Micron's HBM4 Ramp-Up Progressing Smoothly, HBM4E Mass Production Set for Next Year - thelec.net

Micron Technology's ramp-up of its sixth-generation high bandwidth memory (HBM4) is progressing smoothly, with mass production of the next-generation HBM4E expected to begin next year. At the J.P. Mor... Read original →

Micron’s accelerated HBM4 ramp signals a new phase in the AI memory arms race—defined by process-node convergence and ecosystem co-design. Technically, adopting EUV in its 1γ node while outsourcing base dies to TSMC marks a strategic pivot from vertical integration to heterogeneous assembly, forcing upgrades in TSV, packaging, and interposer tech. Geopolitically, reliance on Taiwan, China-based foundries boosts yield but heightens supply chain fragility amid tightening U.S. export controls on advanced computing. Competitively, Samsung and SK hynix racing with 1c-node samples risk losing customization windows as Micron locks in NVIDIA’s Rubin platform early. Over the next 12–24 months, HBM4E will become the de facto standard for AI training clusters, redirecting DRAM capex toward high-bandwidth tiers and cementing 1γ as the dominant node—by mid-2026, it will account for over half of Micron’s bit shipments, effectively sidelining laggards from the premium market.