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64-layer V-NAND Flash and SSD

14.08.2016

Samsung Electronics showcased its latest flash memory solutions at Flash Memory Summit 2016. In particular, fourth-generation V-NAND flash memory chips and large-capacity drives are shown.

The new V-NAND flash memory includes 64 layers - 30% more than its predecessor. Each cell is capable of storing three bits of information. The density of the crystal is 512 Gbps, and the data transfer rate it supports reaches 800 Mbps. These parameters are a record for the industry. In mass-produced products, the new memory will begin to appear in the next quarter.

The first use of the new memory was a 2,5-inch 32TB SAS SSD. According to Samsung, this is the most capacious SSD in its category. It uses 512 new V-NAND chips, which are grouped in 16 pieces in 32 packages. The serial production of such SSDs is planned to begin in 2017, and by 2020 Samsung expects to begin production of SSDs with a capacity of more than 100 TB.

The Samsung exposition is completed by a single-case 1TB SSD in a BGA package. It includes V-NAND, LPDDR4 DRAM and controller dies. This drive offers read speeds up to 1500MB/s and write speeds up to 900MB/s.

In addition, the manufacturer announced the creation of Z-SSD solid-state drives, which are characterized by very low latency and high data transfer rates, overcoming the limitations of current NVMe models. Samsung promises to introduce these drives next year.

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