Taiwan Semiconductor Manufacturing Company (TSMC) and Amkor Technology, Inc. signed a 10-year agreement to expand advanced semiconductor packaging capacity in Arizona [1].
The partnership aims to localize a larger portion of the chip supply chain on U.S. soil. By integrating packaging capabilities closer to manufacturing, the companies intend to accelerate the delivery of advanced semiconductors for American customers [1], [3].
As part of the deal, the companies will construct a new facility with an investment of US$7 billion [2]. The plant will be located near TSMC's existing manufacturing base in Phoenix, creating a concentrated hub for chip production, and final assembly [2], [1].
Advanced packaging is a critical step in semiconductor production where multiple chips are bundled together to improve performance and energy efficiency. This move reduces the reliance on overseas facilities for the final stages of the chipmaking process [3].
Market reactions to the announcement were positive, though reports on the exact scale varied. Shares of Amkor rose 7.09% intraday following the news [4], while other reports indicated the stock closed up about 3% on Tuesday [5].
The agreement was announced on June 17, 2026 [1], [4]. It marks a significant expansion of the U.S. semiconductor ecosystem as the country seeks to secure its domestic technology infrastructure [3].
“The companies signed a 10-year agreement to expand advanced semiconductor packaging capacity in Arizona.”
This partnership addresses a critical bottleneck in the U.S. semiconductor strategy. While the U.S. has focused heavily on funding the 'fab' stage of chip manufacturing, the 'packaging' stage has remained largely concentrated in Asia. By co-locating a US$7 billion packaging plant next to TSMC's Phoenix operations, the companies are creating a vertically integrated corridor that reduces geopolitical risk and logistics delays for high-end AI and computing chips.
