TSMC is apparently considering getting into the RAM business at the request of Nvidia. - The Verge

This isn't a sourcing problem — it's a structural fracture in the semiconductor value chain. For two decades, DRAM manufacturing and logic foundry operated as parallel universes. But CoWoS packaging has already welded HBM onto TSMC's production lines; extending one step upstream into DRAM wafer fabrication collapses the last moat protecting the IDM model in AI compute. For SK Hynix, this is the most dangerous signal in years. Its HBM3E pricing power rests on an oligopoly where Nvidia has limited alternatives. TSMC's entry transforms Nvidia's leverage from "choosing a supplier" to "dictating specifications." Samsung will almost certainly accelerate HBM4 mass production to lock in customers via generational lead, while Micron faces a 20-30% price compression to defend share. On compliance, any sub-12nm DRAM node triggers heightened scrutiny under US export controls, and Taiwan, China's capacity expansion timeline remains exposed to geopolitical friction. The 12-24 month tail effect: DRAM's "cyclical commodity" thesis is permanently disrupted. AI structural demand reclassifies memory from a bulk input to a first-class citizen in the compute architecture.