정보저장시스템학회:학술대회논문집

The Society of Information Storage Systems (정보저장시스템학회)
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Study on the Effect of Particles Injected Into the Head/Disk Interface

헤드-디스크 인터페이스에 주입되는 입자의 영향에 대한 연구

  • 한제희 (연세대학교 대학원 기계공학과) ;
  • 이래준 (연세대학교 대학원 기계공학과) ;
  • 김대은 (연세대학교 기계공학부) ;
  • 강태식 (삼성전자 스토리지 사업부) ;
  • 조긍연 (삼성전자 스토리지 사업부)
  • Published : 2005.10.01
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Abstract

Particles in the HDD can cause serious damages such as scratches and thermal asperity(TA) at the head/disk interface(HDI). Accordingly, particles cause data loss including physical and electrical damages. To improve the reliability of head-disk interface, understanding the damage characteristics at the HDI due to particle interactions is required. The materials such as $A1_2O_3$, TiC and aluminum were used in this experiment. The size and hardness of particles injected into the HDI are closely relevant to surface damage caused the data loss on the disk and head. In this paper, a variety of scratches were analyzed using scanning electron microscope(SEM) and atomic force microscope(AFM). In order to analyze defects of very small size on the disk, optical surface analyzer(OSA) was also used.

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