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Samsung Electronics said Monday it has started mass-production of 4Gb NAND flash memory using 70-nanometer technology, while its new production line for 300 mm wafers went into operation the same day.
The 4Gb NAND flash -- which has the highest density in the market -- uses SLC (single level cells) measuring 0.025 square micrometers, the smallest in the business and 1/314,000 of a grown person’s hair, which store a single data per cell.
Samsung also started a 300 mm wafer production line exclusive for flash memory, whose first output were 4,000 of 90-nanometer 2Gb flash memory, with the new 4Gb 70-nanometer devices being made there from next month as well.
The company says the 300 mm wafers - large plates from which individual chips and circuits are cut -- are 2.25 times more productive than the former 200 mm types, and 70-nanometer technology has a 65 percent advantage over 90-nanometer technology.
NAND flash is the most popular digital storage for mobile devices such as cell phones, MP3 players, digital cameras, memory cards, USB memory and game systems. This year the market is expected to be worth $8 billion, growing to $13 billion by 2008. According to Dataquest, Samsung Electronics held a leading 44.4 percent share of the NAND flash market in 2002, and 54 percent last year.
(englishnews@chosun.com )
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