JP2015046214A - 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
JP2015046214A
JP2015046214A JP2014172527A JP2014172527A JP2015046214A JP 2015046214 A JP2015046214 A JP 2015046214A JP 2014172527 A JP2014172527 A JP 2014172527A JP 2014172527 A JP2014172527 A JP 2014172527A JP 2015046214 A JP2015046214 A JP 2015046214A
Authority
JP
Japan
Prior art keywords
shield
sensor stack
sensor
dual reader
track direction
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
JP2014172527A
Other languages
English (en)
Japanese (ja)
Other versions
JP2015046214A5 (enExample
Inventor
ビクター・ボリス・サポツニコフ
Boris Sapozhnikov Victor
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
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 JP2015046214A publication Critical patent/JP2015046214A/ja
Publication of JP2015046214A5 publication Critical patent/JP2015046214A5/ja
Pending legal-status Critical Current

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
    • G11B5/3945—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP2014172527A 2013-08-28 2014-08-27 二重リーダー構造 Pending JP2015046214A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/012,819 2013-08-28
US14/012,819 US9190082B2 (en) 2013-08-28 2013-08-28 Dual reader structure

Publications (2)

Publication Number Publication Date
JP2015046214A true JP2015046214A (ja) 2015-03-12
JP2015046214A5 JP2015046214A5 (enExample) 2015-05-14

Family

ID=52582907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014172527A Pending JP2015046214A (ja) 2013-08-28 2014-08-27 二重リーダー構造

Country Status (4)

Country Link
US (1) US9190082B2 (enExample)
JP (1) JP2015046214A (enExample)
KR (1) KR101636501B1 (enExample)
CN (1) CN104424960A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP2017147015A (ja) * 2016-02-18 2017-08-24 株式会社東芝 磁気記録再生装置及び磁気再生方法

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US9406321B2 (en) * 2014-02-27 2016-08-02 Seagate Technology Llc Read head with multiple reader stacks
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
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
US9390735B1 (en) * 2015-03-31 2016-07-12 Seagate Technology Llc Data reader side shield with differing stripe heights
US9552834B1 (en) * 2015-09-28 2017-01-24 Seagate Technology Llc Stabilization of one or more upper sensors in multi-sensor readers
TWI789343B (zh) * 2016-02-01 2023-01-11 丹麥商碩騰丹麥有限公司 微流體分析系統、執行分析的微流體匣及方法
US9870791B1 (en) * 2016-04-15 2018-01-16 Seagate Technology Llc Stabilization of one or more upper sensors in multi-sensor readers
US9747931B1 (en) 2016-08-16 2017-08-29 International Business Machines Corporation Tunnel magnetoresistive sensor having stabilized magnetic shield and dielectric gap sensor
US10586562B1 (en) 2017-01-13 2020-03-10 Seagate Technology Llc Read head having sensors with conflicting design characteristics
US11631424B1 (en) 2022-03-03 2023-04-18 Seagate Technology Llc Dual reader controller
US12322420B2 (en) * 2022-11-01 2025-06-03 Western Digital Technologies, Inc. Middle shields two-dimensional magnetic recording read heads
JP2024160728A (ja) * 2023-05-02 2024-11-15 株式会社東芝 磁気ヘッド、及び、磁気記録装置

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US4179720A (en) * 1976-05-13 1979-12-18 Fujitsu Limited Magnetic recorded information reproducing apparatus
JP2009134850A (ja) * 2007-11-28 2009-06-18 Tdk Corp Ｃｐｐ型磁気抵抗効果素子および磁気ディスク装置
JP2010086648A (ja) * 2008-09-29 2010-04-15 Tdk Corp 一対のシールド層に結合する一対の自由層を有する磁気抵抗効果素子
JP2012533141A (ja) * 2009-07-08 2012-12-20 シーゲイト テクノロジー エルエルシー 複合磁気シールドを有する磁気センサ

