By Grace Kim

Hanmi Semiconductor has unveiled HBM4 (high-bandwidth memory, fourth generation) manufacturing equipment at SEMICON West, with the company explicitly targeting the U.S. market as its next growth engine.

The disclosure places the Korean equipment maker squarely in the race to supply tools for HBM4, the memory class now in demand for AI accelerators. Hanmi's presence at SEMICON West — the flagship U.S. semiconductor industry event — signals where the company sees its next orders coming from.

What does this change for Hanmi?

It widens the company's addressable market beyond its home-base customers in Korea. Showing HBM4-capable equipment on a U.S. stage is a direct pitch to American chipmakers and to memory producers building out advanced packaging capacity stateside.

HBM4 tools matter because the memory itself sits at the center of AI hardware. GPUs for large-model training and inference need stacked DRAM with fatter bandwidth than earlier generations delivered. Whoever supplies the assembly and packaging equipment for those stacks holds a chokepoint position in the AI supply chain — one reason equipment makers are racing to qualify HBM4-era systems.

Why the U.S. push?

American semiconductor policy and factory construction have pulled supplier ecosystems toward the U.S. in recent years. For a mid-sized Korean toolmaker like Hanmi, a U.S. footprint or U.S. customer wins mean diversification away from a small number of dominant domestic buyers.

That's the practical question here: what does a SEMICON West launch actually get Hanmi? Visibility with U.S. fabs, qualification opportunities, and a seat at the table as HBM4 capacity decisions get made — decisions that will be locked in over the coming equipment cycle.

The competitive picture

Hanmi already holds a recognized position in thermal compression bonding equipment used in HBM stack assembly. Extending that franchise to HBM4 is the natural move; the unveiling at SEMICON West confirms the company intends to defend and expand it as memory makers shift generations.

The stakes are real. HBM demand has surged with AI accelerator shipments, and each memory generation refresh tends to trigger a matching wave of equipment orders. Toolmakers that qualify early capture the order book; latecomers fight for scraps.

For now, the headline facts are simple. Hanmi showed HBM4 equipment. It showed it at SEMICON West. And it says the U.S. market is the target.

Watch for follow-through: customer qualifications, order announcements, and any stated timeline for HBM4 tool shipments. Those will tell you whether the U.S. push is a marketing gesture or a real revenue line.