Planarization of Discrete Track Recording Media to Improve Flyability of Magnetic Recording Sliders

Y. Yoon,C. Choi,Y. Oh, D. Hong,S. Jin,F. E. Talke

Magnetics, IEEE Transactions（2009）

引用 6|浏览5

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摘要

Discrete track recording (DTR) media which consist of discrete tracks are presently considered a new paradigm to achieve ultra-high areal density in hard disk drives (HDDs). However, due to the presence of the grooves, stable flying of magnetic recording sliders over DTR media is a question of great concern. In this study, planarization of DTR media with hydrogen silsesquioxane (HSQ), a nonmagnetic material, is investigated. Scanning electron microscopy (SEM) of planarized disks showed very good ldquogap fillingrdquo properties of HSQ in the groove area during the planarization process. Atomic force microscopy (AFM) measurements indicated that the residual groove depth of planarized DTR media decreases with decreasing rotating speed of the disk during spin-coating. Improved flyability of magnetic recording sliders over DTR media was observed after planarization.

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关键词

atomic force microscopy,afm,head-disk interface,spin-coating,planarized disks,gap filling,rotating speed,residual groove depth,disc drives,nonmagnetic material,planarization,discrete track recording (dtr),patterned media,magnetic recording sliders,ultrahigh areal density,sem,scanning electron microscopy,planarisation,hydrogen silsesquioxane,hard disk drives,hdd,discrete track recording media,hard discs,magnetic properties,spin coating,hydrogen,magnetic materials

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