SK hynix Unveils Cooling-Integrated HBM - Businesskorea

SK Hynix unveiled its next-generation integrated cooling technology, iHBM, on May 26 to address the growing thermal challenges in the AI semiconductor era. By embedding cooling elements directly withi... Read original →

SK hynix’s integration of cooling directly into HBM marks a strategic pivot in memory competition—from stacking density to thermal efficiency. By targeting the D2D PHY hotspot with silicon-based ICE and leveraging MR-MUF WLP, it solves a critical bottleneck for NVIDIA’s next-gen AI GPUs while maintaining backward compatibility with existing SiP infrastructure. This move pressures Micron and Samsung to fast-track their own thermally enhanced HBM variants or risk losing share in the AI accelerator market. Geopolitically, if U.S. export controls expand to cover such advanced packaging IP, foundries in Taiwan, China and mainland China will accelerate domestic alternatives in thermal interface materials and wafer-level processes. Within 18 months, HBM4 standards may mandate integrated thermal pathways, effectively sidelining vendors without cooling-aware architectures from premium AI supply chains.