Load/Unload Systems With Multiple Flying Height States

[+] Author and Article Information
M. Suk, O. Ruiz, D. Gillis

Storage Technology Division, International Business Machines, 5600 Cottle Road, San Jose, CA 95193

J. Tribol 126(2), 367-371 (Apr 19, 2004) (5 pages) doi:10.1115/1.1576426 History: Received March 13, 2002; Revised October 08, 2002; Online April 19, 2004
Copyright © 2003 by ASME
Topics: Stress , Disks
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Suk, M., and Albrecht, T., 2002, “Evolution of Load/Unload Technology,” Microsystem Technologies-MEMS, Systems for Information Storage & Processing, 9 (4), pp. 256–265.
Zeng,  Q. H., and Bogy,  D. B., 2000, “Simplified 4-DOF Suspension Model for Dynamic Load/Unload Simulation and Its Application,” ASME J. Tribol., 122(1), pp. 274–279.
Zeng,  Q. H., and Bogy,  D. B., 2000, “Effects of Certain Design Parameters on Load/Unload Performance,” IEEE Trans. Magn., 36(11), pp. 140–147.
Bogy,  D. B., and Zeng,  Q. H., 2000, “Design and Operating Conditions for Reliable Load/Unload Systems,” Tribol. Int., 33(5–6), pp. 357–366.
Liu,  B., and Zhu,  L. Y., 2001, “Experimental Study on Head Disk Interaction in Ramp Loading Process,” IEEE Trans. Magn., 37(4), pp. 1809–1813.
Hua,  W., Liu,  B., Sheng,  G., and Li,  J., 2001, “Further Studies of Unload Process with a 9D Model,” IEEE Trans. Magn., 37(4), pp. 1855–1858.
Weissner,  S., and Talke,  F. E., 2000, “Load/Unload Measurements Using Laser-Doppler Vibrometry and Acoustic Emission,” Tribol. Int., 33(5–6), pp. 367–372.
Li,  Y., and Sharma,  V., 1998, “Correlation Study Among Various CSS Testers,” Tribol. Trans., 41(4), pp. 525–530.
Suk,  M., and Gillis,  D., 1998, “Effect of Slider Burnish on Disk Damage During Dynamic Load/Unload,” ASME J. Tribol., 120(2), pp. 332–338.
Ikeda,  H., and Hirose,  S., 1999, “Development of Measurement System Using Laser Interferometers for Measuring Transient Behavior of Magnetic Head Sliders,” Trans. Jpn. Soc. Mech. Eng., Ser. C, 62(601), pp. 3406–3412.


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A typical negative pressure slider used in simulation and experiments
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Multiple flying height states showing critical pre-load level for different PSA
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Dynamic load history compared to bi-stable states static solution. Jump to the lower state occurs after critical level is attained
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Spacing evolution during loading for various PSAs showing jump to lower state
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Pitch evolution during loading for various PSAs showing negative pitching during the jump from HFHS to NFHS
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Air-bearing forces acting on the slider during loading for various PSAs
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Relationship between critical PSA and pre-load
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Critical PSA value as a function of radial location
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Full transition of one load/unload cycle for a slider that initially loads at the high flying height state as measured by full body capacitance
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Change in the TE spacing as the slider changes from high flying state to low flying state
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Unload dynamics from high flying and low flying states



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