CXMT'S CHAIRMAN TOPS CHINA'S NEWCOMERS AT $13B ON AN UNVERIFIED CLAIM OF A 4F² DRAM BREAKTHROUGH

Summary from the TLDR Hardware newsletter

CXMT says its 4F² DRAM uses a vertical surrounding gate transistor and builds the memory cells and peripheral circuitry on separate wafers joined by hybrid bonding, which an analyst says could raise density by about 30%. Yields are unknown, and a server product is promised before year-end. The claim cut Samsung and SK Hynix about 13% in a day, even though CXMT holds roughly 10% of DRAM against Samsung's 38%.