2532 マイクロ熱アクチュエータを搭載した浮上量調整スライダの開発(第2報)(S79-3 情報機器コンピュータメカニクス(3),S79 情報機器コンピュータメカニクス)

概要

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In order to realize ultra-low flying heights, magnetic spacing variations due to manufacturing tolerances, environmental variations, and write-induced thermal protrusion need to be reduced. To decrease the flying height, we have developed a thermal flying-height control (TFC) slider that carries a micro-thermal actuator. Using the device, the magnetic spacing of these sliders can be controlled in-situ during operation of the drive. First prototype had shown insufficient characteristics when evaluated at a component-level prototype. Therefore, the purpose of this research is to verify drive-level feasibility and better actuator characteristics. After analytical design by simulation of heat transfer and thermal deformation, second type of TFC device was fabricated. Component level evaluation showed sufficient actuator characteristics that met the requirements leading to the development of drives with controllable flying-height sliders. Drive level evaluation showed its effectiveness in reducing the magnetic spacing.
社団法人日本機械学会の論文
2005-09-18