TSMC, the world's dominant chip manufacturer, and Amkor Technology, a leading semiconductor packaging firm, have signed a 10-year partnership to expand advanced packaging capacity in Arizona, the companies announced.
The deal is designed to accelerate advanced packaging operations inside the United States — a step that, according to gasworld.com, "closes a domestic supply chain gap" for advanced semiconductor production. Arizona is already home to TSMC's expanding U.S. fabrication facilities, making it a natural hub for this downstream manufacturing step.
Packaging is a critical but often overlooked part of chip production. After a chip is fabricated, it must be cut, tested, and enclosed in protective housing before it can be installed in a device. Advanced packaging goes further, stacking or connecting multiple chips together to boost performance — a technique central to modern AI processors and high-end consumer electronics.
Markets responded positively to the news: according to Seeking Alpha, Amkor's stock rose following the announcement of the Taiwan Semi deal.
The partnership reflects a broader industry push to build out the full semiconductor supply chain on U.S. soil — not just fabrication, but the finishing steps that turn raw silicon into working components ready for assembly into products like smartphones, servers, and AI hardware. With chip supply chains now firmly in the crosshairs of trade and national security policy, deals like this one signal that the U.S. semiconductor ecosystem is moving beyond just building fabs and investing in end-to-end domestic capability.