Journal of the Korean Magnetics Society (한국자기학회지)

The Korean Magnetics Society (한국자기학회)
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Giant Magnetoresistive Sensors for High Density Information Storage Applications

거대자기저항 센서를 중심으로 본 고밀도 정보저장기기용 기록헤드기술의 현황과 전망

  • 김영근 (삼성전기주식회사 MR-HEAD 사업부) ;
  • 정인섭 (삼성전기주식회사 MR-HEAD 사업부) ;
  • 박태섭 (삼성전기주식회사 MR-HEAD 사업부)
  • Published : 1998.04.01
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Abstract

MR head technology from the perspective of read sensor evolution was reviewed. AMR sensors have been developed for last two decades and successfully employed into information storage devices such as disk drives. Development of manufacturable GMR sensors is of emerging technological interest because GMR sensors can further meet the need of ultrahigh recording density. In this review, the mechanisms, materials systems, operating principles of both AMR an GMR sensors, and the head structures were discuseed. Constructing GMR heads with ultrathin sensor materials and complex topographical structures demands unique fabrication and design challenges. The commercialization of GMR heads can only be realized by the succesful implementations of high performance materials, advanced thin film processes, and stable head design.

Keywords

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