Micron forecasts HBM4E mass production ramp beginning 2H 2027; HBM4 12-layer version climbing production at 2x pace of HBM3E.

Micron reported record quarterly revenue, bolstered by continued demand for high-bandwidth memory components critical to AI infrastructure buildout. The company is scaling production of HBM4 12-layer configurations at twice the pace of its HBM3E predecessor, indicating accelerating adoption of next-generation memory technology.

The company projects mass production of HBM4E will begin in the second half of 2027, marking the next major inflection point in GPU memory availability. This timeline suggests a transition pathway from HBM4 through HBM4E as AI training workloads continue demanding higher memory bandwidth and capacity.

For the AI buildout, Micron's trajectory underscores tightening memory supply constraints being addressed through both incremental upgrades (HBM4 scaling) and planned generational improvements (HBM4E). The aggressive ramp of HBM4 production signals confidence in near-term demand, while the 2027 HBM4E target reflects industry expectations for sustained AI accelerator evolution and continued infrastructure investment.