200TB SSD is not a dream! SK hynix plans to roll out 800+ layer NAND flash

Source:   Editor: admin Update Time :2019-08-13

It was announced that SK hynix has developed 128-layer 4D NAND flash successfully, which is already in mass production. While other vendors are racing to launch new NAND flash products, so far technology has not yet reached limits. According to Economic Daily, SK hynix has unveiled its plans that 800+ layer NAND flash is expected to be available in 2030 when SSD with capacity of 100 to 200TB can be produced easily.

At the flash Memory Summit, SK hynix announced its plans of new products and the company. The details are as follows.

  • V4 – 72 layers – it is in mass production at present
  • V5 – 96 layers –it is also in mass production at present and capacity is about to exceed V4
  • V6 – 128 layers – mass production starts in Q4 2019
  • V7 – 176 layers in 2020
  • V? – 500 layers in 2025 and 30% increase in TB/wafer
  • V? – 800+ layers in 2030 and 50% increase in TB/wafer to 150-200TB

It is reported that SK hynix is developing a 128-layer 4D NAND flash, which will be in production in the fourth quarter of 2019. SK hynix also displayed a new SSD, the PE8030 with a PCIe 4.0 x 4 interface, having capacity of 800GB, 1600GB, 3200GB and 6400GB. The maximum speed of continuous reading and writing is 6200MB/s and 3300MB/s, while the maximum speed of 4KB random reading and writing is 950K IOPS and 260K IOPS.

In research and development, SK hynix is currently developing 176 layer NAND flash. As for other products, 72-layer 4D NAND flash is currently in mass production and 96-layer stack 4D NAND flash is also in mass production of which the capacity will surpass 72-layer 4D NAND flash. The 128-layer stack's 4D NAND flash will be mass-produced in the fourth quarter of 2019. In addition, the 176-layer NAND flash will be available in 2020 and the 500-layer NAND flash in 2025, of which the ratio of TB/wafer could be increased by 30%. While 800+ layer NAND flash is expected to come out in 2030 with the ratio of TB/wafer expected to increase to 100TB to 200TB.

It is reported that the core capacity of 128-layer stack NAND flash produced by SK hynix is 1Tbit and the core capacity of 176-layer stack is 1.38Tbit. The core capacity of 500-layer stack is expected to reach 3.9Tbit, while the core capacity of 800-layer stack products is up to 6.25Tbit, which is more than 6 times the current product.

It's worth noting that the current maximum capacity of SSD is around 15 to 16 terabytes. Based on the 6-fold increase in core capacity, the capacity of Solid State Drive SSDs could be around 200TB in the future, which is much larger than current HDDs.


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