SK Hynix (000660.KS) Stock: How Early HBM Investment Created Korea's Largest Company - Blockonomi

SK Hynix's early HBM (High Bandwidth Memory) technology investment has enabled it to become Korea's largest semiconductor company. This strategic decision highlights the critical value of technologica... Read original →

SK Hynix’s early HBM bet has triggered a structural reshaping of the memory stack: upstream TSV and CoWoS packaging capacities are scaling rapidly, while downstream GPU architects redesign memory subsystems. Despite temporary insulation from U.S.-led export controls, reliance on Japanese photoresists and Dutch EUV tools exposes latent supply chain fragility. With Samsung accelerating HBM3E ramp and Micron leveraging CHIPS Act subsidies, SK Hynix must convert its lead into exclusive AI chip ecosystem partnerships—particularly with NVIDIA and AMD. Within 18 months, HBM will shift from premium option to AI accelerator baseline, spiking demand for advanced packaging and test equipment, while locking out non-certified memory vendors from the high-performance tier permanently.