JPS641112A - Magneto-resistance effect type head - Google Patents

Magneto-resistance effect type head

Info

Publication number
JPS641112A
JPS641112A JP15544987A JP15544987A JPS641112A JP S641112 A JPS641112 A JP S641112A JP 15544987 A JP15544987 A JP 15544987A JP 15544987 A JP15544987 A JP 15544987A JP S641112 A JPS641112 A JP S641112A
Authority
JP
Japan
Prior art keywords
magnetic
film
magneto
resistance effect
effect type
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
JP15544987A
Other languages
Japanese (ja)
Other versions
JPH011112A (en
Inventor
Hitoshi Nakamura
Masahiro Kitada
Hideo Tanabe
Noboru Shimizu
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62-155449A priority Critical patent/JPH011112A/en
Priority claimed from JP62-155449A external-priority patent/JPH011112A/en
Publication of JPS641112A publication Critical patent/JPS641112A/en
Publication of JPH011112A publication Critical patent/JPH011112A/en
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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To prevent production of minute magnetic domain generated easily from both ends in a direction of magnetic sensitive track width by providing a hard magnetic material so as to be in contact with the vicinity or both ends in the broadwise direction of the magnetic sensitive track. CONSTITUTION:A lower insulation layer 3 is formed on a magnetic base 10 used in common with the shield film, the magneto-resistance effect film 1 is generated continuously to apply patterning. Then the hard magnetic film 4 is formed to apply patterning. The film thickness of the film 4 depends on the quantity of the self-energy of the film or the shape of head, but generally within a range of 20-200nm. Thus, the anti-magnetic field near both ends of the track is reduced by the leakage magnetic field from the hard magnetic material provided at both ends in the direction of magnetic sensitive track width to prevent the production of minute magnetic domain.
JP62-155449A 1987-06-24 Magnetoresistive head Pending JPH011112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-155449A JPH011112A (en) 1987-06-24 Magnetoresistive head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-155449A JPH011112A (en) 1987-06-24 Magnetoresistive head

Publications (2)

Publication Number Publication Date
JPS641112A true JPS641112A (en) 1989-01-05
JPH011112A JPH011112A (en) 1989-01-05

Family

ID=

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03125311A (en) * 1989-10-10 1991-05-28 Internatl Business Mach Corp <Ibm> Converter for reading reluctance with hard magnetic bias and method of manufacturing the same
EP0585008A3 (en) * 1992-08-25 1995-11-08 Seagate Technology A magnetoresistive sensor and method of making the same
EP0634740A3 (en) * 1993-07-13 1996-01-31 Ibm Magnetoresistive read transducer.
US5664316A (en) * 1995-01-17 1997-09-09 International Business Machines Corporation Method of manufacturing magnetoresistive read transducer having a contiguous longitudinal bias layer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597021A (en) * 1979-01-16 1980-07-23 Matsushita Electric Ind Co Ltd Thin-film magnetic head and its manufacture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597021A (en) * 1979-01-16 1980-07-23 Matsushita Electric Ind Co Ltd Thin-film magnetic head and its manufacture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03125311A (en) * 1989-10-10 1991-05-28 Internatl Business Mach Corp <Ibm> Converter for reading reluctance with hard magnetic bias and method of manufacturing the same
EP0585008A3 (en) * 1992-08-25 1995-11-08 Seagate Technology A magnetoresistive sensor and method of making the same
US5736060A (en) * 1992-08-25 1998-04-07 Seagate Technology, Inc. Read sensitivity MR head using permanent magnet longitudinal stabilization
US5737155A (en) * 1992-08-25 1998-04-07 Seagate Technology, Inc. Read sensitivity MR head using permanent magnet longitudinal stabilization
EP0896324A1 (en) * 1992-08-25 1999-02-10 Seagate Technology International A magnetoresistive sensor & method of making the same
EP0634740A3 (en) * 1993-07-13 1996-01-31 Ibm Magnetoresistive read transducer.
US5664316A (en) * 1995-01-17 1997-09-09 International Business Machines Corporation Method of manufacturing magnetoresistive read transducer having a contiguous longitudinal bias layer

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