JP7741710B2 - 磁気ヘッド及び磁気記録装置 - Google Patents

磁気ヘッド及び磁気記録装置

Info

Publication number
JP7741710B2
JP7741710B2 JP2021197483A JP2021197483A JP7741710B2 JP 7741710 B2 JP7741710 B2 JP 7741710B2 JP 2021197483 A JP2021197483 A JP 2021197483A JP 2021197483 A JP2021197483 A JP 2021197483A JP 7741710 B2 JP7741710 B2 JP 7741710B2
Authority
JP
Japan
Prior art keywords
magnetic
magnetic layer
thickness
layer
head
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.)
Active
Application number
JP2021197483A
Other languages
English (en)
Japanese (ja)
Other versions
JP2023083663A5 (https=
JP2023083663A (ja
Inventor
裕治 中川
直幸 成田
雅幸 高岸
知幸 前田
鶴美 永澤
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.)
Toshiba Corp
Toshiba Electronic Devices and Storage Corp
Original Assignee
Toshiba Corp
Toshiba Electronic Devices and Storage Corp
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 Toshiba Corp, Toshiba Electronic Devices and Storage Corp filed Critical Toshiba Corp
Priority to JP2021197483A priority Critical patent/JP7741710B2/ja
Priority to US17/813,256 priority patent/US11881234B2/en
Priority to CN202210926360.9A priority patent/CN116230025B/zh
Publication of JP2023083663A publication Critical patent/JP2023083663A/ja
Publication of JP2023083663A5 publication Critical patent/JP2023083663A5/ja
Application granted granted Critical
Publication of JP7741710B2 publication Critical patent/JP7741710B2/ja
Active 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
JP2021197483A 2021-12-06 2021-12-06 磁気ヘッド及び磁気記録装置 Active JP7741710B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021197483A JP7741710B2 (ja) 2021-12-06 2021-12-06 磁気ヘッド及び磁気記録装置
US17/813,256 US11881234B2 (en) 2021-12-06 2022-07-18 Magnetic head and magnetic recording device
CN202210926360.9A CN116230025B (zh) 2021-12-06 2022-08-03 磁头及磁记录装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021197483A JP7741710B2 (ja) 2021-12-06 2021-12-06 磁気ヘッド及び磁気記録装置

Publications (3)

Publication Number Publication Date
JP2023083663A JP2023083663A (ja) 2023-06-16
JP2023083663A5 JP2023083663A5 (https=) 2024-07-09
JP7741710B2 true JP7741710B2 (ja) 2025-09-18

Family

ID=86570277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021197483A Active JP7741710B2 (ja) 2021-12-06 2021-12-06 磁気ヘッド及び磁気記録装置

Country Status (3)

Country Link
US (1) US11881234B2 (https=)
JP (1) JP7741710B2 (https=)
CN (1) CN116230025B (https=)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7600033B2 (ja) 2021-05-28 2024-12-16 株式会社東芝 磁気ヘッド及び磁気記録装置
JP7779761B2 (ja) 2022-02-21 2025-12-03 株式会社東芝 磁気ヘッド及び磁気記録装置
JP2024060942A (ja) 2022-10-20 2024-05-07 株式会社東芝 磁気ヘッド及び磁気記録装置
JP2024081173A (ja) 2022-12-06 2024-06-18 株式会社東芝 磁気記録媒体及び磁気記録装置
JP2024083047A (ja) 2022-12-09 2024-06-20 株式会社東芝 磁気記録装置
JP2024123728A (ja) 2023-03-01 2024-09-12 株式会社東芝 磁気ヘッド及び磁気記録装置
JP2024123726A (ja) 2023-03-01 2024-09-12 株式会社東芝 磁気ヘッド及び磁気記録装置
JP2024123729A (ja) 2023-03-01 2024-09-12 株式会社東芝 磁気ヘッド及び磁気記録装置
JP2024123727A (ja) 2023-03-01 2024-09-12 株式会社東芝 磁気ヘッド及び磁気記録装置
JP2024123725A (ja) 2023-03-01 2024-09-12 株式会社東芝 磁気ヘッド及び磁気記録装置
JP2025109063A (ja) * 2024-01-11 2025-07-24 株式会社東芝 磁気ヘッド及び磁気記録装置

Citations (2)

* Cited by examiner, † Cited by third party
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JP2008277586A (ja) 2007-04-27 2008-11-13 Toshiba Corp 磁気素子、磁気記録ヘッド及び磁気記録装置
JP2013047999A (ja) 2011-08-29 2013-03-07 Hitachi Ltd 磁気記録ヘッド、磁気記録装置

