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Scaling tape-recording areal densities to 100 Gbit/in2
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by A. Argumedo,
D. Berman,
R. Biskeborn,
G. Cherubini,
R. D. Cideciyan,
E. Eleftheriou,
W. Häberle,
D. Hellman,
R. Hutchins,
W. Imaino,
J. Jelitto,
K. Judd,
P.-O. Jubert,
M. Lantz,
G. M. McClelland,
T. Mittelholzer,
S. Narayan,
S. Ölçer,
and P. J. Seger
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We examine the issue of scaling magnetic tape recording to higher areal densities, focusing on the challenges of achieving 100 Gbit/in2 in the linear tape format. The current highest achieved areal density demonstrations of 6.7 Gbit/in2 in the linear tape and 23.0 Gbit/in2 in the helical scan format provide a reference for this assessment. We argue that controlling the head-tape interaction is key to achieving high linear density, whereas track-following and reel-to-reel servomechanisms as well as transverse dimensional stability are key for achieving high track density. We envision that advancements in media, data-detection techniques, reel-to-reel control, and lateral motion control will enable much higher areal densities. An achievable goal is a linear density of 800 kbit/in and a track pitch of 0.2 μm, resulting in an areal density of 100 Gbit/in2.
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