CXMT Claims 4F² Memory Breakthrough That Could Rival Samsung's DRAM Technology

Chinese memory manufacturer CXMT declared it achieved a breakthrough in 4F² DRAM cell design that rivals like Samsung Electronics and SK Hynix have pursued for years, triggering sharp declines across global semiconductor stocks and stoking both excitement and skepticism about an unverified claim. The company plans to introduce server-grade DDR5 modules using the new architecture before year-end 2026, potentially giving it a two-year lead over competitors on a technology that promises to pack significantly more memory into the same physical space.