Toshiba's already used the technology the develop what it claims is the world's smallest 2-bit-per-cell 64Gb NAND memory chips, which measure a scant 94 square millimeters in size. That's a 25 percent reduction over previous technology. Though small in size, the chips are capable of writing 25 megabytes of data per second, the world's fastest class in 2-bit-per-cell territory, according to Toshiba.
The company said it's also working on 3-bit-per-cell chips using the same process technology and hopes to start mass producing those parts in the second quarter of this fiscal year. These new multi-level cell (MLC) parts will initially be introduced for smartphones and tablets via a special controller compatible with eMMC. Eventually Toshiba wants to extend the memory's application to notebook PCs, though it will first have to develop a compliant solid state drive (SSD) controller.