- Samsung wants NAND layer counts to reach four digits this decade
- Future M.2 SSDs could expand from 8TB to 32TB capacities
- Cell Multi-Bonding may replace traditional approaches to NAND density growth
Samsung has mapped out a NAND strategy stretching toward 1000-layer memory designs as demand for denser storage continues accelerating across industries.
The roadmap, disclosed during the IEEE/JSAP VLSI Symposium 2026, extends current vertical scaling plans far beyond existing commercial products.
At the centre of those ambitions sits a future generation of storage capable of pushing familiar SSD capacities into unfamiliar territory.
The route from today's drives to tomorrow's 32TB M.2 SSDs
Samsung expects its NAND technology to reach roughly 420 layers by 2029 before advancing beyond 560 layers during 2030.
Beyond that point, the company intends to explore architectures carrying between 900 and 1000 layers within future generations of flash memory.
Rather than constructing one towering NAND structure, Samsung plans to combine multiple stacks through its Cell Multi-Bonding technology approach.
The method joins separate NAND structures together inside one package to achieve densities that resemble a single 1000-layer device.
Samsung specifically discussed pairing two approximately 450-layer structures to approach the effective density associated with future four-digit layer counts.
According to company projections, this arrangement could increase storage density by as much as four times current generation solutions.
One example outlined during the presentation involved an 8TB QLC M.2 drive eventually scaling upward to reach 32TB capacities.
That scenario would allow substantially larger SSDs without increasing physical dimensions, preserving the compact M.2 format many users remember well.
The same scaling approach could eventually contribute toward enterprise drives exceeding 100TB while bringing Petabyte SSD discussions closer to reality.
The engineering problems standing between Samsung and a petabyte SSD
Samsung acknowledged that increasing layer counts introduces manufacturing complications that become progressively harder as structures grow vertically taller.
One major concern involves wafer warpage, where taller structures can deform during production and reduce manufacturing consistency or yields.
Another challenge comes from maintaining alignment accuracy across hundreds of stacked layers, requiring extremely precise overlay control throughout fabrication processes.
Even relatively minor deviations between layers can affect long-term reliability, performance, and manufacturing efficiency across finished storage products.
To limit deformation effects, Samsung plans to introduce an Upper Chuck Design intended to stabilise increasingly complex wafer structures.
The company also discussed Overlay Correction technologies intended to improve alignment precision as future NAND structures continue growing upward.
These developments arrive as conventional process shrinking becomes increasingly difficult, forcing memory manufacturers toward more elaborate vertical architectures.
Samsung has separately discussed a record-breaking 400-layer NAND generation that could help push AI hyperscaler SSD capacities beyond the 200TB barrier.
The company has also linked 430-layer NAND technology with a future where 100TB SSDs become increasingly mainstream across enterprise deployments.
Samsung will work with hafnia ferroelectrics in order to extend the practical layer counts beyond 1000 layers.
However, whether these designs eventually deliver mainstream 32TB M.2 drives or petabyte SSDs remains dependent upon manufacturing realities rather than roadmaps.
Samsung's latest roadmap nevertheless suggests the race toward NAND supremacy depends upon stacking ingenuity rather than shrinking dimensions.
Via The Guru of 3D
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