ChangXin Memory Technologies

China DRAM HBM3E memory chips manufacturing

CN$8.6B deal valueest. 2016cxmt.com (opens cxmt.com)Checked 11 Oct

The brief

Analyst view
  • Shifting 20% of DRAM output to HBM3E: 8-high in 2026, 12-high by late 2026, scaling to 40,000 wpm by 2028.
  • Plans 3–4M HBM3E stacks in 2027 to supply China's AI GPU demand from T-Head, Cambricon.
  • Total DRAM capacity reaches 350,000 wpm by end 2026, narrowing gap with Samsung, SK Hynix, Micron.

Technical approach

As reported
HBM3E Stacking

High-bandwidth memory for AI

HBM3E stacks 8 or 12 DRAM dies vertically with TSVs and micro-bumps for high data rates.

DRAM Leadership

DDR5, LPDDR5X volume

CXMT is the only Chinese vendor at scale in modern DRAM, competing with Samsung, SK Hynix, Micron.

Fab Buildout

Capacity scaling

New fabs under construction to scale from 320k to 420k wpm by 2027 for DRAM and HBM.

Primer