JP5798089B2 - センサ積層体、シールド、および第１のシールド安定化構造を備える装置、センサ積層体、シールド、および磁性層を備える装置、データ記憶媒体、記録ヘッド、およびアームを備える装置 - Google Patents

センサ積層体、シールド、および第１のシールド安定化構造を備える装置、センサ積層体、シールド、および磁性層を備える装置、データ記憶媒体、記録ヘッド、およびアームを備える装置 Download PDF

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Publication number
JP5798089B2
JP5798089B2 JP2012134721A JP2012134721A JP5798089B2 JP 5798089 B2 JP5798089 B2 JP 5798089B2 JP 2012134721 A JP2012134721 A JP 2012134721A JP 2012134721 A JP2012134721 A JP 2012134721A JP 5798089 B2 JP5798089 B2 JP 5798089B2
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Japan
Prior art keywords
shield
layer
magnetic
magnetic layer
sensor
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Expired - Fee Related
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JP2012134721A
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Japanese (ja)
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JP2013008439A (ja
JP2013008439A5 (enExample
Inventor
エリック・ウォルター・シングルトン
クアン・ジュンジエ
イ・ジェ−ヨン
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Seagate Technology LLC
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Seagate Technology LLC
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Publication of JP2013008439A5 publication Critical patent/JP2013008439A5/ja
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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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • 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
    • 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
    • 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
    • H10N50/01—Manufacture or treatment
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Heads (AREA)
  • Hall/Mr Elements (AREA)
  • Measuring Magnetic Variables (AREA)
JP2012134721A 2011-06-23 2012-06-14 センサ積層体、シールド、および第１のシールド安定化構造を備える装置、センサ積層体、シールド、および磁性層を備える装置、データ記憶媒体、記録ヘッド、およびアームを備える装置 Expired - Fee Related JP5798089B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/167,142 US20120327537A1 (en) 2011-06-23 2011-06-23 Shield Stabilization Configuration With Applied Bias
US13/167,142 2011-06-23

Publications (3)

Publication Number Publication Date
JP2013008439A JP2013008439A (ja) 2013-01-10
JP2013008439A5 JP2013008439A5 (enExample) 2013-05-02
JP5798089B2 true JP5798089B2 (ja) 2015-10-21

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JP2012134721A Expired - Fee Related JP5798089B2 (ja) 2011-06-23 2012-06-14 センサ積層体、シールド、および第１のシールド安定化構造を備える装置、センサ積層体、シールド、および磁性層を備える装置、データ記憶媒体、記録ヘッド、およびアームを備える装置

Country Status (3)

Country Link
US (2) US20120327537A1 (enExample)
JP (1) JP5798089B2 (enExample)
MY (1) MY156154A (enExample)

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US20140268417A1 (en) * 2013-03-16 2014-09-18 Seagate Technology Llc Bottom shield stabilized magnetic seed layer
US9478239B2 (en) 2013-06-27 2016-10-25 Seagate Technology Llc Reader structure with barrier layer contacting shield
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US9251815B2 (en) * 2013-06-28 2016-02-02 Seagate Technology Llc Magnetoresistive sensor with AFM-stabilized bottom shield
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US9230575B2 (en) * 2013-12-13 2016-01-05 Seagate Technology Llc Magnetoresistive sensor with SAF structure having crystalline layer and amorphous layer
US9183858B2 (en) * 2014-01-28 2015-11-10 HGST Netherlands B.V. Dual capping layer utilized in a magnetoresistive effect sensor
US9047893B1 (en) * 2014-01-31 2015-06-02 HGST Netherlands B.V. Magnetic sensor having narrow trackwidth and small read gap
US9513349B2 (en) * 2014-02-06 2016-12-06 HGST Netherlands B.V. Scissor type magnetic sensor with high magnetic moment bias structure for reduced signal asymmetry
US9368136B2 (en) * 2014-02-27 2016-06-14 Seagate Technology Llc Magnetoresistive sensor having synthetic antiferromagnetic layer in top and bottom shields
US9633679B2 (en) 2014-05-06 2017-04-25 Seagate Technology Llc Sensor stack structure with RKKY coupling layer between free layer and capping layer
US9412401B2 (en) 2014-05-13 2016-08-09 Seagate Technology Llc Data reader magnetic shield with CoFeNiB material
US9230576B1 (en) * 2014-09-08 2016-01-05 HGST Netherlands B.V. Scissor reader with side shield decoupled from bias material
US9269381B1 (en) 2014-09-15 2016-02-23 Seagate Technology Llc Sensor structure having layer with high magnetic moment
US9454979B1 (en) * 2014-11-14 2016-09-27 Seagate Technology Llc Sensor structure with multilayer top shield
US9653102B1 (en) * 2014-12-19 2017-05-16 Seagate Technology Llc Data reader with pinned front 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
US20160365104A1 (en) * 2015-06-15 2016-12-15 Seagate Technology Llc Magnetoresistive sensor fabrication
US9646639B2 (en) 2015-06-26 2017-05-09 Western Digital (Fremont), Llc Heat assisted magnetic recording writer having integrated polarization rotation waveguides
US9685177B2 (en) * 2015-07-08 2017-06-20 Seagate Technology Llc Sensor stabilization in a multiple sensor magnetic reproducing device
US9601138B1 (en) * 2015-09-09 2017-03-21 Headway Technologies, Inc. Bias layer and shield biasing design
US9666214B1 (en) * 2015-09-23 2017-05-30 Western Digital (Fremont), Llc Free layer magnetic reader that may have a reduced shield-to-shield spacing
US9947344B2 (en) * 2016-04-12 2018-04-17 International Business Machines Corporation Stabilizing layered structure for magnetic tape heads
US10068601B1 (en) * 2016-08-09 2018-09-04 Western Digital (Fremont), Llc Free layer only magnetic reader that may have a reduced shield-to-shield spacing and a multilayer side bias
US10559412B2 (en) * 2017-12-07 2020-02-11 Tdk Corporation Magnetoresistance effect device
US10522173B1 (en) * 2018-06-13 2019-12-31 Headway Technologies, Inc. Magnetic read head structure with improved bottom shield design for better reader performance

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Also Published As

Publication number Publication date
JP2013008439A (ja) 2013-01-10
US9001472B2 (en) 2015-04-07
US20120327537A1 (en) 2012-12-27
MY156154A (en) 2016-01-15
US20140104729A1 (en) 2014-04-17

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