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SanDisk, a leading supplier of NAND flash-based products, said that it had begun production of NAND flash memory using 19nm process technology, as planned, back in Q4. The company actually pins a lot of hopes onto the new type of flash memory and asserts that it will bring better performance, lower cost and even other.

"We began production of 19nm technology in Q4, and it will ramp throughout 2012. As we explained previously, NAND scaling is becoming more complex for the industry, resulting in a lower rate of cost reduction from technology transition. The 19nm technology will generate a lower cost reduction rate compared to what we achieved with the 24nm transition," said Sanjay Mehrotra, chief executive officer of SanDisk, during a conversation with financial analysts.

The head of the company disclosed that presently SanDisk makes multi-level cell (MLC, 2 bits per cell) and three-bits per cell (TLC) NAND memory using 19nm fabrication process. He did not elaborate about exact yields, but said that the new technology is on track to boost SanDisk's overall bit growth in 2012.

Mr. Mehrotra admits that TLC NAND flash memory is at present not suitable for business-critical enterprise applications, but is suitable for consumer-class solid-state drives, which corresponds to the vision of Ryan Petersen, the head of OCZ Technology, a major maker of SSDs.

"We will be looking at opportunities for 3bpc on the client SSD side. Enterprise SSD, I fully expect that to continue to be on 2bpc, given the high performance, the high reliability requirement of enterprise application," said the chief exec of SanDisk.

Tags: SanDisk, 19nm, NAND, Flash, SSD


Comments currently: 12
Discussion started: 01/29/12 12:08:16 PM
Latest comment: 01/31/12 11:19:59 AM
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i want to see what'll happen with 4bpc (100R/W cycles) 5bpc(10R/W cycles) and 6bpc (1R/W cycle) since
1bpc has 100000R/W cycles, 2bpc has 10000R/W cycles and 3bpc has 1000R/W cycles
will 7bpc mean 0.1 R/W cycle :-)
2 0 [Posted by: madooo12  | Date: 01/29/12 12:08:16 PM]

As AnandTech recently stated in an SSD review, don't buy an SSD now. Wait 6-12 months to see if SSD makers sort out the many Bugs.

It's clear from the statements in this article that Sandisk and OCZ consider "consumer-class" SSDs to be for the clueless sheep who will accept or tolerate lost data, BSOD, constant firmware updates and many RMAs. That is a very unscrupulous marketing perspective and Biz model, IMO.

Having purchased Sandisk products for some time, I must now re-evaluate if I want to support them after they express this attitude towards their customers??????
3 2 [Posted by: beenthere  | Date: 01/29/12 12:08:59 PM]
- collapse thread

Once again, what "lost data, BSOD, constant firmware updates, and many RMAs"? No one I know who owns SSDs, including myself, has ever experienced any of the above.

If anything, mechanical hard drives are the least reliable. I've had as many as 9 out of 10 ordered hard drives fail one after another in a period of months. They fail, and fail fast in my environment. What you should do is keep a keen look into the consumer feedback of the product you are purchasing as to forewarn you of any possible issues with that particular product. If people say the SSD has issues with the batch they got, get a different SSD, same goes for hard drives. What happens in manufacturing of products like hard drives and SSDs is that if one is broken, likely an entire batch of the product is broken, and a simple RMA can fix that.
0 2 [Posted by: mmstick  | Date: 01/30/12 10:44:27 AM]
really I remember i read somewhere some SSD had constant BSODs every hour or so after working for a lot of continuous hours, then the manufacturer rolled out an update a couple of days ago

yup here it is:

for me i've never gotten a corrupt HDD for my whole life (or an SSD actually)
but the 10,000 R/W operations limit on most SSDs concerns me a lot and is why I hate SSDs
1 1 [Posted by: madooo12  | Date: 01/30/12 11:52:33 AM]
It's stupid to hate SSDs due to that. The r/w cycles last for many many years of desktop use, since they're spread over the entire capacity.
1 0 [Posted by: sanity  | Date: 01/31/12 11:08:39 AM]
Your link doesn't really say anything about all SSDs being bad, only one model having an issue, and it even shows that an SSD that had an issue with a specific firmware is now fixed, therefore, no problem owning one, and that SSD manufacturers are always on the lookout for any issues that do appear and will fix them. This kind of stuff happens in the hardware business all the time, motherboards too, but you wouldn't tell people to not get an AM3+ motherboard just because they had BIOS issues for the first few months causing games to hard reset the computer if launched. It was only a matter of locating an older BIOS that worked and waiting for a patched BIOS.

