A structural shortage has emerged in the market for older 2D NAND flash memory, causing prices to nearly triple.
This situation stems from a major shift in the semiconductor industry, where leading manufacturers are redirecting their resources away from legacy technologies. Simply put, the world's biggest memory makers, like Samsung and SK hynix, have largely stopped producing 2D NAND. This type of memory, while less advanced, is a critical component in many everyday products, including cars, industrial machinery, and low-cost consumer electronics. They've made this decision to focus on a more profitable and technologically advanced product: high-density 3D NAND.
So, what's driving this change? The primary cause is the explosive growth of Artificial Intelligence. AI servers and sophisticated devices require vast amounts of fast, high-capacity storage, a demand that only cutting-edge 3D NAND can meet. For instance, SK hynix announced the mass production of its 321-layer 3D NAND, a clear signal of where the industry's priorities lie. As companies pour capital, factory space, and engineering talent into these advanced chips, the older 2D production lines are being shut down or scrapped entirely.
This creates a significant problem because restarting 2D NAND production isn't easy. A recent exploration by foundry UMC revealed three major obstacles: a shortage of engineers with experience in legacy processes, the loss of specific manufacturing know-how (IP), and the fact that much of the necessary equipment has already been decommissioned. This means the supply gap cannot be filled quickly, turning what might have been a temporary price spike into a long-term structural shortage.
The market data confirms the severity of the situation. According to research firm TrendForce, contract prices for NAND flash saw staggering quarterly increases, compounding to a more than 3x rise from late 2025 to mid-2026. This scarcity has created a seller's market, with reports of some buyers having to prepay for orders three years in advance just to secure a supply.
Ultimately, the surge in 2D NAND prices is not an isolated event but a direct consequence of the AI revolution reshaping the entire semiconductor landscape. The industry is bifurcating, with intense focus on the highest-end chips for AI and a painful supply squeeze for the legacy components that still run much of our world.
- Glossary:
- 2D NAND: An older type of flash memory where storage cells are built in a single horizontal layer. It is less dense but reliable and cost-effective for lower-capacity applications.
- 3D NAND: A modern flash memory architecture where cells are stacked vertically in multiple layers, allowing for much higher storage densities and performance.
- eMMC (embedded MultiMediaCard): A type of storage commonly used in consumer electronics like smartphones, tablets, and automotive systems, often based on 2D NAND for lower-capacity needs.