CN104347083B - 磁阻传感器屏蔽 - Google Patents

磁阻传感器屏蔽 Download PDF

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Publication number
CN104347083B
CN104347083B CN201410356739.6A CN201410356739A CN104347083B CN 104347083 B CN104347083 B CN 104347083B CN 201410356739 A CN201410356739 A CN 201410356739A CN 104347083 B CN104347083 B CN 104347083B
Authority
CN
China
Prior art keywords
layer
sensor
storehouse
saf
sensor device
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
CN201410356739.6A
Other languages
English (en)
Chinese (zh)
Other versions
CN104347083A (zh
Inventor
K·麦克內尔
A·高根
M·奥姆斯顿
V·B·萨波日尼科夫
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 CN104347083A publication Critical patent/CN104347083A/zh
Application granted granted Critical
Publication of CN104347083B publication Critical patent/CN104347083B/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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields
    • 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
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N50/00—Galvanomagnetic devices
    • H10N50/10—Magnetoresistive devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N50/00—Galvanomagnetic devices
    • H10N50/80—Constructional details
    • 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
    • Y10T428/1193—Magnetic recording head with interlaminar component [e.g., adhesion layer, etc.]

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Measuring Magnetic Variables (AREA)
  • Hall/Mr Elements (AREA)
CN201410356739.6A 2013-07-30 2014-07-24 磁阻传感器屏蔽 Expired - Fee Related CN104347083B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/953,936 US8988832B2 (en) 2013-07-30 2013-07-30 Magnetoresistive sensor shield
US13/953,936 2013-07-30

Publications (2)

Publication Number Publication Date
CN104347083A CN104347083A (zh) 2015-02-11
CN104347083B true CN104347083B (zh) 2019-02-19

Family

ID=52427443

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410356739.6A Expired - Fee Related CN104347083B (zh) 2013-07-30 2014-07-24 磁阻传感器屏蔽

Country Status (4)

Country Link
US (1) US8988832B2 (enExample)
JP (1) JP6069265B2 (enExample)
KR (1) KR101619929B1 (enExample)
CN (1) CN104347083B (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140254047A1 (en) * 2013-03-08 2014-09-11 Seagate Technology Llc Reader with decoupled magnetic seed layer
US9269381B1 (en) 2014-09-15 2016-02-23 Seagate Technology Llc Sensor structure having layer with high magnetic moment
US9269383B1 (en) * 2015-01-23 2016-02-23 HGST Netherlands B.V. Multi-sensor (MIMO) head having a back side antiferromagnetic middle shield
US20160365104A1 (en) * 2015-06-15 2016-12-15 Seagate Technology Llc Magnetoresistive sensor fabrication
US9704515B2 (en) 2015-09-29 2017-07-11 Seagate Technology Llc Lateral spin valve reader with in-plane detector
US9673385B1 (en) 2016-03-24 2017-06-06 Headway Technologies, Inc. Seed layer for growth of <111> magnetic materials
US9934798B1 (en) 2016-09-28 2018-04-03 Seagate Technology Llc Lateral spin valve reader with vertically-integrated two-dimensional semiconducting channel
US10614838B2 (en) 2018-08-23 2020-04-07 Seagate Technology Llc Reader with side shields decoupled from a top shield
US11307055B2 (en) * 2019-09-18 2022-04-19 Analog Devices International Unlimited Company Sensor with magnetic shield
US11074930B1 (en) * 2020-05-11 2021-07-27 International Business Machines Corporation Read transducer structure having an embedded wear layer between thin and thick shield portions
US11676627B2 (en) * 2021-08-06 2023-06-13 Western Digital Technologies, Inc. Magnetic recording head with stable magnetization of shields

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6437949B1 (en) * 2000-02-08 2002-08-20 Seagate Technology Llc Single domain state laminated thin film structure
US7180712B1 (en) * 2000-02-28 2007-02-20 Headway Technologies, Inc. Shield structure design to improve the stability of an MR head
US6456467B1 (en) * 2000-03-31 2002-09-24 Seagate Technology Llc Laminated shields with antiparallel magnetizations
JP4065787B2 (ja) * 2002-08-30 2008-03-26 株式会社日立グローバルストレージテクノロジーズ 磁気ヘッドおよび磁気記録再生装置
US7236333B2 (en) * 2003-12-11 2007-06-26 Seagate Technology Llc Domain wall free shields of MR sensors
US7974048B2 (en) * 2007-11-28 2011-07-05 Tdk Corporation Magneto-resistive effect device of CPP type having shield layers coupled with ferromagnetic layers
US8014108B2 (en) * 2008-02-08 2011-09-06 Tdk Corporation Magnetoresistive device of the CPP type, utilizing insulating layers interposed in shield layers to form a closed magnetic path usable in a disk system
US8514524B2 (en) * 2008-05-09 2013-08-20 Headway Technologies, Inc. Stabilized shields for magnetic recording heads
US8238063B2 (en) 2009-07-07 2012-08-07 Seagate Technology Llc Magnetoresistive sensor with synthetic antiferromagnetic cap or seed layers
US8902548B2 (en) * 2010-04-30 2014-12-02 Seagate Technology Llc Head with high readback resolution
US8437106B2 (en) * 2010-10-08 2013-05-07 Tdk Corporation Thin film magnetic head including spin-valve film with free layer magnetically connected with shield
US8462467B2 (en) * 2010-10-08 2013-06-11 Tdk Corporation Thin film magnetic head including soft layer magnetically connected with shield
US8451567B2 (en) 2010-12-13 2013-05-28 Headway Technologies, Inc. High resolution magnetic read head using top exchange biasing and/or lateral hand biasing of the free layer
US8472147B2 (en) * 2011-05-06 2013-06-25 Seagate Technology Llc Magnetoresistive shield with lateral sub-magnets
US8570683B2 (en) 2011-06-24 2013-10-29 HGST Netherlands B.V. Low permeability material for a side shield in a perpendicular magnetic head
US8630068B1 (en) * 2011-11-15 2014-01-14 Western Digital (Fremont), Llc Method and system for providing a side shielded read transducer
US8630069B1 (en) * 2012-10-04 2014-01-14 HGST Netherlands B.V. Magnetic shield having improved resistance to the hard bias magnetic field
US8760820B1 (en) * 2012-11-30 2014-06-24 Seagate Technology Llc Magnetic element with coupled side shield
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
US8638530B1 (en) * 2013-02-20 2014-01-28 HGST Netherlands B.V. Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor having a top shield with an antiparallel structure
US20140254047A1 (en) * 2013-03-08 2014-09-11 Seagate Technology Llc Reader with decoupled magnetic seed layer

Also Published As

Publication number Publication date
CN104347083A (zh) 2015-02-11
JP6069265B2 (ja) 2017-02-01
US8988832B2 (en) 2015-03-24
KR20150014855A (ko) 2015-02-09
KR101619929B1 (ko) 2016-05-11
JP2015028832A (ja) 2015-02-12
US20150036246A1 (en) 2015-02-05

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PB01 Publication
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SE01 Entry into force of request for substantive examination
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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190219