한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)

한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

스크래치 테스터의 Ramp Loading 방법을 이용한 하드디스크의 표면 스크래치 특성에 관한 연구

Study on Surface Scratch Characteristics of Hard Disk by Ramp Loading Method Using a Scratch Tester

  • 이래준 (연세대 대학원 기계공학과) ;
  • 김대은 (연세대 기계공학부) ;
  • 강태식 (삼성전자 스토리지 사업부) ;
  • 조용범 (삼성전자 스토리지 사업부) ;
  • 조긍연 (삼성전자 스토리지 사업부)
  • Lee R.J. (Dept. of Mechanical Eng., Graduate School of Yonsei University) ;
  • Kim D.E. (Dept. of Mechanical Eng., Yonsei University) ;
  • Kang T.S. (Storage System Division, Samsung Electronics Co., LTD) ;
  • Cho Y.B. (Storage System Division, Samsung Electronics Co., LTD) ;
  • Cho K.Y. (Storage System Division, Samsung Electronics Co., LTD)
  • 발행 : 2005.10.01
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초록

In order to get the surface characteristics of the HDI of HDD, the surface damage mechanisms must be totally understood. Particle contamination in hard disk drives is a big concern in today's magnetic recording industry since they are major sources of reliability problems. Namely upon contact with the slider or a contaminant particle, the disk may be scratched or the particles may be embedded into the disk surface. In this work, comparison of scratches was made between those found on actual hard disks and those created using a scratch tester. It was found that ramp loading method is an effective way to make similar scratches as the actual ones. From the ramp loading condition, the relationship between the pressure and the scratch track width could be identified.

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