KR101797605B1 - 신뢰성 있는 기입성 및 삭제성을 가진 자기 기록 매체 - Google Patents

신뢰성 있는 기입성 및 삭제성을 가진 자기 기록 매체 Download PDF

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Publication number
KR101797605B1
KR101797605B1 KR1020127007094A KR20127007094A KR101797605B1 KR 101797605 B1 KR101797605 B1 KR 101797605B1 KR 1020127007094 A KR1020127007094 A KR 1020127007094A KR 20127007094 A KR20127007094 A KR 20127007094A KR 101797605 B1 KR101797605 B1 KR 101797605B1
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South Korea
Prior art keywords
layer
soft magnetic
magnetic
thickness
magnetic layer
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Expired - Fee Related
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KR1020127007094A
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English (en)
Korean (ko)
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KR20120062801A (ko
Inventor
토마스 피. 놀란
보그단 에프. 발쿠
리 탕
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시게이트 테크놀로지 엘엘씨
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Publication of KR20120062801A publication Critical patent/KR20120062801A/ko
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/676—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer
    • G11B5/678—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer having three or more magnetic layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0026—Pulse recording
    • G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
KR1020127007094A 2009-08-19 2010-08-19 신뢰성 있는 기입성 및 삭제성을 가진 자기 기록 매체 Expired - Fee Related KR101797605B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/544,091 2009-08-19
US12/544,091 US9972352B2 (en) 2009-08-19 2009-08-19 Antiferromagnetic coupling layers
PCT/US2010/046010 WO2011066007A1 (en) 2009-08-19 2010-08-19 Magnetic recording media with reliable writability and erasure

Publications (2)

Publication Number Publication Date
KR20120062801A KR20120062801A (ko) 2012-06-14
KR101797605B1 true KR101797605B1 (ko) 2017-11-15

Family

ID=43605193

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020127007094A Expired - Fee Related KR101797605B1 (ko) 2009-08-19 2010-08-19 신뢰성 있는 기입성 및 삭제성을 가진 자기 기록 매체

Country Status (6)

Country Link
US (1) US9972352B2 (enExample)
JP (2) JP5795763B2 (enExample)
KR (1) KR101797605B1 (enExample)
CN (1) CN102498516B (enExample)
SG (2) SG10201404984QA (enExample)
WO (1) WO2011066007A1 (enExample)

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US7901802B2 (en) * 2006-03-15 2011-03-08 Seagate Technology Llc Magnetic recording medium for perpendicular magnetic recording
US9165625B2 (en) * 2008-10-30 2015-10-20 Seagate Technology Llc ST-RAM cells with perpendicular anisotropy
US20130241542A1 (en) * 2012-03-14 2013-09-19 Wolfgang Raberg Xmr monocell sensors, systems and methods
US9431045B1 (en) 2014-04-25 2016-08-30 WD Media, LLC Magnetic seed layer used with an unbalanced soft underlayer
US9245564B2 (en) * 2014-04-29 2016-01-26 HGST Netherlands B.V. Soft underlayer having a multilayer structure for high areal density perpendicular recording media

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020127433A1 (en) 2000-12-28 2002-09-12 Showa Denko K.K. Magnetic recording medium, method of producing the same and magnetic recording and reproducing device

