Hanmi Semiconductor establishes US hub to support AI packaging customers

Hanmi's Silicon Valley subsidiary is not a sales outpost—it is a strategic embedding of TCB thermal compression bonding capability into the US AI silicon stack. When CoWoS and SoIC capacity, rather than logic wafers, becomes the binding constraint on AI compute density, an equipment vendor's service radius dictates a customer's time-to-capacity. Local presence compresses co-development cycles from quarters to weeks, translating into a 6-to-12-month production-release delta for Amkor and ASE's US fabs. On compliance, the CHIPS Act subsidy architecture is converting domestic supply chain from a bonus into a gating criterion. Hanmi gains preferential access to subsidized build-outs through a US legal entity, yet its TCB process parameters now sit under US jurisdiction—a non-trivial IP-exposure trade-off that few Korean equipment makers have fully priced in. Competitively, ASMPT already operates in the US, Besi is pressing hard on hybrid bonding, and Applied Materials can bundle packaging tools into its front-end ecosystem. Hanmi's move will ignite a three-way price-and-service arms race in US advanced packaging equipment. Over the next 12 to 24 months, US packaging capacity will shift from CoWoS replication to true 3D stacking. Equipment vendors without local service capability will lose the commercial window entirely in AI silicon's quarterly iteration cadence.