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Hitachi to squeeze 4GB in 1-inch HDD

Posted: 08 Jan 2003 ?? ?Print Version ?Bookmark and Share

Keywords:hitachi global storage technologies? microdriver? hard disk drive? 4gb hdd? portable device hdd?

Hitachi Global Storage Technologies has announced its plans to squeeze 4GB of data onto their 1-inch Microdrive product. The 4GB Microdrive is expected to be available in the Fall of 2003. Hitachi currently offers the Microdrive in capacities ranging from 340MB to 1GB.

The new drive is expected to use ultra-miniaturized components including a new R/W head, called the femto slider head, which is half the size of its predecessor and results in a 40 percent decrease in the height at which the head travels above the disk platter.

Engineers have also increased the tracks per inch to accommodate the Microdrive's areal density of more than 60 billion bits of data per square inch. This areal density is achieved through the use of a new five-layer version of the company's "Pixie Dust" media technology where a three-atom-thick layer of ruthenium is sandwiched between three magnetic layers. Technically referred to as antiferromagnetically coupled media, the ruthenium/magnetic layers enable data recording at ultra-high densities while maintaining data integrity.

Other significant technical achievements include a data transfer rate increase that represents a 50 percent improvement from the previous-generation Microdrive.

The 4GB Microdrive is designed to the CompactFlash Type II industry standard and is targeted at handheld devices and other consumer electronic devices. Already, Hewlett-Packard and Eastman-Kodak are evaluating the device for integration into their products.





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