Toshiba Corporation and SanDiskŪ Corporation (NASDAQ:SNDK) today announced an 8-gigabit (Gb) NAND flash memory chip fabricated with 70-nanometer (nm) process technology that ushers in the new era of gigabyte chips: 1-gigabyte data storage capacity on a single chip. The new chip was today reported at the International Solid-State Circuits Conference (ISSCC) 2005 in San Francisco.