JP6000817B2 - 垂直にオフセットされた異方性膜を有する磁気抵抗ヘッド及びそれを用いたハードディスクドライブ - Google Patents

垂直にオフセットされた異方性膜を有する磁気抵抗ヘッド及びそれを用いたハードディスクドライブ Download PDF

Info

Publication number
JP6000817B2
JP6000817B2 JP2012253959A JP2012253959A JP6000817B2 JP 6000817 B2 JP6000817 B2 JP 6000817B2 JP 2012253959 A JP2012253959 A JP 2012253959A JP 2012253959 A JP2012253959 A JP 2012253959A JP 6000817 B2 JP6000817 B2 JP 6000817B2
Authority
JP
Japan
Prior art keywords
film
anisotropic film
magnetic head
anisotropy
plane
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
JP2012253959A
Other languages
English (en)
Japanese (ja)
Other versions
JP2013109822A (ja
JP2013109822A5 (OSRAM
Inventor
進 岡村
進 岡村
隆弘 指宿
隆弘 指宿
Original Assignee
エイチジーエスティーネザーランドビーブイ
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 エイチジーエスティーネザーランドビーブイ filed Critical エイチジーエスティーネザーランドビーブイ
Publication of JP2013109822A publication Critical patent/JP2013109822A/ja
Publication of JP2013109822A5 publication Critical patent/JP2013109822A5/ja
Application granted granted Critical
Publication of JP6000817B2 publication Critical patent/JP6000817B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Heads (AREA)
JP2012253959A 2011-11-21 2012-11-20 垂直にオフセットされた異方性膜を有する磁気抵抗ヘッド及びそれを用いたハードディスクドライブ Expired - Fee Related JP6000817B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/301,596 US8451565B1 (en) 2011-11-21 2011-11-21 Magnetoresistive head having perpendicularly offset anisotropy films and a hard disk drive using the same
US13/301,596 2011-11-21

Publications (3)

Publication Number Publication Date
JP2013109822A JP2013109822A (ja) 2013-06-06
JP2013109822A5 JP2013109822A5 (OSRAM) 2016-01-07
JP6000817B2 true JP6000817B2 (ja) 2016-10-05

Family

ID=48426629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012253959A Expired - Fee Related JP6000817B2 (ja) 2011-11-21 2012-11-20 垂直にオフセットされた異方性膜を有する磁気抵抗ヘッド及びそれを用いたハードディスクドライブ

Country Status (2)

Country Link
US (1) US8451565B1 (OSRAM)
JP (1) JP6000817B2 (OSRAM)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8786988B2 (en) * 2012-05-15 2014-07-22 HGST Netherlands B.V. Read sensor having a structure for reducing magnetic coupling between a magnetic bias layer and an upper magnetic shield
CN104078055B (zh) * 2013-03-29 2018-10-26 东莞新科技术研究开发有限公司 挠性件及其制造方法、磁头折片组合以及磁盘驱动器
US8867175B1 (en) * 2013-05-08 2014-10-21 Seagate Technology Llc Magnetic shield base lamination
US9349397B2 (en) * 2014-03-26 2016-05-24 HGST Netherlands B.V. Higher stability read head utilizing a partial milling process
JP6778866B2 (ja) * 2015-03-31 2020-11-04 国立大学法人東北大学 磁気抵抗効果素子、磁気メモリ装置、製造方法、動作方法、及び集積回路
JP6885797B2 (ja) * 2017-06-12 2021-06-16 昭和電工株式会社 磁気センサ及び磁気センサの製造方法
JP6913617B2 (ja) * 2017-12-01 2021-08-04 昭和電工株式会社 磁気センサ、計測装置及び磁気センサの製造方法
US10777222B1 (en) * 2020-02-14 2020-09-15 Western Digital Technologies, Inc. Two-dimensional magnetic recording (TDMR) read head structure with different stacked sensors and disk drive incorporating the structure

