HK1011451A1 - Magnetic transducer and thin film magnetic head - Google Patents

Magnetic transducer and thin film magnetic head

Info

Publication number
HK1011451A1
HK1011451A1 HK98112538A HK98112538A HK1011451A1 HK 1011451 A1 HK1011451 A1 HK 1011451A1 HK 98112538 A HK98112538 A HK 98112538A HK 98112538 A HK98112538 A HK 98112538A HK 1011451 A1 HK1011451 A1 HK 1011451A1
Authority
HK
Hong Kong
Prior art keywords
thin film
magnetic
transducer
magnetic head
film magnetic
Prior art date
Application number
HK98112538A
Other languages
English (en)
Inventor
Yasufumi Uno
Kiyosumi Kanazawa
Masato Takahashi
Original Assignee
Tdk 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 Tdk Corp filed Critical Tdk Corp
Publication of HK1011451A1 publication Critical patent/HK1011451A1/xx

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
    • G11B5/399—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 with intrinsic biasing, e.g. provided by equipotential strips
    • 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
    • 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
    • G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
    • G11B5/3932—Magnetic biasing films
    • 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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
HK98112538A 1994-09-16 1998-11-30 Magnetic transducer and thin film magnetic head HK1011451A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6222121A JPH0887721A (ja) 1994-09-16 1994-09-16 磁気変換素子及び薄膜磁気ヘッド

Publications (1)

Publication Number Publication Date
HK1011451A1 true HK1011451A1 (en) 1999-07-09

Family

ID=16777497

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98112538A HK1011451A1 (en) 1994-09-16 1998-11-30 Magnetic transducer and thin film magnetic head

Country Status (4)

Country Link
US (1) US5774309A (xx)
JP (1) JPH0887721A (xx)
GB (1) GB2293265B (xx)
HK (1) HK1011451A1 (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785101B2 (en) 2001-07-12 2004-08-31 Hitachi Global Storage Technologies Netherlands B.V. Overlaid lead giant magnetoresistive head with side reading reduction
JP2005056538A (ja) * 2003-08-07 2005-03-03 Tdk Corp 薄膜磁気ヘッドの製造方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024489A (en) * 1975-11-18 1977-05-17 International Business Machines Corporation Magnetoresistive sandwich including sensor electrically parallel with electrical shunt and magnetic biasing layers
JPH0330107A (ja) * 1989-06-28 1991-02-08 Hitachi Ltd 磁気ヘッドおよびその製造方法
US5018037A (en) * 1989-10-10 1991-05-21 Krounbi Mohamad T Magnetoresistive read transducer having hard magnetic bias
JP2776948B2 (ja) * 1990-03-19 1998-07-16 株式会社日立製作所 薄膜磁気ヘッドおよびその製造方法
JPH03283477A (ja) * 1990-03-30 1991-12-13 Hitachi Ltd 磁気抵抗効果素子とその製造方法
JP2620500B2 (ja) * 1992-10-02 1997-06-11 インターナショナル・ビジネス・マシーンズ・コーポレイション 磁気抵抗センサ及びその製造方法
JP3209290B2 (ja) * 1992-10-20 2001-09-17 ティーディーケイ株式会社 薄膜磁気ヘッド及び磁気ディスク装置
JP3208906B2 (ja) * 1993-03-24 2001-09-17 松下電器産業株式会社 磁気抵抗効果型磁気ヘッド
US5966272A (en) * 1993-06-21 1999-10-12 Read-Rite Corporation Magnetoresistive read head having an exchange layer
EP0634740B1 (en) * 1993-07-13 1999-09-22 International Business Machines Corporation Magnetoresistive read transducer
US5442507A (en) * 1993-09-24 1995-08-15 Matsushita Electric Industrial Co., Ltd. Magnetoresistive magnetic head
JPH07272222A (ja) * 1994-01-03 1995-10-20 Read Rite Corp 磁気抵抗読み取りトランスジューサ
US5528440A (en) * 1994-07-26 1996-06-18 International Business Machines Corporation Spin valve magnetoresistive element with longitudinal exchange biasing of end regions abutting the free layer, and magnetic recording system using the element
US5434826A (en) * 1994-09-26 1995-07-18 Read-Rite Corporation Multilayer hard bias films for longitudinal biasing in magnetoresistive transducer

Also Published As

Publication number Publication date
GB2293265B (en) 1998-10-14
GB2293265A (en) 1996-03-20
US5774309A (en) 1998-06-30
JPH0887721A (ja) 1996-04-02
GB9518874D0 (en) 1995-11-15

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)