Head and Interface for High Areal Density Tape Recording

A tape recording head in which reading and writing functions are provided by separate modules is presented. The read-only module may be fabricated with a thinner gap than conventional read-write modules. This was shown to provide >; 40% less gap recession in a controlled wear test. Writing module...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2012-11, Vol.48 (11), p.4463-4466
Main Authors: Biskeborn, Robert G., Jubert, Pierre-Olivier, Liang, Jason, Lo, Calvin
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Head
Head-media spacing
Magnetic heads
Magnetic recording
Magnetism
Materials science
Media
media signal-to-noise
Other topics in materials science
Physics
Signal to noise ratio
tape recording head
Transducers
Writing
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Description
Summary:A tape recording head in which reading and writing functions are provided by separate modules is presented. The read-only module may be fabricated with a thinner gap than conventional read-write modules. This was shown to provide >; 40% less gap recession in a controlled wear test. Writing modules are configured to contact tape in one tape motion direction only, thus reducing the wear duty cycle twofold. Modeling indicates that broadband signal-to-noise ratio decline due to wear can be up to several dB less for the separated reading-writing head, which therefore may enable advances in linear and thus areal density.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2012.2196506