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Reducing the head-media spacing is of crucial importance in enabling future high density magnetic recording. Fly and lubricant contact interface, or surfing recording, is one of the possible interface solutions for 5 ~ 10 Tb/in2 of magnetic recording. One major challenge for surfing interface schemes is how to sustain the dynamic stability of the head disk interface (HDI). This paper explores the...
Fly and lubricant contact, or surfing recording, is one of interface solutions for 5~10 Tb/in2 of magnetic recording. One of major challenges for surfing schemes comes from how to sustain the dynamic stability of the head disk interface (HDI). This paper explores the mechanism of slider's dynamic stability in surfing on the lubricant by means of an analytical model including air bearings, surface...
It is proposed to overcome lube depletion problem in future hard disk drives by using vapor lubrication. The lube film formation process on disk surface in vapor lubrication is studied theoretically based on fundamental adsorption and desorption theories. The controlling parameters of lube film thickness and film formation time are identified. It is found that the lube film thickness is controlled...
The physics behind the lubricant transfer from disk to slider is explained based on the lubricant transfer model proposed by Marchon. The effects of some important parameters, such as slider air bearing pressure and its gradient on the lubricant transfer are also explained and involved in the calculations. The strategies of slider design to minimize the lubricant transfer are proposed.
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