JPS57141014A - Thin film magnetic sensor - Google Patents

Thin film magnetic sensor

Info

Publication number
JPS57141014A
JPS57141014A JP56025478A JP2547881A JPS57141014A JP S57141014 A JPS57141014 A JP S57141014A JP 56025478 A JP56025478 A JP 56025478A JP 2547881 A JP2547881 A JP 2547881A JP S57141014 A JPS57141014 A JP S57141014A
Authority
JP
Japan
Prior art keywords
magnetic field
thin film
substrate
directions
orthogonal
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
JP56025478A
Other languages
Japanese (ja)
Inventor
Takashi Matsumoto
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 Electronics Inc
Original Assignee
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 Electronics Inc filed Critical Canon Electronics Inc
Priority to JP56025478A priority Critical patent/JPS57141014A/en
Publication of JPS57141014A publication Critical patent/JPS57141014A/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
    • G11B5/3945—Heads comprising more than one sensitive element
    • 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
    • G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Thin Magnetic Films (AREA)
  • Hall/Mr Elements (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE:To reduce the influence due to a temperature change, by arranging thin film element patterns on the surface and the reverse face of a substrate so that directions of axes, where magnetization is easy, of ferromagnetic thin film elements intersect on the same plane at about 90 deg.. CONSTITUTION:An MR element 7 for sensing and an MR element 8 for reference are arranged with their directions 9 of axes, where magnetization is easy, and current directions orthogonal to each other, and a signal magnetic field HS is introduced in a direction approximately orthogonal to the direction 9 of the MR element 7, and these elements are laminated through a substrate. When the signal magnetic field HS is applied in the direction orthogonal to the MR element 7 and is applied in parallel to the MR element 8, the resistance value of the MR element 7 is changed by the intensity of the magnetic field if the value of theta is made constant, and the resistance value of the MR element 8 is constant independently of the intensity of the magnetic field. Thus, a very stable sensor which is not affected by the temperature change due to sliding of a recording medium and the change of the ambient temperature of the substrate is obtained.
JP56025478A 1981-02-25 1981-02-25 Thin film magnetic sensor Pending JPS57141014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56025478A JPS57141014A (en) 1981-02-25 1981-02-25 Thin film magnetic sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56025478A JPS57141014A (en) 1981-02-25 1981-02-25 Thin film magnetic sensor

Publications (1)

Publication Number Publication Date
JPS57141014A true JPS57141014A (en) 1982-09-01

Family

ID=12167149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56025478A Pending JPS57141014A (en) 1981-02-25 1981-02-25 Thin film magnetic sensor

Country Status (1)

Country Link
JP (1) JPS57141014A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112421A (en) * 1982-12-16 1984-06-28 Nec Corp Magnetic head
JPS59166125U (en) * 1983-04-21 1984-11-07 ティーディーケイ株式会社 magnetic sensor
JPS6013415U (en) * 1983-04-21 1985-01-29 ティーディーケイ株式会社 magnetic sensor
JPS61112977A (en) * 1984-11-08 1986-05-30 Matsushita Electric Ind Co Ltd Apparatus for detecting magnetic field
JPS61295606A (en) * 1985-06-24 1986-12-26 Nec Corp Soft magnetic thin film core

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112421A (en) * 1982-12-16 1984-06-28 Nec Corp Magnetic head
JPS59166125U (en) * 1983-04-21 1984-11-07 ティーディーケイ株式会社 magnetic sensor
JPS6013415U (en) * 1983-04-21 1985-01-29 ティーディーケイ株式会社 magnetic sensor
JPS61112977A (en) * 1984-11-08 1986-05-30 Matsushita Electric Ind Co Ltd Apparatus for detecting magnetic field
JPS61295606A (en) * 1985-06-24 1986-12-26 Nec Corp Soft magnetic thin film core

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