CN116230025B - 磁头及磁记录装置 - Google Patents

磁头及磁记录装置 Download PDF

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Publication number
CN116230025B
CN116230025B CN202210926360.9A CN202210926360A CN116230025B CN 116230025 B CN116230025 B CN 116230025B CN 202210926360 A CN202210926360 A CN 202210926360A CN 116230025 B CN116230025 B CN 116230025B
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CN
China
Prior art keywords
magnetic
layer
thickness
magnetic 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
CN202210926360.9A
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English (en)
Chinese (zh)
Other versions
CN116230025A (zh
Inventor
中川裕治
成田直幸
高岸雅幸
前田知幸
永泽鹤美
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
Publication of CN116230025A publication Critical patent/CN116230025A/zh
Application granted granted Critical
Publication of CN116230025B publication Critical patent/CN116230025B/zh
Active 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
    • G11B5/187—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)
CN202210926360.9A 2021-12-06 2022-08-03 磁头及磁记录装置 Active CN116230025B (zh)

Applications Claiming Priority (2)

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
JP2021-197483 2021-12-06

Publications (2)

Publication Number Publication Date
CN116230025A CN116230025A (zh) 2023-06-06
CN116230025B true CN116230025B (zh) 2025-07-11

Family

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Family Applications (1)

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CN202210926360.9A Active CN116230025B (zh) 2021-12-06 2022-08-03 磁头及磁记录装置

Country Status (3)

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

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* 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

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CN111681684A (zh) * 2019-03-11 2020-09-18 株式会社东芝 磁头以及磁记录装置

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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
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KR20080108016A (ko) 2007-06-07 2008-12-11 가부시끼가이샤 도시바 자기 기록 헤드 및 자기 기록 장치
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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
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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
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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
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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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Also Published As

Publication number Publication date
CN116230025A (zh) 2023-06-06
US20230178102A1 (en) 2023-06-08
US11881234B2 (en) 2024-01-23
JP7741710B2 (ja) 2025-09-18
JP2023083663A (ja) 2023-06-16

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