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Guru3D.com » News » Samsung Announces Sixth Generation 3D V-NAND SSDs - 136 layers

Samsung Announces Sixth Generation 3D V-NAND SSDs - 136 layers

by Hilbert Hagedoorn on: 08/06/2019 08:48 AM | source: | 5 comment(s)
Samsung Announces Sixth Generation 3D V-NAND SSDs - 136 layers

Starting with a 250GB SATA SSD now in production, Samsung plans to offer high-speed, high-capacity SSDs and eUFS solutions based on its sixth-generation V-NAND.

Samsung Electronics, the world leader in advanced memory technology, today announced that it has begun mass producing 250-gigabyte (GB) SATA solid state drive (SSD) that integrates the company’s sixth-generation (1xx-layer) 256-gigabit (Gb) three-bit V-NAND for global PC OEMs. By launching a new generation of V-NAND in just 13 months, Samsung has reduced the mass production cycle by four months while securing the industry’s highest performance, power efficiency and manufacturing productivity.

“By bringing cutting-edge 3D memory technology to volume production, we are able to introduce timely memory lineups that significantly raise the bar for speed and power efficiency,” said Kye Hyun Kyung, executive vice president of Solution Product & Development at Samsung Electronics. “With faster development cycles for next-generation V-NAND products, we plan to rapidly expand the markets for our high-speed, high-capacity 512Gb V-NAND-based solutions.”

The Only Single-stack 3D Memory Die With a 100+ Layer Design

Samsung’s sixth-generation V-NAND features the industry’s fastest data transfer rate, capitalizing on the company’s distinct manufacturing edge that is taking 3D memory to new heights.

Utilizing Samsung’s unique ‘channel hole etching’ technology, the new V-NAND adds around 40-percent more cells to the previous 9x-layer single-stack structure. This is achieved by building an electrically conductive mold stack comprised of 136 layers, then vertically piercing cylindrical holes from top to bottom, creating uniform 3D charge trap flash (CTF) cells.

As the mold stack in each cell area increases in height, NAND flash chips tend to become more vulnerable to errors and read latencies. To overcome such limitations, Samsung has incorporated a speed-optimized circuit design that allows it to achieve the fastest data transfer speed, at below 450 microseconds (μs) for write operations and below 45μs for reads. Compared to the previous generation, this represents a more than 10-percent improvement in performance, while power consumption is reduced by more than 15 percent.

Thanks to this speed-optimized design, Samsung will be able to offer next-generation V-NAND solutions with over 300 layers simply by mounting three of the current stacks, without compromising chip performance or reliability.

In addition, the number of channel holes required to create a 256Gb chip density has decreased to 670 million holes from over 930 million with the previous generation, enabling reduced chip sizes and less process steps. This brings a more than 20-percent improvement in manufacturing productivity.

Leveraging the high-speed and low-power features, Samsung plans to not only broaden the reach of its 3D V-NAND into areas like next-generation mobile devices and enterprise servers, but also into the automotive market where high reliability is extremely critical.

Following today’s introduction of the 250GB SSD, Samsung plans to offer 512Gb three-bit V-NAND SSD and eUFS in the second half of this year. The company also expects to expand production of higher-speed and greater-capacity sixth-generation V-NAND solutions at its Pyeongtaek (Korea) campus starting next year to better meet demand from global customers.

Reference: Samsung V-NAND Mass Production Timeline

Date V-NAND
July 2013 1st-generation (24-layer) 128Gb MLC V-NAND
Aug. 2013 1st-generation 128Gb MLC V-NAND 960GB SSD
Aug. 2014 2nd-generation (32-layer) 128Gb 3-bit V-NAND
Sept. 2014 2nd-generation V-NAND SSD
Aug. 2015 3rd-generation (48-layer) 256Gb 3-bit V-NAND
Sept. 2015 3rd-generation V-NAND SSD ‘850 EVO’, ‘950 PRO’
Dec. 2016 4th-generation (64-layer) 256Gb 3-bit V-NAND
Jan. 2017 4th-generation V-NAND SSD
Jan. 2018 4th-generation 512Gb V-NAND 30.72TB SAS SSD
May 2018 5th-generation (9x-layer) 256Gb 3-bit V-NAND
June 2018 5th-generation V-NAND SSD
June 2019 6th-generation (1xx-layer) 256Gb 3-bit V-NAND
July 2019 6th-generation V-NAND SSD

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Samsung Announces Sixth Generation 3D V-NAND SSDs - 136 layers




« Toshiba Memory Introduces XL-FLASH Storage Class Memory Solution · Samsung Announces Sixth Generation 3D V-NAND SSDs - 136 layers · WD Launches Two New Families of NVMe SSDs »

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DG21
Senior Member



Posts: 120
Joined: 2017-02-27

#5697854 Posted on: 08/06/2019 05:38 PM
Hmmm... And the 10th generation - write (possible only) once, read many. xD

robintson
Senior Member



Posts: 423
Joined: 2010-11-08

#5697890 Posted on: 08/06/2019 07:49 PM
Sure, go ahead Samsung. Instead of offering higher performance and reliability, they offer only more nand Layers and lower nand write cycles. That's the Samsung's right way to do business

JJayzX
Senior Member



Posts: 507
Joined: 2006-05-17

#5697930 Posted on: 08/06/2019 10:09 PM
Sure, go ahead Samsung. Instead of offering higher performance and reliability, they offer only more nand Layers and lower nand write cycles. That's the Samsung's right way to do business

Samsung isn't the only one doing this, they're all going for size. SSDs still have to catch up to HDDs in size.

abula
Senior Member



Posts: 846
Joined: 2002-01-24

#5697951 Posted on: 08/06/2019 11:26 PM
Sure, go ahead Samsung. Instead of offering higher performance and reliability, they offer only more nand Layers and lower nand write cycles. That's the Samsung's right way to do business
Its the practice that all will follow, else you wont get bigger SSDs, specially in the 2280 NVME space. If you want more endurance.... overprovision your ssds.

MegaFalloutFan
Senior Member



Posts: 981
Joined: 2015-06-27

#5698086 Posted on: 08/07/2019 12:57 PM
Its the practice that all will follow, else you wont get bigger SSDs, specially in the 2280 NVME space. If you want more endurance.... overprovision your ssds.


There is no need to overprovision modern SSDs, they can use empty space left

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