Samsung 900-Layer V-NAND Prototype Combines Two 450-Layer Cells Into One, As It Is Inches Away From 1000-Layer NAND Samsung is a pioneer in storage semiconductors. Its V-NAND technology is seen as one of the best on the market, and back in 2024, the company planned to roll out 1000-layer NAND using new "ferroelectric" materials.

As per ETNews, Samsung achieved its first 900-Layer V-NAND technology using CMB (Cell Multi-Bonding) technology, which essentially couples two 450-layer cell stacks into a single device. With 900-Layers of V-NAND, Samsung will be able to dramatically boost the capacity of storage solutions such as SSDs, which are featured across all aspects of the computing world, including Enterprise and Client segments such as Servers, Desktops, Laptops, smartphones, and more.

To achieve a staggering 900-Layer V-NAND, Samsung had a few obstacles to overcome, with wafer warping being one of the primary concerns. But that has been resolved with the introduction of the Upper Chuck Design. Other fixes included misalignment errors through the use of "Overlay Correction" technologies.

Currently, SK Hynix leads the race as it was the first to develop and offer 321-layer NAND technology. The work is already underway on 400-layer NAND, which will be achieved using Vertical Bonding at Samsung & Hybrid Bonding at SK Hynix.

At the same time, Chinese YMTC (Yangtze Memory Technologies Co) is also speeding up its NAND plans. The company already offers 294-layer and 232-layer NAND devices and is closing the gap with offshore companies such as Samsung, SK Hynix, and Micron. YMTC is also investing big in new fabs, which are set to double its current wafer output capacity at a crucial time when the markets are facing a significant supply-demand gap due to the AI hyper-cycle.

The stacked NAND approach to achieve 900+ layers is still in a prototype stage, but it paves the path ahead for future storage expansion. 1000-Layer V-NAND is currently aiming for a 2030 release with 400+ layers rolling out in the coming years.

By: DocMemory
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