Effect of slider load on the wear debris contamination tendency of head/slider

Kum Hwan Cha, Koo Hyun Chung, Dae Eun Kim

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Abstract

Head contamination is a serious problem that must be avoided for high reliability. It has been previously reported that the wear debris contamination behavior of head/slider varies as the flying height of the slider is lowered. The emphasis of this paper is on identifying the trend . of wear debris contamination on the air bearing surface of a slider due to contact with the disk. The surface damage effect of the slider was accelerated by conducting sliding tests in drag conditions. It was found that for a wide range of effective slider load, the wear debris tend to accumulate near the edges of the air bearing features on the slider surface. As a means to prevent the head from being contaminated by wear debris, the use of micro-grooved surface is proposed. The effectiveness of micro-grooves on a silicon surface in trapping wear particles is demonstrated. Hence, grooves may be used strategically on the slider air bearing surface to develop contamination-free sliders.

Original languageEnglish
Pages (from-to)2355-2357
Number of pages3
JournalIEEE Transactions on Magnetics
Volume35
Issue number5 PART 1
DOIs
Publication statusPublished - 1999 Dec 1

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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