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Samsung is Transforming Old 2D NAND Fabs Into Modern HBM4 Production

What happened

Samsung is converting its Hwaseong Line 12 fab, which has a monthly capacity of 80k-100k 12-inch wafers, from 2D NAND to 1c DRAM production for HBM4. This move reallocates significant capacity from a legacy, low-demand technology to a high-demand AI memory segment. Bullish: This planned capacity shift reduces future 2D NAND supply while increasing HBM4/DRAM output, tightening supply for legacy NAND and supporting HBM availability.

Impact and signal

Medium impactImpact score: 65/100

Affected components and suppliers

HBM4DRAM2D NAND Flash
capacity-expansionfab-conversionhbm

Source and time

Source: TechPowerUp · 2/25/2026 · View original source

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