Rounded-edge 슬라이더를 이용한 하드디스크의 표면 스크래치 저감에 관한 연구

Study on Scratch Reduction of HDD using Rounded-edge Slider

  • 신일섭 (연세대학교 기계공학과) ;
  • 김영태 (연세대학교 기계공학과) ;
  • 한제희 (연세대학교 기계공학과) ;
  • 김대은 (연세대학교 기계공학과) ;
  • 강태식 (삼성전자 스토리지 사업부)
  • 발행 : 2006.09.01

초록

In recent years the flying height of the head/slider has been decreasing in order to increase the recording density of hard disk drive (HDD). Accordingly, it was predicted that direct contact between slider and disk surface (slider slap) can cause defects on the disk such as scratch and particle generation. In this work, we theoretically demonstrate the effect of rounded-edge slider using Hertzian contact theory. Depth and width of scratch were predicted by plowing model. Furthermore, as we fabricated rounded-edge slider, rounded-edge slider was tested and compared with sharp-edge slider. The experimental results show rounded-edge was effective for reducing scratch depth.

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