TSMC considers making 3D DRAM chips at Nvidia’s request

Why Nvidia wants TSMC in the memory game

Nvidia wants TSMC to start making 3D DRAM memory chips, and TSMC is now weighing the request. These chips stack memory cells vertically, a design that squeezes more capacity into the same space—a critical advantage for AI workloads that devour data.

How TSMC could break into the memory market

Hsu Kuo-chin, the TSMC vice president who oversees advanced packaging, is leading the internal assessment. The company has not committed to a timeline or a factory, but it is already studying two options: constructing a new plant in Taiwan’s Central Taiwan Science Park or converting an existing one. Either path would pit TSMC against Samsung, SK Hynix, and Micron, the three companies that have dominated memory production for decades.

Demand is swallowing supply whole. Micron, the largest U.S. memory maker, expects shortages to stretch into 2028, pushing prices higher. Apple raised prices on some Macs and iPads in June, citing soaring memory costs, while Elon Musk is planning a $55 billion chip plant to reduce his dependence on Micron.

Nvidia’s backup plan for memory supplies

Nvidia’s strategy extends beyond 3D DRAM. In October, it asked Samsung, SK Hynix, and Micron to manufacture the base layers of its next-generation high-bandwidth memory using TSMC’s 3nm process. The request acts as a safety net: if Samsung or SK Hynix stumble, TSMC’s advanced node could keep Nvidia’s GPUs flowing.

The move also strengthens Nvidia’s hand in price negotiations. "If you can credibly threaten to bring a third supplier into the game, you don’t have to accept whatever Samsung or SK Hynix quote," a semiconductor analyst told The Next Web.

The stakes for TSMC and the AI industry

TSMC’s internal review is still underway, but the broader industry is already moving. AI data centers are consuming DRAM at record rates, and regulators in multiple countries are scrutinizing chip consolidation. Meanwhile, OpenAI’s abrupt policy shifts on custom silicon show how quickly supply-chain assumptions can collapse.

For TSMC, the choice is clear. Staying out of memory keeps costs low but risks losing lucrative orders if shortages drag on. Entering the market costs billions upfront but could secure demand from Nvidia and others for years.

What this means

Lazyfounder analysis — our interpretation, not reported fact.

TSMC’s potential move into 3D DRAM would give Nvidia and other AI chipmakers a critical second source for memory, breaking the trio of Samsung, SK Hynix, and Micron that has controlled the market for years.

Key takeaways

• TSMC’s entry could force Samsung, SK Hynix, and Micron to accelerate innovation or lower prices to retain customers.
• Nvidia’s request for custom HBM built on TSMC’s 3nm process could reduce its dependence on Samsung and SK Hynix for high-bandwidth memory.
• The shift reflects a wider industry panic: companies are racing to diversify suppliers before AI demand outstrips memory production.
• Even if TSMC never ships a single 3D DRAM chip, its review alone signals how seriously the memory bottleneck threatens AI growth.

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