SK hynix has unveiled iHBM, a thermal solution that embeds integrated cooling elements directly inside high-bandwidth memory packages. The innovation tackles heat management as AI processing demands faster, more densely stacked HBM chips. SK hynix positions this as critical for next-generation products including HBM5.

Traditional cooling methods transfer heat indirectly through the core die. iHBM places cooling elements precisely where thermal concentration peaks—in the Die-to-Die Physical Layer connecting memory to GPUs. This approach creates an additional heat dissipation path, reducing thermal resistance by 30% and enabling stable operation under high-temperature, high-pressure conditions.

The company's Wafer Level Packaging process, built on proven Mass Reflow Molded Underfill technology, enables high-volume production. The solution also offers compatibility with existing System-in-Package architectures, allowing customers to adopt the technology with minimal design adjustments.

"iHBM is an optimal solution for thermal management, combining our memory design capabilities with advanced packaging technology," said Kangwook Lee, Senior Vice President and Head of PKG Development at SK hynix. The company aims to cement its AI memory leadership by meeting heat management standards required in high-density, high-bandwidth environments.