JP2015049927A - 二重リーダー構造 - Google Patents

二重リーダー構造 Download PDF

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Publication number
JP2015049927A
JP2015049927A JP2014173775A JP2014173775A JP2015049927A JP 2015049927 A JP2015049927 A JP 2015049927A JP 2014173775 A JP2014173775 A JP 2014173775A JP 2014173775 A JP2014173775 A JP 2014173775A JP 2015049927 A JP2015049927 A JP 2015049927A
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JP
Japan
Prior art keywords
sensor stack
shield
reader
sensor
stack
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.)
Pending
Application number
JP2014173775A
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English (en)
Japanese (ja)
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JP2015049927A5 (enExample
Inventor
ビクター・ボリス・サポツニコフ
Boris Sapozhnikov Victor
ハリー・エーデルマン
Edelman Harry
モハメド・シャリア・ウッラー・パトワリ
Shariat Ullah Patwari Mohammed
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
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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 JP2015049927A publication Critical patent/JP2015049927A/ja
Publication of JP2015049927A5 publication Critical patent/JP2015049927A5/ja
Pending legal-status Critical Current

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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
    • G11B5/3945—Heads comprising more than one sensitive element
    • G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
    • 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
    • G11B5/115—Shielding devices arranged between heads or windings
    • 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
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3945—Heads comprising more than one sensitive element
    • G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
    • G11B5/3951—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged on several parallel planes
    • 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
    • G11B5/3945—Heads comprising more than one sensitive element
    • G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
    • G11B5/3951—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged on several parallel planes
    • G11B5/3954—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged on several parallel planes the active elements transducing on a single track
    • 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
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc
    • 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
    • G11B2005/3996—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 large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Hall/Mr Elements (AREA)
JP2014173775A 2013-08-30 2014-08-28 二重リーダー構造 Pending JP2015049927A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/014,597 2013-08-30
US14/014,597 US9190078B2 (en) 2013-08-30 2013-08-30 Dual reader structure

Publications (2)

Publication Number Publication Date
JP2015049927A true JP2015049927A (ja) 2015-03-16
JP2015049927A5 JP2015049927A5 (enExample) 2015-08-13

Family

ID=52582892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014173775A Pending JP2015049927A (ja) 2013-08-30 2014-08-28 二重リーダー構造

Country Status (4)

Country Link
US (2) US9190078B2 (enExample)
JP (1) JP2015049927A (enExample)
KR (1) KR101682437B1 (enExample)
CN (1) CN104424961B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017027645A (ja) * 2015-07-24 2017-02-02 株式会社東芝 磁気ヘッド、磁気ヘッドアセンブリ、および磁気記録再生装置
JP2017037699A (ja) * 2015-08-14 2017-02-16 シーゲイト テクノロジー エルエルシーＳｅａｇａｔｅ Ｔｅｃｈｎｏｌｏｇｙ ＬＬＣ マルチセンサ読取器、読取器、およびマルチセンサ読取器を形成する方法
JP2018037131A (ja) * 2017-11-22 2018-03-08 株式会社東芝 磁気ヘッド、磁気記録再生装置、および磁気ヘッドの製造方法
WO2020110360A1 (ja) * 2018-11-29 2020-06-04 国立研究開発法人物質・材料研究機構 磁気抵抗効果素子、磁気センサ、再生ヘッドおよび磁気記録再生装置

Families Citing this family (25)

