China's CXMT Enters Mass Production on 5th-Gen DRAM: What It Means for Samsung, SK Hynix, and Micron

China's CXMT just moved its 5th-generation DRAM into mass production, claiming at least 50% more chips per wafer despite U.S. export controls. But that headline number counts chips before defects are thrown out. Here's why yield decides whether this is a real threat to Samsung, SK Hynix, and Micron, and what the market's first reaction could signal.