Samsung has built a 64Gb NAND flash memory chip which uses 30-nanometre processing technology and was developed using Samsung's SaDPT (self-aligned double patterning technology).

The company said it plans to start manufacturing 30-nanometre 64Gb NAND flash devices during 2009. Samsung has already applied for as many as 30 patents for the new flash memory chip, officials said.

By combining a total of 16 separate 64Gb flash devices, businesses can create a 128GB flash storage device capable of holding up to 80 DVD movies or 32,000 MP3 music files, noted Samsung. The breakthrough could boost iPhone and iPod capacities significantly.

While some analysts have forecasted of somewhat sluggish NAND demand in 2007-2008, Gartner has predicted that sales of 64Gb NAND flash and other higher density flash storage devices could reach $20bn by 2011.

Samsung said that its new double-pattern technology creates a wider-spaced circuit design of the target process in the first pattern transfer, and fills in the spaced area more closely with its second pattern transfer on the chip.