Reports
AI-generated structured vendor updates
TSMC Adds Winbond to WoW 3D Stacking Memory Supply, Breaking DRAM Oligopoly
Winbond joins TSMC's Wafer-on-Wafer (WoW) 3D stacking advanced packaging supply chain, becoming a new DRAM wafer supplier alongside Samsung, SK Hynix, and Micron. This move reduces reliance on the three global DRAM giants and strengthens AI chip packaging supply resilience. Winbond provides DRAM wafers for vertical stacking with TSMC logic wafers, offering 8GB capacity and 256GB/s bandwidth via its CUBE solution.
Samsung and SK Hynix Announce $300B Investment to Dominate AI Memory and Foundry
Samsung and SK Hynix announce a 10-year, 1,000 trillion won investment plan to expand HBM4 production, improve 3nm GAA yield, and build new AI chip fabs. This aims to cement their HBM duopoly and close the gap with TSMC in advanced foundry, reshaping global AI infrastructure supply chain costs.
NVIDIA Rubin Delayed, Blackwell to Account for 71% of High-End GPU Shipments in 2026
NVIDIA Rubin GPU production target lowered from 2M to 1.5M units due to HBM4 memory validation delays. TrendForce data shows Blackwell share rising from 61% to 71% in 2026, consolidating dominance. Micron exits Rubin HBM4 supply chain, SK hynix to hold 70% share. Analysts maintain overweight ratings, viewing impact as limited. Rubin delay may extend SK hynix's HBM3E market dominance.
SK Hynix HBM4E Samples: 3nm Logic, 384GB/GPU, Igniting AI Memory Bandwidth Arms Race
SK Hynix has sampled its 12-layer HBM4E, featuring TSMC 3nm logic die and enhanced per-pin bandwidth, targeting Nvidia Rubin Ultra with 384GB per GPU. This marks the start of a sprint with Samsung in next-gen AI memory, where HBM BOM share has surged to 65-70%.