Amkor Technology
The US-headquartered OSAT building advanced packaging in Arizona.
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Amkor is the second-largest outsourced packaging house and is building a $2B+ advanced-packaging campus in Peoria, Arizona — the missing back-end piece of the US chip-manufacturing push, sited near TSMC's fabs with Apple and NVIDIA flagged as anchor demand.
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Record reviewed as of 2026-01-15 — see Methodology.