Approaches to 10 Gbit/in.2 recording (invited)

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  • M. H. Kryder
    Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-3890
  • W. Messner
    Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-3890
  • L. R. Carley
    Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-3890

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<jats:p>The areal density of manufactured magnetic disk drives is currently advancing at a rate of about 60% per year. Assuming this continues, an areal density of 10 Gbit/in.2 will be reached sometime shortly after year 2000. In this paper, the characteristics of a disk drive with 10 Gbit/in.2 density and the requirements that such an areal density places upon the component technologies necessary to make such a drive possible are discussed. It is projected that smooth, high coercivity and fine grain media, high moment thin film write heads, spin-valve read heads, advanced signal processing techniques, and improved servo systems will make it possible to achieve this goal using flying heads and longitudinal recording.</jats:p>

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