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JPS56165925A - Magnetoresistance effect type head - Google Patents

Magnetoresistance effect type head

Info

Publication number
JPS56165925A
JPS56165925A JP7192680A JP7192680A JPS56165925A JP S56165925 A JPS56165925 A JP S56165925A JP 7192680 A JP7192680 A JP 7192680A JP 7192680 A JP7192680 A JP 7192680A JP S56165925 A JPS56165925 A JP S56165925A
Authority
JP
Japan
Prior art keywords
film
magnetic
magnetoresistance effect
magnetic field
current
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
JP7192680A
Other languages
Japanese (ja)
Inventor
Tatsuo Ozeki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7192680A priority Critical patent/JPS56165925A/en
Publication of JPS56165925A publication Critical patent/JPS56165925A/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
    • 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
    • G11B5/3935—Flux closure films not being part of the track flux guides
    • G11B5/3938—Flux closure films not being part of the track flux guides the flux closure films being used for absorbing or reducing demagnetisating or saturating fields
    • 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
    • G11B5/398—Specially shaped layers

Landscapes

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

Abstract

PURPOSE:To obtain a magnetoresistance effect type head which is eliminated of Barkhausen noise by applying the magnetic field in the specific direction to a thin film having magnetoresistance effect and forming the magnetic thin film as a single magnetic domain. CONSTITUTION:A magnetic material film 6 having magnetoresistance effect is formed by having deposited in a U shape on the surface of an insulating substrate 1 by vapor deposition, plating etc. of permalloy or the like, and a magnetic material film 7 is a magnetic material film of permalloy or the like provided between the opening ends of the film 6 by way of an insulating film 8 of glass, etc. If current flows in order of a lead-out wire 3-the film 6-a lead-out wire 4 in order to convert the change in the resistance of the film 6 to change in voltage, this current is interlinked with the closed magnetic circuit by the films 6, 7 and therefore it receives the magnetic field in the specific direction determined by the direction of the current. Hence, the part of the film 6 sandwiched between the wires 3 and 4 assumes roughly a single magnetic structure. As a result, the film 6 senses only to the magnetic field rotating with respect to external magnetic fields and this makes it possible to considerably reduce Barkhausen noise.
JP7192680A 1980-05-27 1980-05-27 Magnetoresistance effect type head Pending JPS56165925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7192680A JPS56165925A (en) 1980-05-27 1980-05-27 Magnetoresistance effect type head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7192680A JPS56165925A (en) 1980-05-27 1980-05-27 Magnetoresistance effect type head

Publications (1)

Publication Number Publication Date
JPS56165925A true JPS56165925A (en) 1981-12-19

Family

ID=13474615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7192680A Pending JPS56165925A (en) 1980-05-27 1980-05-27 Magnetoresistance effect type head

Country Status (1)

Country Link
JP (1) JPS56165925A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539542A1 (en) * 1983-01-14 1984-07-20 Magnetic Peripherals Inc MAGNETIC HEAD OF READING
JPS6240610A (en) * 1985-08-15 1987-02-21 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Magnetically resisting read converter
JPS63285719A (en) * 1987-05-15 1988-11-22 Fujitsu Ltd Magneto-resistance effect type magnetic head
US4885649A (en) * 1987-04-01 1989-12-05 Digital Equipment Corporation Thin film head having a magneto-restrictive read element
US5075956A (en) * 1988-03-16 1991-12-31 Digital Equipment Corporation Method of making recording heads with side shields
US5159511A (en) * 1987-04-01 1992-10-27 Digital Equipment Corporation Biasing conductor for MR head
US5808843A (en) * 1991-05-31 1998-09-15 Hitachi, Ltd. Magnetoresistance effect reproduction head

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539542A1 (en) * 1983-01-14 1984-07-20 Magnetic Peripherals Inc MAGNETIC HEAD OF READING
JPS59129922A (en) * 1983-01-14 1984-07-26 シーゲイト　テクノロジー　インターナショナル Magnetic head
JPS6240610A (en) * 1985-08-15 1987-02-21 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Magnetically resisting read converter
US4885649A (en) * 1987-04-01 1989-12-05 Digital Equipment Corporation Thin film head having a magneto-restrictive read element
US5159511A (en) * 1987-04-01 1992-10-27 Digital Equipment Corporation Biasing conductor for MR head
JPS63285719A (en) * 1987-05-15 1988-11-22 Fujitsu Ltd Magneto-resistance effect type magnetic head
US5075956A (en) * 1988-03-16 1991-12-31 Digital Equipment Corporation Method of making recording heads with side shields
US5808843A (en) * 1991-05-31 1998-09-15 Hitachi, Ltd. Magnetoresistance effect reproduction head

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