Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Micron's ClearNAND: 25nm + ECC, Combats Increasing Error Rates

01 Feb 2011   #1

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
Micron's ClearNAND: 25nm + ECC, Combats Increasing Error Rates

I guess smaller is not always better.

This is what's causing the delay of the Gen3 SSDs.
All G3 SSDs are having these issues, it's due to the 25nm nand memory has more errors and wears out faster than the previous larger sizes. This is mainly due to it being so much smaller.
Read below for the details.

Hope they can find a resolution for this issue.

Micron's ClearNAND: 25nm + ECC, Combats Increasing Error Rates

Eleven months ago Intel and Micron, jointly as IMFT,announced intentions to move to 25nm NAND by the end of 2010. For the past few months, IMFT has been shipping 25nm NAND although none of it has ended up in the high performance SSDs we love to cover just yet.
The problem, as with a jump to any new manufacturing node, has to do with yields. In the microprocessor space, new processes generally mean you can’t reach your clock targets and you may use more power than you’d like. The more experience you have in working with the process the more you can get these two variables under control and eventually you have a technology you can ship to the market.

The same is true with NAND, although the vectors of improvement are a bit different. Rather than clock speed and power (although both are affected) the main focus these past few months has been increasing endurance and reducing uncorrectable bit error rate.

When I first started reviewing SSDs IMFT was shipping 50nm MLC NAND rated at 10,000 program/erase cycles per cell. As I mentioned in a recent SSD article, the move to 3xnm cut that endurance rating in half. Current NAND shipping in SSDs can only last half as long, or approximately 5,000 program/erase cycles per cell. Things aren’t looking any better for 25nm. Although the first 25nm MLC test parts could only manage 1,000 P/E cycles, today 25nm MLC NAND is good for around 3,000 program/erase cycles per cell.
The reduction in P/E cycles is directly related to the physics of shrinking these NAND cells; the smaller they get, the faster they deteriorate with each write. Remember this diagram?

My System SpecsSystem Spec

 Micron's ClearNAND: 25nm + ECC, Combats Increasing Error Rates

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar help and support threads
Thread Forum
Microsoft combats Chromebooks by cutting Windows licensing fees by 70
Microsoft is reportedly cutting Windows 8.1 license costs by 70 percent for PC makers. Bloomberg News reports that the cuts are targeted at devices that retail for less than $250, in a move designed to combat rival low-cost tablets and Chromebooks. PC makers are usually charged $50 for a license of...
BSOD occuring with increasing frequency, different error codes
Have been getting BSODs more and more frequently over the last week. Can't think of anything special that triggered the behaviour though. It mostly happens when the computer idles and I'm doing other stuff, and doesn't seem to relate to computer load etc. Did a bit of digging myself and used...
BSOD Help and Support
Micron's RealSSD C400 uses 25nm NAND at $1.61/GB, Offers 415MB/s Reads
Intel 25nm flash chips spotted
Looks like speculation or the info is starting to leak. Source... Also saw a German site claiming to have X 25-V in 80GB and 160GB.
Are you safe? FBI combats cyber crime on popular social networking....
More - Are you safe? FBI combats cyber crime on popular social networking sites | San Diego Gay & Lesbian News
Intel and Micron first to 25nm with new flash memory..
Source - Intel and Micron first to 25nm with new flash memory chips
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 23:33.

Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App