Intel and Micron announced the development of 3-bit-per-cell MLC NAND flash memory made on a 34nm process. This new type of flash memory offers more storage capacity than MLC NAND, which features a storage density of 2-bits-per-cell. The new 3bpc MLC NAND chips enable the creation of 32Gb chips that will initially be used in memory cards and USB flash memory drives, but the technology will not yet be used in solid state disks due to endurance issues.
Designed and manufactured by IM Flash Technologies (IMFT), their NAND flash joint venture, the new 3bpc NAND technology produces the industry’s smallest and most cost-effective 32-gigabit (Gb) chip that is currently available on the market. The 32Gb 3bpc NAND chip is 126mm². Micron is currently sampling and will be in mass production in the fourth quarter 2009. With the companies’ continuing to focus on the next process shrink, 3bpc NAND technology is an important piece of their product strategy and is an effective approach in serving key market segments.
“We see 3bpc NAND technology as an important piece of our roadmap,” said Brian Shirley, vice president of Micron’s memory group. “We also continue to move forward on further shrinks in NAND that will provide our customers with a world-leading portfolio of products for many years to come. Today’s announcement further highlights that Micron and Intel have made great strides in 34-nanometer NAND, and we look forward to introducing our 2xnm technology later this year.”
“The move to 3bpc is yet another proof point to the remarkable progress Intel and Micron have made in 34-nm NAND development,” said Randy Wilhelm, Intel vice president and general manager, Intel NAND Solutions Group. “This milestone sets the stage for continued silicon leadership on 2xnm process that will help decrease costs and increase the capabilities of our NAND solutions for our customers.”
The following video from Micron explains the differences between SLC, MLC, and 3-bit MLC NAND: