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mark.lapedus

9/7/2010 1:29 AM EDT

Elpida and Spansion are niche players in NAND. They are small fish in a big pond ...

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greenpattern

9/4/2010 10:14 AM EDT

IM and Tosiba/Sandisk have been trying to extend floating gate forever. CTF is ...

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Will Elpida shake up NAND market?

Mark LaPedus

9/2/2010 3:12 PM EDT

SAN JOSE, Calif. - As reported, Japan's Elpida Memory Inc. on Thursday made its formal entry into the NAND flash market.

Will Elpida change the competitive NAND landscape? One analyst says no. The other says maybe.  

''Elpida’s entrance into the NAND market with the low density (4Gbit-1Gbit) 1.8V MirrorBit NAND  and Spansion coming out with 3V versions will have a very slight impact on the NAND market,'' said Alan Niebel, president of Web-Feet Research.

''These low density products either for wireless (Elpida) or the embedded/industrial (Spansion) markets will enable OEMs with legacy designs to have an alternative and on-going source of NAND,'' he said.

''Most of the other NAND vendors have migrated out of these ‘low’ densities and are developing TLC (3 bit/cell) to address low cost NAND at much higher densities (>16Gbit).  So, whether there are sufficient demand drivers to keep a couple of the NAND incumbents still manufacturing ‘low density’ NAND will determine how successful Elpida, Spansion and maybe the Taiwanese will be in this relatively small niche,'' he added.

Others had a different view. ''Elpida is the last DRAM maker to get into NAND (if we don't count companies who partner with larger DRAM makers).  This is important, since Objective Analysis predicts that future computers will include a NAND memory layer that will cause DRAM growth to slow down in all computing systems, from PCs to mainframes,'' said Jim Handy, an analyst with Objective Analysis.

They are also getting into charge trapping earlier than most companies.  We believe that charge trapping will become the standard process for all flash at processes below 25nm.  Charge trapping is the simplest way to overcome the difficulties caused by the shrinking number of electrons per gate as processes shrink,'' Handy said.




resistion

9/2/2010 9:49 PM EDT

It doesn't look good.

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BalaLak

9/3/2010 1:16 AM EDT

NAND Flash has always been used in the consumer market and there's no use making an older technology device in this market. Only for industrial & military applications where the lifespan of a product is 10 years or more, it makes sense to continue to make older tech devices. Also, NAND inclusion in computers can never slow down DRAM growth - unless NAND flash supports 'in-place execute' which it does not.

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Erick2009

9/3/2010 2:57 AM EDT

Elpida and Spansion are talking of charge trap technology which is pretty new for the NAND supplier. current NAND suppliers are on the floating gate which has difficulty scaling beyond 25nm. I see this as a good move if executed well and products come to the market fast.

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goafrit

9/4/2010 8:26 AM EDT

I agree with you 100%

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3D Guy

9/3/2010 2:39 PM EDT

I believe Spansion and Elpida can be really successful if they move away from Mirror-bit and use F-N tunneling for program-erase like the FG-NAND guys do (and then do 3D NAND flash).

The reason for my optimism is this:
- Charge trapping is indeed a viable path for giving lower cost per bit for NAND, mainly because it enables complex 3D NAND architectures.
- It is, however, a very tough technology to master and manufacture. Spansion has done great work actually building products with charge trap technology (albeit for NOR). This needed careful optimization of dielectrics and reliability. All this knowledge will be invaluable for 3D NAND.
- While the standard NAND IP space is heavily saturated, 3D NAND IP is still up for grabs. If Spansion and Elpida focus on 3D NAND with charge trap technology, their existing know-how on charge trapping will enable them to compete with and have an advantage over today's NAND manufacturers in that exciting new area.

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greenpattern

9/4/2010 10:14 AM EDT

IM and Tosiba/Sandisk have been trying to extend floating gate forever. CTF is complicated, requires engineering of the band structure of the trapping layer and trades off the retention vs window. Samsung introduced TANOS but maybe they'll give it up?

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mark.lapedus

9/7/2010 1:29 AM EDT

Elpida and Spansion are niche players in NAND. They are small fish in a big pond

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