Hitachi perpendicular GMR drive heads to yield terabit drives

Hitachi have developed a new current perpendicular-to-the-plane giant magneto-resistive head (CPP-GMR) which will allow drive makers to develop up to 4 terabyte computer drives by 2011 and/or 1 terabyte notebook drives.

The CPP-GMR heads will be capable of reading media where the tracks are 50 nanometers apart or smaller. Fifty nanometer tracks hit in 2009, and 30 nanometer tracks are expected to hit in 2011.

See news.com.