IBM is working on hard drives with 400 GByte
IBM has started to develop hard drives with a storage capacity of up to 400 GB with a new technology called 'Pixie Dust'. With the new technology, the main focus is on the precious metal ruthenium, which is only three atoms thick and is used as an AFC medium (Antiferromagnetically Coupled) between two magnetic storage layers In 2003 a data density of 100 GBits per square inch can be achieved, which can be compared with a PC hard drive of 400 GByte or a notebook hard drive of 200 GByte. With this technology, IBM can double the capacity of the hard drives at very little additional cost. The first model with AFC is scheduled to hit the market as early as June. It is a member of the portable 'Travelstar' family. In the first models with 'Pixie Dust' technology, however, IBM only achieved a storage density of 25.7 Gbit per square inch. Other manufacturers will probably follow suit and in future also use AFC for their hard drives.