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US5323285A (en) 1992-06-23 1994-06-21 Eastman Kodak Company Shielded dual element magnetoresistive reproduce head exhibiting high density signal amplification
US5751521A (en) 1996-09-23 1998-05-12 International Business Machines Corporation Differential spin valve sensor structure
US6185079B1 (en) 1998-11-09 2001-02-06 International Business Machines Corporation Disk drive with thermal asperity reduction circuitry using a magnetic tunnel junction sensor
US6801411B1 (en) 1999-02-10 2004-10-05 Western Digital (Fremont), Inc. Dual stripe spin valve sensor without antiferromagnetic pinning layer
US6278589B1 (en) 1999-03-30 2001-08-21 International Business Machines Corporation Dual GMR sensor with a single AFM layer
US6643103B1 (en) 2000-01-05 2003-11-04 Seagate Technology Llc Very high linear resolution CPP differential dual spin valve magnetoresistive head
US6680827B2 (en) * 2000-08-07 2004-01-20 Tdk Corporation Dual spin valve CPP MR with flux guide between free layers thereof
US6597546B2 (en) 2001-04-19 2003-07-22 International Business Machines Corporation Tunnel junction sensor with an antiferromagnetic (AFM) coupled flux guide
JP3849460B2 (ja) * 2001-05-29 2006-11-22 ソニー株式会社 磁気抵抗効果素子、磁気抵抗効果型磁気センサ、および磁気抵抗効果型磁気ヘッド
US6636389B2 (en) 2001-08-03 2003-10-21 International Business Machines Corporation GMR magnetic transducer with nano-oxide exchange coupled free layers
JP2003338012A (ja) * 2002-05-15 2003-11-28 Sony Corp 磁気記録ヘッド装置、磁気再生ヘッド装置及び磁気ヘッド装置並びにこれらを用いたテープドライブ装置及びディスクドライブ装置
JP3648504B2 (ja) * 2002-09-06 2005-05-18 株式会社東芝 磁気抵抗効果素子、磁気ヘッドおよび磁気再生装置
US6819530B2 (en) 2002-09-25 2004-11-16 International Business Machines Corporation Current perpendicular to the planes (CPP) sensor with free layer stabilized by current field
US7234228B2 (en) 2002-12-03 2007-06-26 Headway Technologies, Inc. Method of fabricating novel seed layers for fabricating spin valve heads
US7298595B2 (en) 2003-09-26 2007-11-20 Hitachi Global Storage Technologies Netherlands B.V. Differential GMR sensor with multi-layer bias structure between free layers of first and second self-pinned GMR sensors
US7116530B2 (en) 2003-09-30 2006-10-03 Hitachi Global Storage Technologies Netherlands B.V. Thin differential spin valve sensor having both pinned and self pinned structures for reduced difficulty in AFM layer polarity setting
US7436632B2 (en) * 2004-06-30 2008-10-14 Seagate Technology Llc Differential/dual CPP recording head
US7551393B2 (en) * 2004-08-23 2009-06-23 International Business Machines Corporation Tape recording head with multiple planes of transducer arrays
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US7751148B1 (en) * 2006-03-27 2010-07-06 Oracle America, Inc. Multi-level, multi-track magnetic recording head
US7656610B1 (en) * 2006-03-27 2010-02-02 Storage Technology Corporation Bi-directional magnetic recording head built on a common substrate
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
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
US8797692B1 (en) * 2012-09-07 2014-08-05 Western Digital (Fremont), Llc Magnetic recording sensor with AFM exchange coupled shield stabilization
US8630069B1 (en) * 2012-10-04 2014-01-14 HGST Netherlands B.V. Magnetic shield having improved resistance to the hard bias magnetic field
US8576518B1 (en) * 2012-10-30 2013-11-05 HGST Netherlands B.V. Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor with exchange-coupled side shield structure
US8760820B1 (en) * 2012-11-30 2014-06-24 Seagate Technology Llc Magnetic element with coupled side shield
US8749926B1 (en) * 2012-11-30 2014-06-10 HGST Netherlands B.V. Scissor magnetic read head with wrap-around magnetic 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
US8780505B1 (en) * 2013-03-12 2014-07-15 Western Digital (Fremont), Llc Method and system for providing a read transducer having an improved composite magnetic shield
US8780506B1 (en) * 2013-06-20 2014-07-15 HGST Netherlands B.V. Current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor with side shields and an antiparallel structure top shield

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179720A (en) * 1976-05-13 1979-12-18 Fujitsu Limited Magnetic recorded information reproducing apparatus
JP2009134850A (ja) * 2007-11-28 2009-06-18 Tdk Corp Ｃｐｐ型磁気抵抗効果素子および磁気ディスク装置
JP2010086648A (ja) * 2008-09-29 2010-04-15 Tdk Corp 一対のシールド層に結合する一対の自由層を有する磁気抵抗効果素子
JP2012533141A (ja) * 2009-07-08 2012-12-20 シーゲイト テクノロジー エルエルシー 複合磁気シールドを有する磁気センサ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP2017147015A (ja) * 2016-02-18 2017-08-24 株式会社東芝 磁気記録再生装置及び磁気再生方法

Also Published As

Publication number Publication date
US20150062755A1 (en) 2015-03-05
US9190082B2 (en) 2015-11-17
CN104424960A (zh) 2015-03-18
KR101636501B1 (ko) 2016-07-06
KR20150026912A (ko) 2015-03-11

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