Chinese memory chipmaker CXMT’s claim of a technology breakthrough intensified concerns about competition for Samsung and SK Hynix. CXMT plans to introduce DDR5 server memory by the end of 2026 using a denser 4F² memory cell design. Bloomberg described the breakthrough claim as unsubstantiated. The planned product targets conventional server memory, rather than the high bandwidth memory used in AI accelerators.
The selling spread across Asian technology shares after the Philadelphia Semiconductor Index fell 2.66% on Wall Street, with concerns about AI financing and inflation adding pressure. SoftBank sank 8% in Japan, while the Nikkei fell about 2.6%.