What is HBM3E Mass Production (Micron / SK hynix)?

HBM3E is an extended, higher-speed generation of High Bandwidth Memory that stacks multiple DRAM dies with through-silicon vias atop a base logic die to deliver greater memory bandwidth and capacity per package than standard HBM3, primarily for AI accelerators and high-performance computing chips. Mass production of HBM3E by memory makers such as Micron and SK hynix refers to the industrial-scale wafer fabrication, die-stacking, and packaging processes needed to supply these stacked memory modules at volume to chip customers.