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US7616412B2 (en) 2006-07-21 2009-11-10 Carnegie Melon University Perpendicular spin-torque-driven magnetic oscillator
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JP5268289B2 (ja) 2007-06-07 2013-08-21 株式会社東芝 磁気記録ヘッド及び磁気記録装置
KR20080108016A (ko) 2007-06-07 2008-12-11 가부시끼가이샤 도시바 자기 기록 헤드 및 자기 기록 장치
US8994587B2 (en) * 2010-05-14 2015-03-31 Qualcomm Incorporated Compressed sensing for navigation data
JP2009070439A (ja) * 2007-09-11 2009-04-02 Toshiba Corp 磁気記録ヘッド及び磁気記録装置
US8279548B2 (en) * 2010-04-20 2012-10-02 Tdk Corporation Microwave oscillating element and thin film magnetic head therewith
JP5059924B2 (ja) 2010-09-16 2012-10-31 株式会社日立製作所 スピントルク発振器、並びにそれを搭載した磁気記録ヘッド及び磁気記録装置
JP2012119027A (ja) * 2010-11-30 2012-06-21 Toshiba Corp 磁気記録ヘッド、磁気ヘッドアセンブリおよび磁気記録装置
JP5787524B2 (ja) 2011-01-07 2015-09-30 株式会社東芝 記録ヘッド、磁気ヘッドアセンブリ、及び磁気記録装置
JP2012203916A (ja) * 2011-03-23 2012-10-22 Toshiba Corp 磁気ヘッド、磁気ヘッドアセンブリ及び磁気記録再生装置
JP2014157649A (ja) * 2013-02-18 2014-08-28 Toshiba Corp 磁気抵抗効果素子、磁気ヘッド、磁気ヘッドアセンブリ及び磁気記録再生装置
US9064508B1 (en) * 2014-03-17 2015-06-23 HGST Netherlands B.V. Pile spin-torque oscillator with AF-mode oscillation for generating high AC-field in microwave-assisted magnetic recording
KR20150138594A (ko) * 2014-05-30 2015-12-10 한국전자통신연구원 클라우드 게임 서비스를 위한 사용자 인터페이스 제공 장치 및 방법
JP6130886B2 (ja) * 2015-09-16 2017-05-17 株式会社東芝 磁気素子及び記憶装置
CN106558321A (zh) * 2015-09-25 2017-04-05 Hgst荷兰有限公司 负极化自旋转矩振荡器
CN105633111B (zh) * 2016-03-08 2018-09-21 华中科技大学 一种电场辅助写入型磁隧道结单元及其写入方法
JP6588860B2 (ja) * 2016-05-13 2019-10-09 株式会社東芝 発振器及び演算装置
JP6563861B2 (ja) * 2016-06-06 2019-08-21 株式会社東芝 磁気記録再生装置
JP6538626B2 (ja) * 2016-08-30 2019-07-03 株式会社東芝 磁気ヘッド及び磁気記録再生装置
TWI753083B (zh) * 2017-03-10 2022-01-21 西門菲莎大學 磁性耦合層、包含磁性耦合層的結構以及其製造及/或使用方法
JP2019009547A (ja) * 2017-06-22 2019-01-17 株式会社東芝 発振器及び演算装置
JP7166204B2 (ja) * 2019-03-11 2022-11-07 株式会社東芝 磁気ヘッド及び磁気記録装置
JP7159085B2 (ja) * 2019-03-11 2022-10-24 株式会社東芝 磁気記録装置及び磁気ヘッド
JP7319505B2 (ja) * 2019-09-06 2023-08-02 株式会社東芝 磁気ヘッド及び磁気記録装置
US11437059B2 (en) * 2019-11-07 2022-09-06 Kabushiki Kaisha Toshiba Magnetic head and magnetic recording device with stacked body material configurations
JP7379272B2 (ja) * 2020-06-01 2023-11-14 株式会社東芝 磁気ヘッド及び磁気記録装置
JP7383576B2 (ja) 2020-07-01 2023-11-20 株式会社東芝 磁気ヘッド及び磁気記録装置
JP7600033B2 (ja) * 2021-05-28 2024-12-16 株式会社東芝 磁気ヘッド及び磁気記録装置

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JP2008277586A (ja) 2007-04-27 2008-11-13 Toshiba Corp 磁気素子、磁気記録ヘッド及び磁気記録装置
JP2013047999A (ja) 2011-08-29 2013-03-07 Hitachi Ltd 磁気記録ヘッド、磁気記録装置

Also Published As

Publication number Publication date
CN116230025A (zh) 2023-06-06
CN116230025B (zh) 2025-07-11
US20230178102A1 (en) 2023-06-08
US11881234B2 (en) 2024-01-23
JP2023083663A (ja) 2023-06-16

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