SK Hynix's HBM4 Achieves Over 70% Yield Rate, Mass Production Imminent, Poised for Nvidia's Next-Gen AI AcceleratorsSK Hynix has announced a significant breakthrough, achieving a test yield rate exceeding 70% for its sixth-generation 12-layer stacked High Bandwidth Memory (HBM4). This milestone signifies a robust foundation for mass production and positions SK Hynix favorably in the competitive memory market...