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001160208A (ja) 1999-12-02 2001-06-12 Alps Electric Co Ltd 磁気抵抗効果素子及びその製造方法
US6515838B1 (en) 2000-06-06 2003-02-04 International Business Machines Corporation Biasing correction for simple GMR head
US6888706B2 (en) 2001-08-08 2005-05-03 Alps Electric Co., Ltd. Magnetic sensing element having hard bias layer formed on bias underlayer and process for manufacturing the same
US6914760B2 (en) 2001-09-07 2005-07-05 International Business Machines Corporation Hard bias layer for read heads
JP2007531182A (ja) 2004-04-02 2007-11-01 Ｔｄｋ株式会社 膜面垂直通電モード磁気抵抗ヘッド用安定化器とその製造方法
JP4146818B2 (ja) * 2004-04-21 2008-09-10 Ｔｄｋ株式会社 薄膜磁気ヘッド、ヘッドジンバルアセンブリおよびハードディスク装置
US7283337B2 (en) 2005-03-04 2007-10-16 Headway Technologies, Inc. Abutted exchange bias design for sensor stabilization
US20090103215A1 (en) * 2005-10-21 2009-04-23 Freitag James M Magnetoresistive (mr) elements having improved hard bias seed layers
US7804668B2 (en) * 2006-11-16 2010-09-28 Headway Technologies, Inc. Enhanced hard bias in thin film magnetoresistive sensors with perpendicular easy axis growth of hard bias and strong shield-hard bias coupling
JP2008192832A (ja) 2007-02-05 2008-08-21 Hitachi Global Storage Technologies Netherlands Bv 磁気検出素子及びその製造方法
JP2009087474A (ja) * 2007-09-29 2009-04-23 Hitachi Global Storage Technologies Netherlands Bv Ｃｐｐ磁気リード・ヘッド及びその製造方法
JP5336591B2 (ja) * 2009-06-09 2013-11-06 キヤノンアネルバ株式会社 磁気センサ積層体、その成膜方法、成膜制御プログラムおよび記録媒体
US8563147B2 (en) * 2009-06-24 2013-10-22 Headway Technologies, Inc. Thin seeded Co/Ni multilayer film with perpendicular anisotropy for read head sensor stabilization

Also Published As

Publication number Publication date
JP2013109822A (ja) 2013-06-06
US20130128381A1 (en) 2013-05-23
US8451565B1 (en) 2013-05-28

Similar Documents

Publication Publication Date Title
US9202528B2 (en) MAMR head with recessed STO
US10872627B2 (en) Reversed mode spin torque oscillator with shaped field generation layer
US10997988B1 (en) Magnetic recording head with non-magnetic conductive structure
JP6000817B2 (ja) 垂直にオフセットされた異方性膜を有する磁気抵抗ヘッド及びそれを用いたハードディスクドライブ
US8630069B1 (en) Magnetic shield having improved resistance to the hard bias magnetic field
US8902544B2 (en) Spin torque oscillator (STO) reader with soft magnetic side shields
US20110026169A1 (en) Dual cpp gmr head using a scissor sensor
US9280992B1 (en) Hybrid longitudinal-field bias side shield for a scissor magnetic sensor and methods of making the same
US20140355152A1 (en) Interlayer coupled free layer with out of plane magnetic orientation for magnetic read head
GB2535272A (en) Low BS spin-polarizer spin torque oscillator
US20160163338A1 (en) Tunneling magnetoresistive (tmr) sensor with a soft bias layer
GB2532575A (en) Negative-polarization spin-torque-oscillator
CN117998968A (zh) 包括双fgl和双spl以减小写入位置处的垂直场的自旋电子设备
US8537496B2 (en) Perpendicular magnetic write head having a trailing wrap-around magnetic shield magnetically biased in a cross track direction
EP2988303A1 (en) Multiple-input-multiple-output sensor designs for magnetic applications
US9099115B2 (en) Magnetic sensor with doped ferromagnetic cap and/or underlayer
US8873203B2 (en) Magnetic head having a soft magnetic layer formed behind a tunneling magnetoresistance (TMR) sensor in an element height direction
US10026426B2 (en) Magnetic tunnel junction (MTJ) free layer damping reduction
US9007729B1 (en) Reader sensor having a recessed antiferromagnetic (AFM) pinning layer
US9165575B2 (en) Side shield reader with a shield exciting coil
US7436629B2 (en) Laminated magnetic structure for use in a perpendicular magnetic write head
US9042060B2 (en) Magnetic head having a long throat height pinned layer with a short height hard bias layer
US8976492B1 (en) Magnetic head having two domain control layers for stabilizing magnetization of the hard bias layer
US20140293472A1 (en) Read head sensor with a tantalum oxide refill layer
US8867177B2 (en) Magnetic sensor having improved resistance to thermal stress induced instability

Legal Events

Date Code Title Description
RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7426

Effective date: 20130527

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20130527

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20151109

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20151109

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20151109

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20151208

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160202

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20160427

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160506

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160802

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160831

R150 Certificate of patent or registration of utility model

Ref document number: 6000817

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees