Apple Deepens US Chip Supply Chain

TSMC's total investment in Arizona is set to exceed $65 billion, backed by up to $6.6 billion in direct funding and $5 billion in loans from the CHIPS and Science Act. This represents the largest foreign direct investment in Arizona's history and will culminate in a "gigafab" cluster of up to six fabrication plants. The production roadmap is aggressive and directly impacts future Apple Silicon. The first fab is already producing 4-nanometer chips, while the second fab will introduce 3nm and 2nm process technology, and the third will handle 2nm or more advanced processes by the end of the decade. A critical piece of this onshoring effort is advanced packaging. With Apple's support, Amkor Technology is building two packaging facilities near the TSMC site to create a domestic end-to-end workflow, from wafer dicing to final testing, with the first plant opening in 2027. This domestic supply chain extends beyond the Arizona fabs. Apple is encouraging suppliers like GlobalWafers, which now produces 300mm silicon wafers in Texas, to source locally. The partnership with Foxconn also includes a Houston facility for assembling AI servers and, eventually, the Mac Mini. Apple is the anchor customer for the new fabs, committing to purchase more than 100 million advanced chips from the Arizona facilities. As CEO Tim Cook stated, this move ensures these processors can be "proudly stamped Made In America," a first for Apple's advanced chips in nearly a decade. For future product lines, this integration is key. Apple is expected to be the first to adopt TSMC's 2nm process, upgrading to more complex Wafer-Level Multi-Chip Module (WMCM) packaging that better integrates processors with memory and I/O for devices like the iPhone 18 and future M-series chips.