JPS55129923A - Magnetoresistance effect type magnetic head - Google Patents

Magnetoresistance effect type magnetic head

Info

Publication number
JPS55129923A
JPS55129923A JP3740279A JP3740279A JPS55129923A JP S55129923 A JPS55129923 A JP S55129923A JP 3740279 A JP3740279 A JP 3740279A JP 3740279 A JP3740279 A JP 3740279A JP S55129923 A JPS55129923 A JP S55129923A
Authority
JP
Japan
Prior art keywords
film
edge part
magnetic head
field suppression
insulating
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.)
Granted
Application number
JP3740279A
Other languages
Japanese (ja)
Other versions
JPS6224849B2 (en
Inventor
Kunio Hata
Susumu Kawakami
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP3740279A priority Critical patent/JPS55129923A/en
Publication of JPS55129923A publication Critical patent/JPS55129923A/en
Publication of JPS6224849B2 publication Critical patent/JPS6224849B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To improve read performance by forming a magnetic material film for demagnetizing field suppression on a substrate with the upper part so extended that the lower edge part may be superposed onto the upper edge part of the MR element of a magnetoresistance effect (MR) magnetic head through an insulating material thin film. CONSTITUTION:MR element 2 consisting of NiFe alloy, etc., is formed on the one- side end face opposite to magnetic recording medium 6 of insulating substrate 1 by evaporation adhesion, and conductive terminal 3 is provided oppositely in both longitudinal edge parts of element 2. Mangetic material film 4 for diamagnetic field suppression is so evaporation-adhered that lower edge part 4a of film 4 may be superposed onto the upper edge part of element 2 through insulating material film 7. The thickness of insulating film 7 is set to 1mu or less to improve diamagnetic field suppression action. The effect is sufficient if the width of superposition part 4 between element 2 and film 4 is several mu. Thus, the reproducing senstivity of the magnetic head is improved.
JP3740279A 1979-03-29 1979-03-29 Magnetoresistance effect type magnetic head Granted JPS55129923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3740279A JPS55129923A (en) 1979-03-29 1979-03-29 Magnetoresistance effect type magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3740279A JPS55129923A (en) 1979-03-29 1979-03-29 Magnetoresistance effect type magnetic head

Publications (2)

Publication Number Publication Date
JPS55129923A true JPS55129923A (en) 1980-10-08
JPS6224849B2 JPS6224849B2 (en) 1987-05-30

Family

ID=12496526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3740279A Granted JPS55129923A (en) 1979-03-29 1979-03-29 Magnetoresistance effect type magnetic head

Country Status (1)

Country Link
JP (1) JPS55129923A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205921A (en) * 1982-05-26 1983-12-01 Alps Electric Co Ltd Magnetic head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51137406A (en) * 1975-05-23 1976-11-27 Nec Corp Reluctance effect head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51137406A (en) * 1975-05-23 1976-11-27 Nec Corp Reluctance effect head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205921A (en) * 1982-05-26 1983-12-01 Alps Electric Co Ltd Magnetic head

Also Published As

Publication number Publication date
JPS6224849B2 (en) 1987-05-30

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