JPS57186223A - Magnetoresistance effect type magnetic head - Google Patents

Magnetoresistance effect type magnetic head

Info

Publication number
JPS57186223A
JPS57186223A JP7077181A JP7077181A JPS57186223A JP S57186223 A JPS57186223 A JP S57186223A JP 7077181 A JP7077181 A JP 7077181A JP 7077181 A JP7077181 A JP 7077181A JP S57186223 A JPS57186223 A JP S57186223A
Authority
JP
Japan
Prior art keywords
film
base
layer
silicon
magnetic 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.)
Pending
Application number
JP7077181A
Other languages
Japanese (ja)
Inventor
Yasushi Toda
Takeshi Sawada
Hiroichi Goto
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.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP7077181A priority Critical patent/JPS57186223A/en
Publication of JPS57186223A publication Critical patent/JPS57186223A/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
    • G11B5/3932—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

Landscapes

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

Abstract

PURPOSE:To increase the reproduction frequency characteristics, through excellent surface performance and accuracy of a silicon base, by adopting a construction where a MR film and a magnetic separation layr on the silicon base. CONSTITUTION:Number 41 shows a base made of a silicon or the like, and a non-conductive film layer 42 made of magnesium oxide is formed at the side surface entirely. A MR film 43 is formed on the surface of the layer 42. The MR film 43 is formed with 81.5% Ni, 16% Fe and 2.5% Cr, 340Angstrom thick under 2.4X10<-7> Torr. with the vacuum deposition method. A magnetite separation layer 44 is formed at a part of the film 43 and the layer 44 gives a bias to the MR element. The MR head reproducing end surface of the MR film 43 depends on the surface performance of the base 41 of silicon single crystal. Thus, the surface performance of the base 41 gives a large effect on the reproduction frequencey characteristics.
JP7077181A 1981-05-13 1981-05-13 Magnetoresistance effect type magnetic head Pending JPS57186223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7077181A JPS57186223A (en) 1981-05-13 1981-05-13 Magnetoresistance effect type magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7077181A JPS57186223A (en) 1981-05-13 1981-05-13 Magnetoresistance effect type magnetic head

Publications (1)

Publication Number Publication Date
JPS57186223A true JPS57186223A (en) 1982-11-16

Family

ID=13441110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7077181A Pending JPS57186223A (en) 1981-05-13 1981-05-13 Magnetoresistance effect type magnetic head

Country Status (1)

Country Link
JP (1) JPS57186223A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492889A2 (en) * 1990-12-18 1992-07-01 Pioneer Electronic Corporation Crosstalk quantity detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492889A2 (en) * 1990-12-18 1992-07-01 Pioneer Electronic Corporation Crosstalk quantity detector

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