Tuesday, May 15th 2018

International Memory Workshop: 3D NAND Flash to Reach 140 Layers By 2021

3D NAND has been one of the most important new technologies in allowing for greater storage density in space-constrained hardware (isn't that always the case, though?) As we've stepped away from the usual 2D NAND to the nowadays market-leading 3D solutions, which stack layers of memory one on top of the other (thus making use of vertical space instead of the usually more costly horizontal one), memory density and price per GB has been steadily declining - a relationship that isn't quite as parallel as it may seem, but still occurs.
Applied Material's Sean Kang, speaking at Japan's International Memory Workshop (IMW), said that he expects future 3D NAND technologies to achieve 140 layers (up from today's leading 64-layer tech) by 2021. Increased numbers of layers will allow for increased die densities whilst keeping the same PCB real-estate and implementation area; at the same time, which is something the industry is craving for as data-sets only continue to increase in size. Before 2021 and its 140-layer NAND comes (which will require new fabrication materials), 90-layer solutions are expected to be launched this year, with a 20% decrease in layer height, down from its current 60 nm to 55 nm, which will allow for relatively stable stack heights, even as the number of layers increases significantly (by around 40% compared to 64-layer tech). Cheaper, more dense NAND tech - what isn't there to like?
Sources: via ComputerBase.de, PC Watch
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11 Comments on International Memory Workshop: 3D NAND Flash to Reach 140 Layers By 2021

#1
Hood
I don't believe this. I am a founding member of The Flat SSD Society. Our mission is to prove that all NAND is 2D, and 3D NAND is a myth. You can keep your fake photos of layers, they're obviously photo-shopped. Join the fight against 3D SSDs!
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#2
Imsochobo
as hbm is essentially much the same so we should be seeing the same for gpu's eventually no?
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#3
PowerPC
Dude, those SSDs will be THICCC!

:fear:
Posted on Reply
#4
Caring1
More layers equals more heat to dissipate.
Posted on Reply
#5
Vya Domus
Imsochobo said:
as hbm is essentially much the same so we should be seeing the same for gpu's eventually no?
You mean for GPU dies ? Probably not , it would be unfeasible because of heat dissipation.
Posted on Reply
#6
Imsochobo
Vya Domus said:
You mean for GPU dies ? Probably not , it would be unfeasible because of heat dissipation.
I meant if it's actually cost effective like they seem to indicate as well as space savings should the cost be simular for hbm was what I meant. :)
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#7
Nuckles56
So I guess it will be time to up the price by 140 times because we aren't making enough money per die vs planar NAND
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#8
silentbogo
Hood said:
I don't believe this. I am a founding member of The Flat SSD Society. Our mission is to prove that all NAND is 2D, and 3D NAND is a myth. You can keep your fake photos of layers, they're obviously photo-shopped. Join the fight against 3D SSDs!
That just made my day. :laugh::laugh::laugh::laugh::roll::roll::roll:
Posted on Reply
#9
LemmingOverlord
Nuckles56 said:
So I guess it will be time to up the price by 140 times because we aren't making enough money per die vs planar NAND
Well, considering we already have 64-layer NAND, then 140-layer is a factor of 2.2, still I don't disagree with you

Actually curious of what the thermal profile is on a 140-layer NAND chip.
Posted on Reply
#10
Easo
Caring1 said:
More layers equals more heat to dissipate.
I somehow don't think that is going to be a big issue.
The capacity gains alone will be worth it.
Posted on Reply
#11
Vayra86
Hood said:
I don't believe this. I am a founding member of The Flat SSD Society. Our mission is to prove that all NAND is 2D, and 3D NAND is a myth. You can keep your fake photos of layers, they're obviously photo-shopped. Join the fight against 3D SSDs!
This needs to be in a sig
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