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US9190078B2 (en) * 2013-08-30 2015-11-17 Seagate Technology Llc Dual reader structure
US9524737B2 (en) * 2013-12-13 2016-12-20 Seagate Technology Llc Shielding and electrical contact design for devices with two or more read elements
US9406321B2 (en) 2014-02-27 2016-08-02 Seagate Technology Llc Read head with multiple reader stacks
US9396745B2 (en) * 2014-03-07 2016-07-19 Seagate Technology Llc Multi-sensor reader with different readback sensitivities
JP6309796B2 (ja) * 2014-03-20 2018-04-11 株式会社東芝 磁気ヘッド、磁気記録再生装置、および磁気ヘッドの製造方法
US9361910B2 (en) * 2014-07-03 2016-06-07 Seagate Technology Llc Leads coupled to top and bottom reader stacks of a reader
US9401163B2 (en) 2014-07-03 2016-07-26 Seagate Technology Llc Multi-stack reader with split middle shield
US9218831B1 (en) * 2014-09-17 2015-12-22 HGST Netherlands B.V. Side-by-side magnetic multi-input multi-output (MIMO) read head
US9721595B1 (en) * 2014-12-04 2017-08-01 Western Digital (Fremont), Llc Method for providing a storage device
US9269383B1 (en) * 2015-01-23 2016-02-23 HGST Netherlands B.V. Multi-sensor (MIMO) head having a back side antiferromagnetic middle shield
US9299370B1 (en) * 2015-03-11 2016-03-29 HGST Netherlands B.V. MIMO read head with soft bias and split shield
US9685177B2 (en) * 2015-07-08 2017-06-20 Seagate Technology Llc Sensor stabilization in a multiple sensor magnetic reproducing device
US9552834B1 (en) * 2015-09-28 2017-01-24 Seagate Technology Llc Stabilization of one or more upper sensors in multi-sensor readers
US9570100B1 (en) * 2015-10-21 2017-02-14 Western Digital Technologies, Inc. Two-dimensional magnetic recording device with center shield stabilized by recessed AFM layer
US9870791B1 (en) 2016-04-15 2018-01-16 Seagate Technology Llc Stabilization of one or more upper sensors in multi-sensor readers
US10586562B1 (en) 2017-01-13 2020-03-10 Seagate Technology Llc Read head having sensors with conflicting design characteristics
US10468055B1 (en) 2017-11-01 2019-11-05 Seagate Technology Llc Multi-sensor reader having oppositely biased sensing layers
US10714131B1 (en) 2019-02-14 2020-07-14 Headway Technologies, Inc. Unified dual free layer reader with shared reference layer to enable reduced reader-to-reader separation
US11380355B2 (en) 2020-10-27 2022-07-05 Headway Technologies, Inc. Adaptive bias control for magnetic recording head
US11557319B1 (en) 2021-08-24 2023-01-17 Seagate Technology Llc Read offset calibration for error recovery
US11568895B1 (en) 2021-09-03 2023-01-31 Seagate Technology Llc Read offset calibration for error recovery
US11514934B1 (en) 2021-10-27 2022-11-29 Western Digital Technologies, Inc. Planar design for sensors in a dual free layer read head
US12322420B2 (en) * 2022-11-01 2025-06-03 Western Digital Technologies, Inc. Middle shields two-dimensional magnetic recording read heads
US12131759B2 (en) 2022-11-08 2024-10-29 Western Digital Technologies, Inc. Two-dimensional magnetic recording read head with TaOx layer for flat middle shield topography and method of forming thereof
US12308052B2 (en) 2023-04-13 2025-05-20 Western Digital Technologies, Inc. Produce thinner DTS and adjustable capacitance for TDMR heads

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JP2002157714A (ja) * 2000-08-07 2002-05-31 Tdk Corp 磁気抵抗効果素子および再生ヘッド
JP2002353535A (ja) * 2001-05-29 2002-12-06 Sony Corp 磁気抵抗効果素子、磁気抵抗効果型磁気センサ、磁気抵抗効果型磁気ヘッド、および磁気メモリ
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US20050068683A1 (en) * 2003-09-26 2005-03-31 Hitachi Global Technologies Netherlands B.V. Method for providing a self-pinned differential GMR sensor and self-pinned differential GMR sensor
US20050068684A1 (en) * 2003-09-30 2005-03-31 Gill Hardayal Singh Differential spin valve sensor having both pinned and self-pinned structures
US20090059437A1 (en) * 2007-09-05 2009-03-05 Hardayal Singh Gill Differential current perpendicular to plane giant magnetoresistive sensor structure having improved robustness against spin torque noise
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017027645A (ja) * 2015-07-24 2017-02-02 株式会社東芝 磁気ヘッド、磁気ヘッドアセンブリ、および磁気記録再生装置
JP2017037699A (ja) * 2015-08-14 2017-02-16 シーゲイト テクノロジー エルエルシーＳｅａｇａｔｅ Ｔｅｃｈｎｏｌｏｇｙ ＬＬＣ マルチセンサ読取器、読取器、およびマルチセンサ読取器を形成する方法
JP2018037131A (ja) * 2017-11-22 2018-03-08 株式会社東芝 磁気ヘッド、磁気記録再生装置、および磁気ヘッドの製造方法
WO2020110360A1 (ja) * 2018-11-29 2020-06-04 国立研究開発法人物質・材料研究機構 磁気抵抗効果素子、磁気センサ、再生ヘッドおよび磁気記録再生装置
JPWO2020110360A1 (ja) * 2018-11-29 2021-10-21 国立研究開発法人物質・材料研究機構 磁気抵抗効果素子、磁気センサ、再生ヘッドおよび磁気記録再生装置
JP7136492B2 (ja) 2018-11-29 2022-09-13 国立研究開発法人物質・材料研究機構 磁気抵抗効果素子、磁気センサ、再生ヘッドおよび磁気記録再生装置
US11521645B2 (en) 2018-11-29 2022-12-06 National Institute For Materials Science Magnetoresistive element, magnetic sensor, reproducing head, and magnetic recording and reproducing device

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US9190078B2 (en) 2015-11-17
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US20150062735A1 (en) 2015-03-05
US9324342B2 (en) 2016-04-26

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