WD plans to mass-produce 162-layer NAND through the top of the 12 months, over 200 layers through 2024

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In a nutshell: Western Virtual plans to begin mass-producing 162-layer BiCS6 three-D NAND, which is most probably for use in PCIe 5 SSDs through the top of this 12 months. The corporate may be running on NAND with 200+ layers supposed for datacenter garage, PLC, and tactics to bond in combination more than one three-D NAND wafers to extend the choice of layers.

Western Virtual, in conjunction with spouse Kioxia, simply gave us a take a look at their roadmap for the following couple of years of NAND construction. The corporate plans to introduce its sixth technology BiCS quickly, which is able to characteristic 162 layers in TLC and QLC configurations.

Whilst that would possibly now not sound so spectacular taking into consideration competition like Micron have had 176-layer NAND for some time now, WD claims they’re going to shrink the reminiscence mobile dimension through the use of a brand new subject matter, leading to smaller die sizes.

The corporate hopes that this may increasingly let them construct less expensive garage gadgets that carry out simply as smartly. Mass manufacturing of BiCS6 three-D NAND is scheduled to begin in past due 2022, with WD making plans to make use of those chips in merchandise starting from reasonable USB drives to PCIe 5.0 SSDs.

WD additionally mentioned their upcoming BiCS+ reminiscence with over 200 layers, which is ready to reach through 2024. It’s going to characteristic 55 % extra bits in line with wafer, 60 % upper switch velocity, and a fifteen % upper write velocity in comparison to BiCS6.

It is value noting that BiCS+ is supposed for use best in datacenter SSDs, as the corporate plans to provide a distinct magnificence of 2xx-layer NAND for client garage, dubbed BiCS-Y.

Western Virtual moreover shared that they’re running on more than one applied sciences to make stronger density and capability, together with PLC, and that they are making plans to construct NAND with 500+ layers inside the subsequent decade.

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