DRAM 4F²: Samsung, SK Race Ahead as Micron Sticks With 6F² in Head-On Technology Route Clash
Samsung, SK Hynix, and CXMT are advancing 4F² DRAM technology, while Micron abandons it, focusing on 6F² and 3D stacking. Samsung and SK Hynix aim for commercialization by 2027-2028, potentially impacting cost competitiveness and chip density. Micron's strategy includes wafer bonding and vertical HBM. Market shares in NAND are shifting, with Chinese firms gaining ground. Shares of Samsung and SK Hynix rose 6% on the news.
How this was made
The 30-second read
Why it matters
The differing technology routes will affect competitive dynamics, equipment demand, and pricing power across the memory market.
Market read
The strategic technology choices will influence DRAM supply, pricing, and the broader semiconductor equipment market.
What to watch
The cost and yield challenges of 4F² could delay Samsung and SK Hynix, giving Micron a competitive advantage.
Background
The article compares the divergent DRAM scaling strategies of the three leading memory manufacturers and reports Micron's strategic shift away from 4F².
Ticker impact
Micron announced it will abandon the 4F² DRAM cell structure and continue with its 6F² roadmap, a new strategic shift.
likely pressure as the market prices in potential cost disadvantage versus 4F² adopters
The decision reduces Micron's ability to match density gains of Samsung and SK Hynix, which could hurt its market share.
Samsung Electronics is advancing 4F² development with vertical channel transistors and wafer bonding, positioning it ahead in next‑gen DRAM.
likely upside as investors price in potential market share gains from 4F² adoption
Samsung's announced progress signals a competitive edge over Micron and may attract demand for higher‑density memory.
SK Hynix is pursuing a 4F² vertical‑gate platform and wafer bonding, targeting sub‑10nm processes.
potential upside as the market anticipates successful 4F² mass production
SK Hynix's roadmap aligns with industry demand for higher density, positioning it favorably against Micron.
Market effects
The DRAM technology race could reshape the memory sector, favoring firms that master 4F² and impacting equipment suppliers.
South Korean memory makers may see increased investor interest, while US‑based Micron could face share pressure.
High relevance for global tech hardware supply chains and AI‑driven data center demand.
Counterpoint
Micron's focus on 6F² may reduce risk and allow faster time‑to‑market, potentially preserving margins.
Key entities
- CompanyMicron Technology
US‑listed memory chip maker abandoning 4F².
- CompanySamsung Electronics
South Korean memory leader advancing 4F².
- CompanySK Hynix
South Korean memory maker pursuing 4F² vertical‑gate platform.
