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TECHNICAL PAPERS

A Numerical Study of Air-Bearing Slider Form-Factors

[+] Author and Article Information
Brian H. Thornton, David B. Bogy

Computer Mechanics Laboratory, 5129 Etcheverry Hall, Department of Mechanical Engineering, University of California, Berkeley, CA 94720

J. Tribol 126(3), 553-558 (Jun 28, 2004) (6 pages) doi:10.1115/1.1691435 History: Received October 16, 2002; Revised July 11, 2003; Online June 28, 2004
Copyright © 2004 by ASME
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References

Mee, C. D., and Daniel, E. D., 1990, Magnetic Recording Handbook: Technology and Applications, McGraw-Hill, Inc., New York, pp. 450–528.
Wood,  R., 2000, “The Feasibility of Magnetic Recording at 1 Terabit per Square Inch,” IEEE Trans. Magn., 36(1), pp. 36–42.
Thornton,  B. H., Nayak,  A., and Bogy,  D. B., “Flying Height Modulation Due to Disk Waviness of Sub-5 nm Flying Height Air Bearing Sliders,” ASME J. Tribol., 124, pp. 762–770.
Thornton,  B. H., Bogy,  D. B., and Bhatia,  C. S., 2002, “The Effects of Disk Morphology on Flying Height Modulation: Experiment and Simulation,” IEEE Trans. Magn., 38(1), pp. 107–111.
Zhu, L.-Y., Bogy, D. B., 1989, “Head-Disk Spacing Fluctuation due to Disk Topography in Magnetic Recording Hard Disk Files,” Tribology and Mechanics of Magnetic Storage Systems, STLE Special Publication, SP-26, pp. 160–167.
Zeng,  Q. H., and Bogy,  D. B., 1999, “Stiffness and Damping Evaluation of Air Bearing Sliders and New Designs with High Damping,” ASME J. Tribol., 121, 341–347.
Hu,  Y., and Bogy,  D. B., 1997, “Flying Characteristics of a Slider over Textured Surface Disks,” IEEE Trans. Magn., 33(5), pp. 3196–3198.
White,  J. W., 1991, “The Transverse Pressure Contour Slider: Flying Characteristics and Comparisons with Taper-Flat and Cross-Cut Type Sliders,” Adv. Inf. Storage Syst., 3, pp. 1–14.
White, J. W., 1987, “Dynamic Response of the Transverse Pressure Contour Slider,” Tribology and Mechanics of Magnetic Storage Systems, STLE Special Publication, SP-22, pp. 72–82.
Tanaka,  H., Yonemura,  S., and Tokisue,  H., 2001, “Slider Dynamics During Continuous Contact with Textured and Smooth Disks in Ultra Low Flying Height,” IEEE Trans. Magn., 37(2), pp. 906–911.

Figures

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Air bearing surface designs: (a) ABS I; and (b) ABS II
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Pressure profile generated by (a) ABS I, and (b) ABS II
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Model frequencies and damping ratios of the ABS I designs for the pico and femto form-factors
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Modal frequencies and damping ratios of the ABS II designs for the pico and femto form-factors
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FHM ratio or gain for the ABS I design ABS’s as a function of disk waviness wavelength
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FHM ratio or gain for the ABS II design ABS’s as a function of disk waviness wavelength
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FHM ratio or gain for the ABS I and ABS II ABS’s as a function of disk waviness wavelength
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The ratio of FHM ratios of the slider form-factors for the ABS I designs
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The ratio of FHM ratios of the slider form-factors for the ABS II designs
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Disk and slider displacement for ABS I in the pico form-factor for a disk waviness wavelength of 0.625 mm
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Slider design comparison of the FHM ratios for the pico form-factor with a measured disk topography overlaid
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Slider design comparison of the FHM ratios for the femto form-factor with a measured disk topography overlaid

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