http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/ Engadget Comments for Toshiba to ship 32nm process NAND flash memory http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 11:40AMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 11:46AMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 12:04PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 12:00PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/]]>Apr 27th 2009 1:25PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 2:58PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 12:07PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 12:15PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/
http://en.wikipedia.org/wiki/22_nanometer

]]>Apr 27th 2009 2:49PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 12:39PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 1:27PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/
Each generation is 2^(-1/2) as large as the last one.

As mentioned above, NAND very often takes half steps, for example there was 55nm NAND between 65nm and 45nm.]]>Apr 27th 2009 2:17PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 2:44PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 12:16PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/
Currently it's at some 10,000-50,000 erase cycles. It'll probably be a fraction of that at 32nm.]]>Apr 27th 2009 1:27PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/]]>Apr 27th 2009 1:28PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/
You have to whiten all your data in order to get the same number of write cycles as the previous generation NAND. And the leakage is starting to become a problem. I'm told the data retention spec is bit over 90 days now. That means turn your device off for 3 months and it'll start to lose bits. The ECC will keep you in the game for much longer than 3 months, but to me it's still very scary. Is it really that useful to have a storage device that is fast if I have to worry about the data evaporating? It makes me wonder if spinning media still holds the upper hand for the foreseeable future.

Wwhat:
It happens because the floating gates in the NAND are so small now they don't hold a lot of electrons. So it means fewer have to leak out over time in order to change the value of a cell from 1 to 0. Additionally, MLC NAND stores one of 4 different values in a cell, which means even fewer electrons have to leak in order to change the value in the cell.]]>Apr 27th 2009 2:13PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 10:09PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/It's great to see optimists like you in the world.

But seriously, I just told you how they plan to fix it. More ECC and data whitening.

MLC will still be MLC and SLC will still be SLC. There'd be no point in eliminating MLC, because then 32nm would hold no more data than 45nm (MLC) did in a given area at a given price. To make things worse, there is now 3LC NAND which stores 3 bits (8 values) per cell.]]>Apr 27th 2009 10:39PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 2:46PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 3:05PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 6:15PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 10:10PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 8:35PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 27th 2009 9:53PMhttp://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/http://www.engadget.com/2009/04/27/toshiba-to-ship-32nm-process-nand-flash-memory/Apr 29th 2009 7:15PM