정보저장시스템학회논문집 (Transactions of the Society of Information Storage Systems)

  • 제5권2호
  • /
  • Pages.70-75
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  • 2009
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  • 1738-6845(pISSN)
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  • 2288-2022(eISSN)
정보저장시스템학회 (The Society of Information Storage Systems)
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램프 틸트에 의한 언로드 특성 분석

Analysis of Unload Characteristics by Ramp Tilt

  • 발행 : 2009.09.25
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초록

Most hard disk drives uses load/unload technology because of benefits as like an increased areal density, a reduced power consumption and an improved shock resistance. However, ramp tilt induced by ramp manufacture and assembly causes mechanical problems such as unload fail in case of exceeding ramp tolerance. In this paper, we focus on experimental analysis for unloading characteristics affected by ramp tilt. We repeatedly perform load/unload test as 500,000 cycles for original model and ramp tilt model. This paper shows that it is possible to analyze unload characteristics through measuring scratch and wear of suspension lift-tab, ramp, suspension dimple-flexure and disk. We also identify structural relation between suspension lift-tab and ramp through scratch and wear of suspension lift-tab and ramp. As the result of measurement and analysis, we can investigate decrease of unloading performance in ramp tilt model.

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참고문헌

  1. K.H. Kim, Y. Lee, S. Kim, H. Yang, Y.P. Park, K.S. Park, J. Yoo and C.S. Kim, 2009, "Ramp Tolerance Analysis Considering Geometric Errors," IEEE Trans. Magn., vol. 45, no. 5, pp. 2284-2287. https://doi.org/10.1109/TMAG.2009.2016459
  2. N.S. Tambe and D. Bhushan, 2002, "Effect of load/unload process on friction/stiction and durability of head-disk interface," Microsys. Technol., vol. 8, pp. 409-418. https://doi.org/10.1007/s00542-002-0248-9
  3. B. Bhushan and N.S. Tambe, 2003, "Role of Particulate Contamination on Friction and Wear and Durability of Load/Unload nad Padded PicosIiders," IEEE Trans. Magn., vol. 39, no. 2, pp. 857-863. https://doi.org/10.1109/TMAG.2003.808940
  4. J.R. Yaeger, 2002, "Ramp Wear and Debris From Load/Unload Lift-Tab Roughness," IEEE Trans. Magn. Vol. 38, no. 5, pp. 2126-2128. https://doi.org/10.1109/TMAG.2002.802695
  5. Bo Liu and Yansheng Ma, 2003, "Visualization and Characterization of Slider-Disk Interactions in Dynamic Load/Unload Processes," IEEE Trans. Magn., vol. 39, no. 2, pp. 743-748. https://doi.org/10.1109/TMAG.2003.809007