TSMC Weighs 3D DRAM Push for Nvidia as Memory Crunch Bites
3 min readTSMC is reportedly weighing a move into memory chips. According to a report in The Information cited by Investing.com, the world’s largest contract chipmaker recently began formulating plans to produce vertically stacked 3D DRAM at the request of Nvidia, its most important customer. TSMC’s US-listed shares jumped 7.7 percent in early trading on Friday as the TSMC 3D DRAM report circulated, a sharp reversal after the stock opened limit down in Taipei earlier in the day.
Background: a memory bottleneck
TSMC built its business on logic chips: the processors, GPUs and mobile chips designed by Nvidia, Apple and AMD. Memory has been the domain of three suppliers, Samsung Electronics, SK hynix and Micron. That split is now under strain. A persistent shortage of high-end memory has pushed AI hardware costs sharply higher, and Apple raised prices across its lineup earlier this year after absorbing higher memory costs. TSMC already makes the base logic dies for SK hynix’s next-generation high-bandwidth memory under a 2024 agreement, so it is not a stranger to the memory supply chain.
What the TSMC 3D DRAM report says
Two people with direct knowledge told The Information that TSMC is examining two routes: building dedicated memory fabs, or acquiring an existing site and retooling it. There is precedent for the second path. In March, Micron agreed to buy a Taiwan facility from Powerchip Semiconductor Manufacturing Corp. for $1.8 billion to retrofit it for high-end memory.
The effort is reportedly led by Hsu Kuo-chin, a TSMC vice president who runs its advanced packaging operations and previously oversaw Micron’s regional footprint. TSMC holds patents around vertical DRAM, though the report notes that turning lab designs into defect-free volume production is a hard problem. Neither TSMC nor Nvidia commented, and no capacities, timelines or budgets were disclosed. Yahoo Finance carried the Investing.com write-up.
Why it matters
Nvidia and Apple are reportedly looking for alternative memory suppliers, and a TSMC entry would give them a partner they already trust at the leading edge. For Samsung and SK hynix, the two Korean giants that dominate high-bandwidth memory, a new competitor with TSMC’s process expertise and packaging muscle would be the most serious threat in years. Memory is also notoriously cyclical, with boom-and-bust supply swings that TSMC has largely avoided by sticking to logic. The questions to watch are whether TSMC confirms the plan, whether it buys or builds, and how quickly 3D DRAM can move from patents to production.