SK hynix unveils self-cooling iHBM chips to combat AI overheating (www.koreatimes.co.kr)

SK hynix has announced its groundbreaking high bandwidth memory technology, iHBM, which incorporates an integrated cooling element within the HBM package to effectively combat heat generation in AI computing environments. As artificial intelligence workloads surge, heat management has become a critical challenge, especially at the die-to-die physical layer where data transfer occurs between HBM and AI processors. iHBM addresses this issue by embedding integrated cooling elements (ICE) that create a direct thermal path, significantly reducing thermal resistance by over 30% compared to conventional designs, thus maintaining stable operation under demanding conditions. The significance of iHBM lies in its potential to advance next-generation HBM development for high-performance computing and AI applications, particularly as heat concentration becomes a bottleneck in these areas. Designed for manufacturability, iHBM utilizes SK hynix’s Advanced Mass Reflow Molded Underfill-based wafer-level packaging process, ensuring compatibility with existing system-in-package environments. The initial rollout is planned for HBM5, with future products aimed at further elevating performance in AI data centers. This innovation not only enhances memory design but also positions SK hynix as a leader in AI memory solutions.