Overview
- SK hynix announced iHBM on Tuesday, saying it places silicon-based Integrated Cooling Elements (ICEs) into the Die-to-Die Physical Layer to pull heat away from the hottest interface between HBM and processors.
- The company claims iHBM lowers thermal resistance by about 30 percent, which it says will help chips maintain higher speeds and stability under heavy AI and HPC loads.
- SK hynix says iHBM is compatible with its Wafer Level Packaging process built on MR-MUF technology, which the company presents as a path to large-scale production with minimal customer redesign.
- The firm plans to apply iHBM starting with next-generation HBM products such as HBM5, a generation analysts expect around 2029–2030 when the industry also moves toward hybrid bonding.
- Investors reacted positively, with SK hynix stock rising more than 6 percent after the announcement, but the company has not disclosed a mass-production schedule or confirmed any customer commitments.