Samsung Unveils 20nm NAND Flash Memory Chips

Submitted by lalit on April 19, 2010 - 8:37pm.

Samsung, the world’s largest memory chip maker, today unveiled industry’s first NAND flash memory chips based on 20 nanometer process technology. The 32-gigabit (Gb) MLC NAND chip will be used in Secure Digital (SD) cards and embedded memory solutions.

Mr. Soo-In Cho, president of Memory Division at Samsung Electronics said, "In just one year after initiating 30nm-class NAND production, Samsung has made available the next generation node 20nm-class NAND, which exceeds most customers requirements for high-performance, high-density NAND-based solutions." He added, "The new 20nm-class NAND is not only a significant step forward in process design, but we have incorporated advanced technologies into it to enable substantial performance innovation."

Samsung's 20nm-class MLC NAND has a 50 percent higher productivity level than 30nm-class MLC NAND. The write performance of a 20nm-class-based, eight gigabyte (GB) and higher density, SD card is 30 percent faster than the 30nm-class NAND and it delivers a speed-class rating of 10 (read speed of 20MB/s, write speed of 10MB/s). By applying cutting-edge process, design and controller technology, Samsung also has secured reliability levels comparable to 30nm-class NAND.

Samsung is shipping SD card samples to customers that are built with 20nm-class 32Gb NAND and will expand production later this year. Memory cards based on the 20nm class will be available from 4GB through 64GB densities.