Abstract
Lube-surfing recording combined with thermal fly-height control (TFC) technology is considered as a promising head-disk interface (HDI) scheme for further increasing magnetic areal density to 5–10 Tbits/in2. To realize this alternative technology, however, a lot of tricky issues are required to be solved. Among them, how to characterize the flying of slider in the lubricant or light lube-contact by the slider is probably one of the tough but inevitable challenges. In this study, the slider/lubricant/disk contact induced tribo-current is investigated with a modified media-tester in which the TFC slider is electrically isolated with the rest of the tester. The measured tribo-currents versus the heater voltages or the powers to the slider’s heater clearly indicate three different intensity regions of tribo-current, by which the three different contact types, namely, non-contact, lube-contact and solid-contact can be differentiated clearly. This method provides a promising way for accurately studying of lube-surfing recording.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Canchi SV, Bogy DB (2010) Slider dynamics in the lubricant-contact regime. IEEE Trans Magn 46(3):764–769
Feng Z, Shih C, Gubbi V, Poon F (1999) A study of tribo-charge/emission at the head-disk interface. J Appl Phys 85(8):5615–5617
Kiely JD, Hsia YT (2002) Tribocharging of the magnetic hard disk drive head-disk interface. J Appl Phys 91(7):4631–4636
Knigge BE, Mate CM, Ruiz O, Baumgart PM (2004) Influence of contact potential on slider-disk spacing: simulation and experiment. IEEE Trans Magn 40(4):3165–3167
Liu B, Zhang M, Yu S, Hua W, Wong CH, Zhou W, Man Y, Gonzaga L, Ma Y (2008) Towards fly- and lubricant-contact recording. J MMM 320:3183–3188
Liu B, Zhang M, Yu S, Hua W, Ma Y, Zhou W, Gonzaga L, Man Y (2009) Lube-surfing recording and its feasibility exploration. IEEE Trans Magn 45(2):899–904
Man Y, Liu B, Ma Y, Sinha SK, Lim SC (2009) Slider-lubricant interaction and corresponding tribocurrent. IEEE Trans Magn 45(11):5069–5072
Meyer DW, Kupinski PE, Liu JC (1999) Slider with responsive transducer positioning. US Patent, No. 5, 991, 113
Singh GP, Knigge BE, Payne R, Wang R, Mate CM, Arnett PC, Davis C, Nayak V, Wu X, Schouterden K, Baumgart PM (2004) A novel wear-in-pad approach to minimizing spacing at the head/disk interface. IEEE Trans Magn 40(4):3148–3152
Talke FE (1997) A review of ‘contact recording’ technologies. Wear 207:118–121
Yeack-Scranton CE, Khanna VD, Etzold KF, Praino AP (1990) An active slider for practical contact recording. IEEE Trans Magn 26(5):2478–2483
Yu S, Liu B, Zhou W, Hua W, Gonzaga L (2009) Dynamic stability analysis for surfing head-disk interface. IEEE Trans Magn 45(11):4979–4983
Zhang M, Liu B, Hu S (2009) Reader as a contact detector. APL 94:241911_1-3
Zheng J, Bogy DB (2010) Investigation of flying-height stability of thermal fly-height control sliders in lubricant or solid contact with roughness. Tribol Lett 38:283–289
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Man, Y., Liu, B., Hu, S. et al. Characterization of slider-lubricant interaction with tribo-current. Microsyst Technol 17, 1003–1007 (2011). https://doi.org/10.1007/s00542-011-1247-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00542-011-1247-5