CN104424959B - 读取器结构 - Google Patents

读取器结构 Download PDF

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Publication number
CN104424959B
CN104424959B CN201410421282.2A CN201410421282A CN104424959B CN 104424959 B CN104424959 B CN 104424959B CN 201410421282 A CN201410421282 A CN 201410421282A CN 104424959 B CN104424959 B CN 104424959B
Authority
CN
China
Prior art keywords
free layer
cross track
anisotropy
single free
magnetic
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
CN201410421282.2A
Other languages
English (en)
Chinese (zh)
Other versions
CN104424959A (zh
Inventor
V·B·萨波日尼科夫
M·S·U·帕特瓦瑞
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 CN104424959A publication Critical patent/CN104424959A/zh
Application granted granted Critical
Publication of CN104424959B publication Critical patent/CN104424959B/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
    • G11B5/127—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
    • G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
    • G11B5/3932—Magnetic biasing films
    • 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
    • G11B5/3909—Arrangements using a magnetic tunnel junction
    • 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/1107—Magnetoresistive
    • Y10T428/1121—Multilayer

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Hall/Mr Elements (AREA)
CN201410421282.2A 2013-08-23 2014-08-25 读取器结构 Expired - Fee Related CN104424959B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/975,053 2013-08-23
US13/975,053 US9508366B2 (en) 2013-08-23 2013-08-23 Reader structure

Publications (2)

Publication Number Publication Date
CN104424959A CN104424959A (zh) 2015-03-18
CN104424959B true CN104424959B (zh) 2018-09-21

Family

ID=52480168

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410421282.2A Expired - Fee Related CN104424959B (zh) 2013-08-23 2014-08-25 读取器结构

Country Status (4)

Country Link
US (1) US9508366B2 (enExample)
JP (1) JP2015041403A (enExample)
KR (1) KR101823489B1 (enExample)
CN (1) CN104424959B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9679589B2 (en) * 2015-09-11 2017-06-13 Seagate Technology Llc Magnetoresistive sensor with enhanced uniaxial anisotropy

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1801332A (zh) * 2004-11-09 2006-07-12 株式会社东芝 磁阻元件，磁阻磁头，磁记录设备以及磁存储器
CN101083081A (zh) * 2006-05-31 2007-12-05 株式会社东芝 垂直通电型磁头以及使用该磁头的磁盘设备

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956736A (en) * 1988-12-16 1990-09-11 Eastman Kodak Company Thin film magnetic element having a rhombic shape
US5379172A (en) * 1990-09-19 1995-01-03 Seagate Technology, Inc. Laminated leg for thin film magnetic transducer
JP2683503B2 (ja) * 1993-09-02 1997-12-03 インターナショナル・ビジネス・マシーンズ・コーポレイション 磁性膜構造
JP3075253B2 (ja) * 1998-03-31 2000-08-14 日本電気株式会社 スピンバルブ型感磁素子及びこれを用いた磁気ヘッド並びに磁気ディスク装置
JP3623418B2 (ja) * 1999-12-06 2005-02-23 アルプス電気株式会社 スピンバルブ型磁気抵抗効果素子及びそれを備えた薄膜磁気へッドとそれらの製造方法
US6809900B2 (en) * 2001-01-25 2004-10-26 Seagate Technology Llc Write head with magnetization controlled by spin-polarized electron current
US6765770B2 (en) * 2001-10-11 2004-07-20 Storage Technology Corporation Apparatus and method of making a stabilized MR/GMR spin valve read element using longitudinal ferromagnetic exchange interactions
US6965494B2 (en) * 2002-05-13 2005-11-15 Robert Owen Campbell Magnetic recording head having a first pole for generating an easy axis field and an auxiliary pole for generating a first auxiliary hard axis field that opposes an initial hard axis field
US7330339B2 (en) * 2003-07-25 2008-02-12 Hitachi Global Storage Technologies Netherlands B.V. Structure providing enhanced self-pinning for CPP GMR and tunnel valve heads
US7382586B2 (en) * 2005-03-31 2008-06-03 Hitachi Global Storage Technologies Netherlands B.V. Magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in a self biased free layer
US7460343B2 (en) * 2005-03-31 2008-12-02 Hitachi Global Storage Technologies Netherlands B.V. Magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in a hard magnetic in-stack bias layer
US7443639B2 (en) * 2005-04-04 2008-10-28 International Business Machines Corporation Magnetic tunnel junctions including crystalline and amorphous tunnel barrier materials
US8023230B2 (en) * 2008-10-27 2011-09-20 Tdk Corporation Magnetoresistive element including a pair of ferromagnetic layers coupled to a pair of shield layers
US8405931B2 (en) * 2009-06-25 2013-03-26 Seagate Technology Llc Magnetic main write pole
US8742518B2 (en) * 2011-03-31 2014-06-03 Seagate Technology Llc Magnetic tunnel junction with free layer having exchange coupled magnetic elements
US8400738B2 (en) 2011-04-25 2013-03-19 Seagate Technology Llc Magnetic element with dual magnetic moments
US8675315B2 (en) * 2011-07-29 2014-03-18 Seagate Technology Llc Magnetic sensor with anisotropic liner
US8755154B2 (en) * 2011-09-13 2014-06-17 Seagate Technology Llc Tuned angled uniaxial anisotropy in trilayer magnetic sensors
US8837092B2 (en) 2012-06-29 2014-09-16 Seagate Technology Llc Magnetic element with biasing structure distal the air bearing surface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1801332A (zh) * 2004-11-09 2006-07-12 株式会社东芝 磁阻元件，磁阻磁头，磁记录设备以及磁存储器
CN101083081A (zh) * 2006-05-31 2007-12-05 株式会社东芝 垂直通电型磁头以及使用该磁头的磁盘设备

Also Published As

Publication number Publication date
KR20150022729A (ko) 2015-03-04
US20150055251A1 (en) 2015-02-26
CN104424959A (zh) 2015-03-18
JP2015041403A (ja) 2015-03-02
US9508366B2 (en) 2016-11-29
KR101823489B1 (ko) 2018-03-14

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Granted publication date: 20180921

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