SanDisk Announces 48-Layer 3D NAND


SanDisk Unveils the World's Highest Capacity microSD Card

SanDisk Announces 48-Layer 3D NAND


SanDisk Corporation, a global leader in flash storage solutions, today announced that it has successfully developed its 48 layer second generation 3D NAND, also referred to as BiCS2. Pilot production will commence as planned in the second half of 2015 in the Yokkaichi joint venture facility, with meaningful commercial production targeted for 2016.

"We are very pleased to announce our second generation 3D NAND, which is a 48 layer architecture developed with our partner Toshiba," said Dr. Siva Sivaram, executive vice president, memory technology, SanDisk. "We utilized our first generation 3D NAND technology as a learning vehicle, enabling us to develop our commercial second generation 3D NAND, which we believe will deliver compelling storage solutions for our customers." 


 SanDisk Announces 48-Layer 3D NAND

(A diagram of Samsung's 3D vNAND)

SanDisk plans to use the second generation 3D NAND technology across a broad range of solutions, from removable products to enterprise SSDs.


What is v-NAND?

The traditional way to increase memory density has been to shrink the production process, similar to CPUs and GPUs, but in the case of memory performance and durability start to drop off when you get smaller and smaller. Reducing the process nodes used in SSDs further may even lower the expected performance of SSDs.

Samsung 850 Pro SSD  Samsung 850 Pro SSD  


Samsung’s solution, which SanDisk and other manufacturers seem to be copying, is to stack higher, rather than wider and have created 3D NAND chips, called V-NAND by Samsung, which add transistors vertically as well as horizontally. Because they can increase density by going vertically as well as horizontally, the new 850 Pro SSDs don’t even need to run the same 19nm memory as the 840 EVO drives, but rather use the older 30nm process. despite the larger process node the memory density and power requirements remain lower than their 19nm NAND, while still offering higher performance. 




V-NAND is going to hit out PCs by storm in the next few years, not just by way of new SSDs but in GPU and even System memory, let’s hope that as adoption of this new tech spreads we will even see a price reduction. Come on guys we all want 25p/GB SSDs don’t we? (perhaps a bit over ambitious).


Join the discussion on SanDisk's 48-Layer 3D NAND on the OC3D Forums.

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Most Recent Comments

26-03-2015, 16:48:01

It's good to see other companies following Samsung's lead. The more competition the better.Quote

26-03-2015, 17:28:03

Originally Posted by yassarikhan786 View Post
It's good to see other companies following Samsung's lead. The more competition the better.
Samsung wasn't the first to come up with it.. its been in R&D for many companies for a while. Samsung was just the first to come out with it..

Also related news to this. Intel and Micron's partnership also allowed them to release new details on their sample of 48 layer 3d nand.. Was also announced this morning.Quote

31-03-2015, 19:06:52

The Jniac
Sooo, 3D NAND all around?

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