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Guru3D.com » News » SK Hynix Starts Mass-Producing World’s First 128-Layer 4D NAND

SK Hynix Starts Mass-Producing World’s First 128-Layer 4D NAND

by Hilbert Hagedoorn on: 06/26/2019 08:24 AM | source: | 7 comment(s)
SK Hynix Starts Mass-Producing World’s First 128-Layer 4D NAND

SK Hynix announces today that it has developed and starts mass-producing 128-Layer 1Tb (Terabit) TLC (Triple-Level Cell) 4D NAND Flash, which is eight months after the Company announced the 96-Layer 4D NAND Flash last year. They are also developing 176-Layer NAND already.

The 128-Layer 1Tb NAND chip offers the industry's highest vertical stacking with more than 360 billion NAND cells, each of which stores 3 bits, per one chip. To achieve this, SK hynix applied innovative technologies, such as “ultra-homogeneous vertical etching technology,” “high-reliability multi-layer thin-film cell formation technology,” and ultra-fast low-power circuit design, to its own 4D NAND technology.

The new product provides the industry's highest density of 1Tb for TLC NAND Flash. A number of companies including SK hynix have developed 1Tb QLC (Quad-Level Cell) NAND products, but SK hynix is the first to commercialize the 1Tb TLC NAND Flash. TLC accounts for more than 85% of the NAND Flash market with excellent performance and reliability. The small chip size, the biggest advantage of the Company’s 4D NAND, allowed SK hynix to realize ultra-high-density NAND Flash memory. The Company announced the innovative 4D NAND in October 2018, which combined 3D CTF (Charge Trap Flash) design with the PUC (Peri. Under Cell) technology.

With the same 4D platform and process optimization, SK hynix was able to reduce the total number of manufacturing processes by 5% while stacking 32 more layers on the existing 96-Layer NAND. As a result, the investment cost for the transition from 96-Layer to 128-Layer NAND has been reduced by 60% compared to the previous technology migration, significantly boosting investment efficiency. The 128-Layer 1Tb 4D NAND increases bit productivity per wafer by 40% compared to the Company’s 96-Layer 4D NAND. SK Hynix will start shipping the 128-Layer 4D NAND flash from the second half of this year, while continuing to roll out various solutions.

With its four-Plane architecture in a single chip, this product achieved a data transfer rate of 1,400Mbps (Megabits/sec) at 1.2V, enabling high-performance and low-power mobile solutions and enterprise SSD. SK Hynix plans to develop the next-generation UFS 3.1 product in the first half of next year for major flagship smartphone customers. With 128-Layer 1Tb NAND Flash, the number of NAND chips necessary for a 1TB (Terabyte) product, currently the largest capacity for a smart phone, will be reduced by half, compared to 512Gb NAND; it will provide customers with a mobile solution with 20% less power consumption in a 1mm-thin package. The Company also intends to start mass production of a 2TB client SSD with an in-house controller and software in the first half of next year. 16TB and 32TB Non-Volatile Memory express (NVMe) SSDs for cloud data centers will be released next year as well.

SK Hynix is developing the next-generation 176-Layer 4D NAND Flash, and will continue to strengthen the competitiveness of its NAND business through technological advantages.



SK Hynix Starts Mass-Producing World’s First 128-Layer 4D NAND SK Hynix Starts Mass-Producing World’s First 128-Layer 4D NAND




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Venix
Senior Member



Posts: 2860
Joined: 2016-08-01

#5684521 Posted on: 06/26/2019 11:06 AM
Sounds all nice and good but i i wou like to hear the endurance cycles on that one

Silva
Senior Member



Posts: 1962
Joined: 2013-06-04

#5684553 Posted on: 06/26/2019 01:07 PM
Sounds all nice and good but i i wou like to hear the endurance cycles on that one

It's TLC, the endurance should be good. Not as good as MLC, of course, but still miles better than the crap QLC.

Fox2232
Senior Member



Posts: 11808
Joined: 2012-07-20

#5684559 Posted on: 06/26/2019 01:14 PM
At one TB drive, even QLC could be acceptable. But sadly QLC prices are too close to TLC. Therefore TLC is better investment.

schmidtbag
Senior Member



Posts: 7153
Joined: 2012-11-10

#5684607 Posted on: 06/26/2019 03:13 PM
At one TB drive, even QLC could be acceptable. But sadly QLC prices are too close to TLC. Therefore TLC is better investment.

Yup - it is worth pointing out that for typical at-home workloads, the larger your drive is, the less you have to worry about endurance.

I have a 1TB TLC SSD that I use solely for storing games, and despite being around 80% full, I think its life cycle is still around 98%. If QLC drives were available at the time, I'd have got one because at this rate, the drive's SATA interface is going to become an obscurity before it starts to noticeably degrade.



Slightly off-topic, if endurance really is enough of a concern, there are ways to go about improving it to the point of irrelevance, such as:
* Disable hibernation
* Don't have a paging file or swap partition
* Disable caches in programs like web browsers
* Disable pre/super fetching
* Run updates for everything manually once a month
* Use another hard drive or RAM drive as a "scratch disk" for temporary files
* Don't buy a crappy cheap SSD

Venix
Senior Member



Posts: 2860
Joined: 2016-08-01

#5684686 Posted on: 06/26/2019 07:55 PM
It's TLC, the endurance should be good. Not as good as MLC, of course, but still miles better than the crap QLC.


i thought the cycles drop also with the addition to layers my bad ...well if that's the case bigger cheaper mlc nand chips are great !

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