Abstract
The piezoelectric flying height control slider has recently been implemented in magnetic recording disk drives to reduce the flying height. This paper performs the electromechanical simulation and air-bearing simulation to investigate the effects of the shear-model deformation on the static flying attitude of PZT slider. The location of PZT sheet and air bearing surface of slider are investigated to achieve a low flying height and robust head-disk interface. The results show that a short distance of the PZT sheet to the trailing edge of the slider can help to achieve a low flying height. A small center-trailing pad of the slider can also help to achieve a low flying height, but cannot prevent the reduction in pitch angle. The depth of the center-trailing pad does not change the reduction ratio of the pitch angle when increasing the drive voltage. A big pitch angle value is needed to avoid the pitch angle falling below zero at a high drive voltage.
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Shen, S., Li, H., Liu, B. et al. Parametric simulation of piezoelectric flying height control slider using shear-mode deformation. Microsyst Technol 18, 1481–1486 (2012). https://doi.org/10.1007/s00542-012-1576-z
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DOI: https://doi.org/10.1007/s00542-012-1576-z