SK Hynix weighs supplier price hikes as HBM boom lifts equipment makers

SK Hynix’s deliberation over equipment suppliers’ rare price hikes signals a power shift in Korea’s semiconductor supply chain, driven by the HBM boom. Technologically, HBM3E/HBM4 demands extreme precision in TSV and hybrid bonding, forcing equipment makers to invest heavily—costs inevitably passed upstream. Geopolitically, reliance on non-Korean tools heightens exposure to U.S.-led export controls, threatening supply continuity. Competitively, Samsung will likely accelerate in-house equipment development, while Micron may deepen ties with U.S. vendors like Applied Materials for allocation priority. Over the next 12–24 months, pricing leverage will concentrate among firms mastering atomic-layer deposition and nanoscale metrology. If Korea fails to build domestic alternatives by 2027, its HBM leadership could be undermined by systemic supply chain fragility.