Transactions of the Society of Information Storage Systems (정보저장시스템학회논문집)

The Society of Information Storage Systems (정보저장시스템학회)
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Analysis of Dynamic Touch-down and Take-off of HAMR Head

열 보조 자기기록 시스템 헤드의 touch-down 과 take-off 해석

  • Received : 2012.09.10
  • Accepted : 2012.09.21
  • Published : 2012.09.25
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Abstract

In HDD industry, many technologies have been developed and investigated as means to increase the areal density of drives. Especially, heat assisted magnetic recording (HAMR) system has been considered as the next generation storage device. Most of the HAMR systems use near field optics as heating mechanism. Therefore, light delivery system is indispensable. We considered the light delivery system with laser diode (LD) mount and optical fiber. Mass and stiffness of the HAMR system using these LD mount and optical fiber are changed. The mass and stiffness of the HAMR system affects the slider dynamic behavior. It is necessary to analyze touch down (TD) and take off (TO). And, we performed the TD-TO experiment with HAMR suspension. Finally, we analyzed the result of TD-TO experiments. And we suggested the design of HAMR suspension to improve TD-TO performance.

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References

  1. W. A. Challener, T. W. Mcdaniel, C. D. Mihalcea, K. R. Mountfield, K. Pelhos, et al. 2003, "Light delivery techniques for heat-assisted magnetic recording," Jpn. J. Appl. Phys., vol. 42 , pp. 981-988 https://doi.org/10.1143/JJAP.42.981
  2. M. A. Seigler, W. A. Challener, E. Gage, N. Gokemeijer, G. Ju, et al. 2008, "Integrated heat assisted magnetic recording head:design and recording demonstration," IEEE Trans. Magn., vol. 44, no. 1, pp. 119-124 https://doi.org/10.1109/TMAG.2007.911029
  3. K. Ono and K. Nakagawa, 2008, "Dynamic adhesion characteristics of spherical sliders colliding with stationary magnetic disks with a thin lubricant layer," Tribol lett, vol 31, no. 2, pp. 77-89 https://doi.org/10.1007/s11249-008-9340-3
  4. K. Ono, 2008, "Dynamic instability of flying head slider and stabilizing design for near-contact magnetic recording," Journal of magnetism and magnetic materials, vol. 320, issus 22, pp.3174-3182 https://doi.org/10.1016/j.jmmm.2008.08.079
  5. K.-H. Kim, S. Lee, S. Kim, Y. Lee, N.-C. Park, et al. , 2010, "Design of thermally-assisted magnetic recording suspension with optical fiber and v-groove prism considering touch-down characteristics," ISPS 10 Conference proceeding
  6. K.-H. Kim, S. Kim, N.-C. Park, Y.-P. Park and K.-S. Park, 2011, "Operating shock analysis of a thermally assisted magnetic recording head gimbal assembly considering the thermal effects during writing to record the data," IEEE Trans. Magn., vol. 47, no. 7, pp. 2005-2008 https://doi.org/10.1109/TMAG.2011.2128861
  7. K.-H. Kim, N.-C. Park, Y.-P. Park and K.-S. Park, "Tolerance analysis of the pitch static attitude of a thermally assisted magnetic recording system with an optical fiber and prism", 2011, IEEE Trans. Magn., vol. 47, no. 3, pp. 585-589 https://doi.org/10.1109/TMAG.2010.2100036
  8. K.-S. Park, K.-H. Kim, Y.-P. Park and N.-C. Park, "Investigation of the Dynamic Characteristics of Light Delivery for Thermal Assisted Magnetic Recording", 2011, IEEE Trans. Magn., vol. 47, no. 7, pp. 1992-1998 https://doi.org/10.1109/TMAG.2011.2134077