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Samsung's 2Gb 60nm chips
Shrinking NAND from the 70nm to the 60nm node in less than 4 months

Samsung today announced its first 60nm NAND product, 2Gb OneNAND chips.  The new chips have a sustained read capability of 108MB/sec with a sustained write capability of 17MB/sec.  Furthermore, the write performance can be increased even further "up to 136MByte per second when eight of the 2Gb memory chips are combined" according to Samsung's Memory & LCD Public Relations Manager John Lucas.

In April Samsung Semiconductor announced its first 70nm OneNAND products, but the shrink to the 60nm node also bumps the write speed from the 9.3MB/sec on the old OneNAND to 17MB/sec on the new NAND.  This is primarily due to the fact that 70nm OneNAND had a maximum density of 1Gb per chip, while the 60nm product can hold 2Gb per chip.  As Lucas had stated, the increased density improves write speed.

”We’re seeing a rapidly widening market for our OneNAND memory because of its outstanding performance and capacity that has become even more noteworthy with the application of 60 nm technology,” claimed Don Barnetson, Director of Flash Marketing SSI. 

NAND Operating Speeds

NOR Flash
NAND Flash
70nm
OneNAND

60nm
OneNAND
Sustained Read
256MB/sec

27MB/sec
108MB/sec

108MB/sec
Sustained Write
0.5MB/sec

13MB/sec
9.3MB/sec

17MB/sec

The 60nm OneNAND chips will show up in virtually any application where the old OneNAND chips were used, but the company specifically emphasizes the chips will play an integral role in hybrid and SSD hard drives, such as the many devices that were recently announced with NAND storage capabilities.




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