KYEC approves US$1.4 billion US plant to expand chip testing capacity

KYEC’s $1.4B U.S. test facility isn’t just chasing CHIPS Act subsidies—it reveals backend packaging and testing as the semiconductor supply chain’s weakest link. This move pressures equipment vendors to localize test platforms and forces OSAT rivals to reassess Mexico or Vietnam expansions to hedge against U.S.-centric risk. Compliance overhead will surge due to CFIUS scrutiny and export controls, especially for advanced packaging co-testing. Competitors like ASE may accelerate joint ventures with U.S. IDMs to bypass regulatory walls. Over the next 18 months, while U.S. test capacity nominally grows, yield ramp delays and talent shortages will constrain output—ironically reinforcing Taiwan-based firms’ pricing leverage in high-end testing.