SK hynix Orders HBM4 Test Equipment From Korean Suppliers

DigiTimes reports that Digital Frontier and UniTest won four HBM4 wafer-tester orders from SK hynix for 2026, with the contracts valued at a combined KRW247.84 billion, or about $172 million. The orders broaden the role of Korean vendors in an advanced memory-testing market where Advantest has been a major incumbent. For RamTrend, the item is a supply-chain signal rather than a spot-pricing event. HBM4 needs specialized test capacity before it can scale reliably, so confirmed equipment spending points to continued investment behind AI memory production. It does not by itself loosen near-term HBM supply, but it supports the view that SK hynix is preparing for strong demand and larger HBM4 volumes in the 2026 cycle.