. This timeline represents a significant pull-in from previous schedules to expand U.S. advanced manufacturing.

Major American technology firms have reportedly reserved all planned capacity at TSMC’s U.S. facilities. Key customers including Apple, NVIDIA, AMD, and Qualcomm have booked the upcoming production. Demand extends to a potential fourth fab as companies seek to secure supply chains against geopolitical risks.

TSMC projects that overseas fabs will account for 20% of its total capacity by 2028. These developments aim to strengthen the domestic semiconductor ecosystem in the United States. The expansion impacts the long-term outlook for major tech ETFs including VGT, XLK, and QQQ.