TDK records highest surface recording density of HDD

Last week Toshiba claimed the world's largest 1.8-inch hard drive with industry's highest areal density at 378Gbit/inch²; TDK has taken the new lead the announcement of 803Gbits/inch2 at CEATEC today. A technology would result in a single 1.8 inch double side disk of 260GB thanks to an improve TMP head.

The company uses the existing TMR head with perpendicular magnetic recording technology, the improvement was result from increased the magneto resistance ratio by more than 80% while keeping the bond resistance of the reproducing head's TMR element low. The researchers believe using the same TMR elements; they would able to achieve greater density of 1Tbit/inch2.