- Samsung wants the number of NAND layers to reach four digits this decade
- Future M.2 SSDs can be expanded from 8 TB to 32 TB capacity
- Cell Multi-Bonding can replace traditional approaches to NAND density growth
Samsung has mapped out a NAND strategy that stretches toward 1,000-layer memory designs as demand for denser storage continues to accelerate across industries.
The roadmap, unveiled at the IEEE/JSAP VLSI Symposium 2026, extends current vertical scaling plans well beyond existing commercial products.
At the center of these ambitions sits a future generation of storage capable of pushing familiar SSD capabilities into uncharted territory.
The route from today’s drives to tomorrow’s 32TB M.2 SSDs
Samsung expects its NAND technology to reach around 420 layers in 2029, before going beyond 560 layers during the 2030s.
Beyond this point, the company intends to explore architectures carrying between 900 and 1000 layers within future generations of flash memory.
Instead of constructing one towering NAND structure, Samsung plans to combine multiple stacks through its Cell Multi-Bonding technology approach.
The method combines separate NAND structures into one package to achieve densities similar to 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 forecasts, this arrangement could increase storage density by as much as four times current generation solutions.
An example outlined during the presentation involved an 8TB QLC M.2 drive that eventually scales up to reach 32TB capacity.
That scenario would allow for significantly larger SSDs without increasing physical dimensions, preserving the compact M.2 format many users remember well.
The same scaling approach could eventually contribute to enterprise drives exceeding 100TB, while bringing Petabyte SSD discussions closer to reality.
The technical issues that stand between Samsung and a petabyte SSD
Samsung recognized that increasing layer counts introduce manufacturing complications that become progressively more difficult as structures grow vertically taller.
A major concern involves wafer warpage, where higher structures can deform during production and reduce manufacturing consistency or yield.
Another challenge comes from maintaining alignment accuracy across hundreds of stacked layers, which requires extremely precise overlay control throughout manufacturing processes.
Even relatively small deviations between layers can affect long-term reliability, performance and manufacturing efficiency across finished stock products.
To limit the deformation effects, Samsung plans to introduce an Upper Chuck design to stabilize increasingly complex wafer structures.
The company also discussed Overlay Correction technologies intended to improve alignment precision as future NAND structures continue to scale up.
These developments come as conventional process shrinking becomes increasingly difficult, forcing memory manufacturers into more extensive vertical architectures.
Separately, Samsung has discussed a record 400-layer NAND generation that could help push AI hyperscaler SSD capacity beyond the 200TB barrier.
The company has also linked 430-layer NAND technology to a future where 100TB SSDs become increasingly mainstream across enterprise deployments.
Samsung will work with hafnia ferroelectrics to expand the practical number of layers beyond 1000 layers.
Whether these designs eventually deliver mainstream 32TB M.2 drives or petabyte SSDs, however, depends on manufacturing realities rather than roadmaps.
Samsung’s latest roadmap nevertheless suggests that the race to NAND supremacy hinges on stacking ingenuity rather than shrinking dimensions.
Via The Guru of 3D
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