KR101636501B1 - 이중 리더 구조 - Google Patents

이중 리더 구조 Download PDF

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Publication number
KR101636501B1
KR101636501B1 KR1020140112318A KR20140112318A KR101636501B1 KR 101636501 B1 KR101636501 B1 KR 101636501B1 KR 1020140112318 A KR1020140112318 A KR 1020140112318A KR 20140112318 A KR20140112318 A KR 20140112318A KR 101636501 B1 KR101636501 B1 KR 101636501B1
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KR
South Korea
Prior art keywords
shield
sensor stack
sensor
side shields
layer
Prior art date
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Expired - Fee Related
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KR1020140112318A
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English (en)
Korean (ko)
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KR20150026912A (ko
Inventor
빅터 보리스 사포즈니코브
모함메드 샤리아 울라 패트와리
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시게이트 테크놀로지 엘엘씨
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Publication of KR20150026912A publication Critical patent/KR20150026912A/ko
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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
    • G11B5/127—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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
KR1020140112318A 2013-08-28 2014-08-27 이중 리더 구조 Expired - Fee Related KR101636501B1 (ko)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
KR20150026912A KR20150026912A (ko) 2015-03-11
KR101636501B1 true KR101636501B1 (ko) 2016-07-06

Family

ID=52582907

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140112318A Expired - Fee Related KR101636501B1 (ko) 2013-08-28 2014-08-27 이중 리더 구조

Country Status (4)

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

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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
US9401163B2 (en) 2014-07-03 2016-07-26 Seagate Technology Llc Multi-stack reader with split middle shield
US9361910B2 (en) 2014-07-03 2016-06-07 Seagate Technology Llc Leads coupled to top and bottom reader stacks of a reader
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
US9536549B1 (en) * 2015-08-14 2017-01-03 Seagate Technology Llc Multiple sensor magnetic reproducing device with reduced inter-sensor spacing
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
US9824703B2 (en) * 2016-02-18 2017-11-21 Kabushiki Kaisha Toshiba Magnetic recording and reproducing device having magnetic head with first and second reproducing element portions and magnetic reproducing method
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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US20090279213A1 (en) * 2008-05-09 2009-11-12 Headway Technologies, Inc. Stabilized shields for magnetic recording heads

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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
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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
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Publication number Priority date Publication date Assignee Title
US20090279213A1 (en) * 2008-05-09 2009-11-12 Headway Technologies, Inc. Stabilized shields for magnetic recording heads

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M.Takagishi et al., ‘Magnetoresistance Ratio and Resistance Area Design of CPP-MR Film for 2-5 Tb/in2 Read Sensors,’ IEEE Transactions on Magnetics, June 2010, 46(6), 2086-2089 (2010.06.)*

Also Published As

Publication number Publication date
KR20150026912A (ko) 2015-03-11
JP2015046214A (ja) 2015-03-12
US9190082B2 (en) 2015-11-17
CN104424960A (zh) 2015-03-18
US20150062755A1 (en) 2015-03-05

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