Micron’s vHBM Targets 2028 Amid Thermal Challenges

According to industry reports, Micron Technology is developing next-generation vertical high-bandwidth memory (vHBM), which stacks DRAM directly above processors to shorten data paths and increase bandwidth for AI inference workloads.

Micron’s technology roadmap outlines HBM development through HBM6 by 2030, with vHBM targeted for mass production in 2028. The architecture could improve data transfer efficiency as AI systems demand greater memory bandwidth and capacity.

However, placing memory directly above processors creates thermal management challenges that could limit adoption. Analysts expect vHBM to complement traditional HBM rather than replace it entirely, with system designers balancing performance, cooling requirements, power consumption, and packaging complexity.

Micron is also developing vertical Edge Inference Memory (vEIM), which stacks low-power LPDDR memory above logic chips for edge AI applications. Its first-generation design targets 2 TB/s bandwidth and energy consumption below 1 picojoule per bit, with mass production planned for 2028.

In the near term, Micron’s earnings growth is expected to rely mainly on HBM, server DRAM, and enterprise SSDs amid tight memory supply. While vHBM offers a longer-term growth opportunity, its commercial success will depend on overcoming thermal and manufacturing challenges.