It still stands that you should read the consumer feedback of a product before purchasing. You will find that most people buying SSDs love their SSD.

If they were as bad as you people make them out to be, these SSDs wouldn't be getting 4-5/5 reviews.

As for the 10,000 Write limit, (there is no read limit) that shouldn't concern you at all, if you understand how an SSD works. It doesn't write to the same spot 10,000 times, it spreads write cycles evenly across the entire drive, and it does store around 10GB (for a 60GB drive) in backup to replace worn out cells actively. I have handled approximately 1-2GB of writing to my SSD per day over 1.5 years, and it shows no signs of being worn.

If you haven't gotten a broken hard drive in your life you must not have been in the computer business for very long. They are the least reliable component in the entire system. And they are the most pain to retrieve data for customers on broken hard drives (have to transplant the magnetic disks into another hard drive).

You can't hate something you have limited understanding of.
0 0 [Posted by: mmstick  | Date: 01/31/12 11:11:24 AM]
Let's use mmstick's logic...

No one I know who lives, including myself, has ever experienced death.

Therefore, people do not die.
1 1 [Posted by: OUT FOX EM  | Date: 01/30/12 05:55:14 PM]
Great method of taking words out of context and not bringing information to the table.

PS: I have experienced people dying, as most people have, I guess you must live in a perfect world were no one in your family or friends die.
0 0 [Posted by: mmstick  | Date: 01/31/12 11:13:38 AM]
People can choose to use SSD for their setups. Most people do not understand that they will need to enforce a back up plan more than using HDD and to use a UPS. Will I use a SSD for my setups? Nope.

NAND Flash based SSD has been around for a long time, but none of the manufactures are willing to use all the techniques of making sure these types of SSD work well. All manufactures are figuring out the techniques like they are brand new.

However, Western Digital and Seagate have been and are providing different grades of their products for enterprise and desktops for years with different quality. The enterprise models do not get the same features and same quality that the desktop models have. Desktop models are testing grounds until the features and quality are mature enough to put in the enterprise models. Sandisk and other manufactures are no different.

BTW, Anandtech does state that people can buy SSD, but do not be too confident of SSD saving your data safely and after all they are based on NAND Flash memory with different grades of quality.
1 0 [Posted by: tecknurd  | Date: 01/30/12 01:16:10 PM]
It's the same as many businesses using tape and various other types of backup methods including backup servers combined with RAID1 because hard drives aren't reliable for saving data safely.

If anything, SSDs main purpose is for the speed, as we use SSDs in our servers as a means of reducing hardware cost of RAID setups. When you have a constant read of up to several hundred MB per second for a server, you are going to need some SSDs.

As all things go, you should always have backup plans. It is one of the most important topics in IT. There is no such thing as safe data.
0 0 [Posted by: mmstick  | Date: 01/31/12 11:19:59 AM]

NAND Flash based SSD has been around for a long time

This is not entirely correct. Yes NAND has been used in flash drives for a while, but it was not until 2009 when manufacturer's solidified the r/w leveling to increase the effective lifespan and speed of the NAND cells did the technology become widely used in SSD's, thus driving the popularity of the tech into to what it is now today
0 0 [Posted by: veli05  | Date: 01/31/12 09:14:18 AM]

NAND Flash memory with different grades of quality.

I guarantee you no manufacturer puts low grade cells and high grade cells into the same SSD. This is definitely not why the drives are failing, it in most cases the controllers behind the ssd that is causing the issues.
0 0 [Posted by: veli05  | Date: 01/31/12 09:16:29 AM]


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