NaCL Could Lead to 6 Times Greater Storage Density

Written by John Ponio    Friday, 14 October 2011 15:05

Institute of Materials Research and Engineering Logo

Dr. Joel Yang and his research team have uncovered something magnificent: 3.3Tb/in2 storage density. That's right, 3 terabits per square inch. That's 5.28 times the current maximum of 625Gb/in2 that was used in Seagate's recently-released 4TB HD. So this advancement must use some crazy new technology, right? Wrong. The advancement comes from the use of Sodium Chloride, which is commonly known as table salt.

It’s like packing your clothes in your suitcase when you travel. The neater you pack them the more you can carry. In the same way, the team of scientists has used nanopatterning to closely pack more of the miniature structures that hold information in the form of bits, per unit area. Dr Joel Yang’s IMRE research team, working with peers  from A*STAR’s  [Singapore’s Agency for Science, Technology and Research] DSI [Data Storage Instituteand] NUS [National University of Singapor], has used nanopatterning to create uniform arrays of magnetic bits that can potentially store up to 3.3 Terabit/in2 of information, six times the recording density  of current devices. This means  that a  hard disk drive that holds 1 Terabyte (TB) of data  today could, in the future,  hold  6 TB of information in the same size using this new technology.

The salt is used in solution with the lithography to produce a smaller, more structured pattern that allows for greater data density on the platter of the hard drive. You can read more details in the release.