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US5580667A (en) * 1992-06-30 1996-12-03 Hmt Technology Corporation Multilayered medium with gradient isolation layer
US5792564A (en) * 1993-03-10 1998-08-11 Kabushiki Kaisha Toshiba Perpendicular recording medium and magnetic recording apparatus
KR100631355B1 (ko) * 1998-10-12 2006-10-09 후지쯔 가부시끼가이샤 자기 센서, 자기 헤드, 하드 디스크 장치, 및 디스크 어레이 장치
KR100679094B1 (ko) * 1999-10-08 2007-02-05 엘지.필립스 엘시디 주식회사 백라이트 유닛
JP2001250223A (ja) * 1999-12-28 2001-09-14 Mitsubishi Chemicals Corp 磁気記録媒体及び磁気記録装置
JP2001291210A (ja) * 2000-04-03 2001-10-19 Alps Electric Co Ltd 薄膜磁気ヘッド
US6818330B2 (en) * 2000-08-25 2004-11-16 Seagate Technology Llc Perpendicular recording medium with antiferromagnetic exchange coupling in soft magnetic underlayers
JP2002100030A (ja) * 2000-09-21 2002-04-05 Toshiba Corp 垂直磁気記録媒体
US6641935B1 (en) * 2000-11-20 2003-11-04 Seagate Technology Llc Perpendicular recording media with soft magnetic superlattice underlayer
JP3849460B2 (ja) * 2001-05-29 2006-11-22 ソニー株式会社 磁気抵抗効果素子、磁気抵抗効果型磁気センサ、および磁気抵抗効果型磁気ヘッド
US6835475B2 (en) * 2001-07-26 2004-12-28 Hitachi Global Storage Technologies Netherlands B.V. Dual-layer perpendicular magnetic recording media with laminated underlayer formed with antiferromagnetically coupled films
US6777113B2 (en) * 2001-08-14 2004-08-17 Seagate Technology Llc Multilayer films for optimized soft underlayer magnetic properties of dual layer perpendicular recording media
US6890667B1 (en) * 2001-11-09 2005-05-10 Maxtor Corporation Soft underlayer structure for magnetic recording
JP3971697B2 (ja) * 2002-01-16 2007-09-05 Ｔｄｋ株式会社 高周波用磁性薄膜及び磁気素子
WO2003083840A1 (en) * 2002-03-29 2003-10-09 Fujitsu Limited Magnetic recording medium and magnetic storage apparatus
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JP2004118894A (ja) * 2002-09-24 2004-04-15 Victor Co Of Japan Ltd ディスク状磁気記録媒体
JP2004207651A (ja) * 2002-12-26 2004-07-22 Tdk Corp 高周波用磁性薄膜、複合磁性薄膜およびそれを用いた磁気素子
JP3730627B2 (ja) * 2003-02-28 2006-01-05 株式会社東芝 磁気記録媒体及び磁気記録再生装置
US7241516B1 (en) * 2003-03-03 2007-07-10 Maxtor Corporation Soft magnetic underlayer with exchange coupling induced anisotropy for perpendicular magnetic recording media
US6893748B2 (en) * 2003-05-20 2005-05-17 Komag, Inc. Soft magnetic film for perpendicular recording disk
KR100532486B1 (ko) * 2003-12-24 2005-12-02 삼성전자주식회사 하드디스크 드라이브의 기록 전류 제어 방법
JP2006018876A (ja) 2004-06-30 2006-01-19 Toshiba Corp 垂直磁気記録装置
KR100624441B1 (ko) 2004-10-28 2006-09-15 삼성전자주식회사 적층 연자성하지층을 가지는 수직자기기록매체 및 그제조방법
WO2006053314A2 (en) * 2004-11-09 2006-05-18 Fultec Semiconductor, Inc. Apparatus and method for high-voltage transient blocking using low-voltage elements
US20060147758A1 (en) * 2005-01-06 2006-07-06 Hong-Sik Jung Perpendicular magnetic recording medium with magnetically resetable single domain soft magnetic underlayer
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JP4570599B2 (ja) 2006-09-21 2010-10-27 シーゲイト テクノロジー エルエルシー 反強磁性結合ソフト磁性基層の垂直磁気記録メディア

Patent Citations (1)

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US20020127433A1 (en) 2000-12-28 2002-09-12 Showa Denko K.K. Magnetic recording medium, method of producing the same and magnetic recording and reproducing device

Also Published As

Publication number Publication date
JP2013502669A (ja) 2013-01-24
CN102498516B (zh) 2016-08-17
US9972352B2 (en) 2018-05-15
WO2011066007A1 (en) 2011-06-03
SG178370A1 (en) 2012-04-27
JP5795763B2 (ja) 2015-10-14
KR20120062801A (ko) 2012-06-14
JP6055523B2 (ja) 2016-12-27
CN102498516A (zh) 2012-06-13
JP2015228275A (ja) 2015-12-17
US20110043939A1 (en) 2011-02-24
SG10201404984QA (en) 2014-10-30

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