Samsung eyes zHBM products from 2029 as heat remains key hurdle

Samsung's delayed zHBM rollout highlights that thermal management remains the core bottleneck in AI chip development. Upstream, this accelerates advancements in EUV lithography, advanced packaging, and thermal interface materials, especially in through-silicon via and heat dissipation technologies. Midstream foundries must reassess capacity allocation and partner timelines with AI vendors. Downstream, AI server manufacturers may shift toward in-house cooling solutions, reducing reliance on traditional HBM. From a policy perspective, ongoing global supply chain realignment and localization demands increase uncertainty as Samsung’s delayed delivery impacts overall supply stability. Competitors like NVIDIA and AMD may seize the opportunity to accelerate their own high-bandwidth memory innovations. Over the next 12–24 months, the delayed commercialization of zHBM will likely prompt industry-wide adoption of more robust cooling architectures, potentially spurring breakthroughs in alternative thermal management technologies.