CN102483931B - 具有复合磁屏蔽的磁性传感器 - Google Patents

具有复合磁屏蔽的磁性传感器 Download PDF

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Publication number
CN102483931B
CN102483931B CN201080031224.9A CN201080031224A CN102483931B CN 102483931 B CN102483931 B CN 102483931B CN 201080031224 A CN201080031224 A CN 201080031224A CN 102483931 B CN102483931 B CN 102483931B
Authority
CN
China
Prior art keywords
magnetic
shielding element
magneto
layer
grain growth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201080031224.9A
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English (en)
Chinese (zh)
Other versions
CN102483931A (zh
Inventor
V·A·凡斯科
V·R·印图瑞
M·C·考茨基
Z·陆
M·T·基弗
Y·张
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of CN102483931A publication Critical patent/CN102483931A/zh
Application granted granted Critical
Publication of CN102483931B publication Critical patent/CN102483931B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3912—Arrangements in which the active read-out elements are transducing in association with active magnetic shields, e.g. magnetically coupled shields
    • 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/398—Specially shaped layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Hall/Mr Elements (AREA)
CN201080031224.9A 2009-07-08 2010-07-08 具有复合磁屏蔽的磁性传感器 Expired - Fee Related CN102483931B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/499,157 2009-07-08
US12/499,157 US8437105B2 (en) 2009-07-08 2009-07-08 Magnetic sensor with composite magnetic shield
PCT/US2010/041285 WO2011005914A1 (en) 2009-07-08 2010-07-08 Magnetic sensor with composite magnetic shield

Publications (2)

Publication Number Publication Date
CN102483931A CN102483931A (zh) 2012-05-30
CN102483931B true CN102483931B (zh) 2015-04-01

Family

ID=43064561

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080031224.9A Expired - Fee Related CN102483931B (zh) 2009-07-08 2010-07-08 具有复合磁屏蔽的磁性传感器

Country Status (5)

Country Link
US (2) US8437105B2 (enExample)
JP (1) JP6022936B2 (enExample)
KR (1) KR101389487B1 (enExample)
CN (1) CN102483931B (enExample)
WO (1) WO2011005914A1 (enExample)

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US8611055B1 (en) * 2009-07-31 2013-12-17 Western Digital (Fremont), Llc Magnetic etch-stop layer for magnetoresistive read heads
US8771847B2 (en) 2011-10-14 2014-07-08 Seagate Technology Reader stop-layers
EP2833542B1 (en) * 2012-03-30 2019-01-16 National Institute of Advanced Industrial Science and Technology Actuator element using carbon electrode
JP2013254547A (ja) * 2012-06-08 2013-12-19 Hitachi Ltd マイクロ波アシスト記録用磁気ヘッド及び磁気記録再生装置
US9183857B2 (en) * 2012-11-01 2015-11-10 Seagate Technology Llc Magnetic devices having shields including a nickel alloy
US8531801B1 (en) 2012-12-20 2013-09-10 Western Digital (Fremont), Llc Method and system for providing a read transducer having a composite magnetic shield with smooth interfaces
US20140254047A1 (en) 2013-03-08 2014-09-11 Seagate Technology Llc Reader with decoupled magnetic seed layer
JP6122353B2 (ja) * 2013-06-25 2017-04-26 ルネサスエレクトロニクス株式会社 半導体パッケージ
US9478239B2 (en) * 2013-06-27 2016-10-25 Seagate Technology Llc Reader structure with barrier layer contacting shield
US9691417B1 (en) 2013-06-28 2017-06-27 Seagate Technology Llc Magnetoresistive sensor having a synthetic antiferromagnetic bottom shield
US9251815B2 (en) * 2013-06-28 2016-02-02 Seagate Technology Llc Magnetoresistive sensor with AFM-stabilized bottom shield
US9190082B2 (en) * 2013-08-28 2015-11-17 Seagate Technology, Llc Dual reader structure
KR101476932B1 (ko) * 2013-11-20 2014-12-26 한양대학교 산학협력단 수직 자기 이방성을 갖는 mtj 구조, 이의 제조방법 및 이를 포함하는 자성소자
US9368136B2 (en) * 2014-02-27 2016-06-14 Seagate Technology Llc Magnetoresistive sensor having synthetic antiferromagnetic layer in top and bottom shields
US9412401B2 (en) 2014-05-13 2016-08-09 Seagate Technology Llc Data reader magnetic shield with CoFeNiB material
US9230565B1 (en) 2014-06-24 2016-01-05 Western Digital (Fremont), Llc Magnetic shield for magnetic recording head
US9454979B1 (en) 2014-11-14 2016-09-27 Seagate Technology Llc Sensor structure with multilayer top shield
US10074387B1 (en) 2014-12-21 2018-09-11 Western Digital (Fremont), Llc Method and system for providing a read transducer having symmetric antiferromagnetically coupled shields
US11307055B2 (en) * 2019-09-18 2022-04-19 Analog Devices International Unlimited Company Sensor with magnetic shield
US11754646B2 (en) * 2021-03-24 2023-09-12 Analog Devices International Unlimited Company Magnetic sensor system
CN115798522B (zh) * 2021-09-09 2025-10-10 西部数据技术公司 具有稳定上读取器的磁性读取传感器及相关方法

Citations (1)

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US5838521A (en) * 1995-04-17 1998-11-17 Read-Rite Corporation Magnetoresistive transducer having laminated magnetic shields

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JP2731506B2 (ja) * 1993-11-22 1998-03-25 富士通株式会社 磁気抵抗効果型磁気ヘッド及びその製造方法
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US20010029158A1 (en) * 1998-07-30 2001-10-11 Yoshitaka Sasaki Polishing apparatus and polishing method, and method of manufacturing semiconductor device and method of manufacturing thin film magnetic head
JP2000048327A (ja) * 1998-07-31 2000-02-18 Alps Electric Co Ltd 薄膜磁気ヘッド
US6437949B1 (en) 2000-02-08 2002-08-20 Seagate Technology Llc Single domain state laminated thin film structure
US6807031B2 (en) * 2000-02-08 2004-10-19 Seagate Technology Llc Single domain state laminated thin film structure for use as a magnetic layer of a transducing head
US7180712B1 (en) * 2000-02-28 2007-02-20 Headway Technologies, Inc. Shield structure design to improve the stability of an MR head
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US5838521A (en) * 1995-04-17 1998-11-17 Read-Rite Corporation Magnetoresistive transducer having laminated magnetic shields

Also Published As

Publication number Publication date
US8945405B2 (en) 2015-02-03
WO2011005914A1 (en) 2011-01-13
US8437105B2 (en) 2013-05-07
US20110007425A1 (en) 2011-01-13
KR20120045012A (ko) 2012-05-08
US20130233823A1 (en) 2013-09-12
KR101389487B1 (ko) 2014-04-28
JP2012533141A (ja) 2012-12-20
JP6022936B2 (ja) 2016-11-09
CN102483931A (zh) 2012-05-30

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