Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2001.11a
  • /
  • Pages.58-64
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  • 2001
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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TMR Contribution Analysis of Spindle-Disk System Vibration for the High-Density Hard Disk Drive of 80GB／Platter

80GB／PLATTER 하드 디스크 드라이브 설계를 위한 스핀들-디스크 시스템 진동의 TMR 기여도 분석

  • 강성우 (삼성종합기술원 Storage Lab.) ;
  • 한윤식 (삼성종합기술원 Storage Lab) ;
  • 오동호 (삼성종합기술원 Storage Lab) ;
  • 황태연 (삼성종합기술원 Storage Lab) ;
  • 김명업 (삼성종합기술원 Storage Lab.)
  • Published : 2001.11.01
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Abstract

An investigation of the TMR(Track Misregistration) requirements to achieve the capacity of 80GBytes／Platter in 7200rpm disk drive system is reported. This paper also gives an overview of the PES(Position Error Signal) characteristics in the 57,500TPI disk drive to estimate the required 95,000TPI-system PES. The TMR measured by PES are presented and decomposed in order to identify the portions and their contributions of the spindle-disk system vibration and HSA(Head-Stack-Assembly) system vibration respectively. A comprehensive review on the servo system is also presented to provide the practical limits of the modem servo architecture into TMR budget design. The decomposed PES energy distribution shows that the spindle-disk pack vibration is one of the top-ranking sources of the total TMR budget and its percentage contribution is about 50％ considering all the other TMR sources.

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