JPS57208624A - Magneto-resistance effect head - Google Patents

Magneto-resistance effect head

Info

Publication number
JPS57208624A
JPS57208624A JP9388781A JP9388781A JPS57208624A JP S57208624 A JPS57208624 A JP S57208624A JP 9388781 A JP9388781 A JP 9388781A JP 9388781 A JP9388781 A JP 9388781A JP S57208624 A JPS57208624 A JP S57208624A
Authority
JP
Japan
Prior art keywords
thin film
electrode
magneto
resistance effect
ferromagnetic thin
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
JP9388781A
Other languages
Japanese (ja)
Inventor
Nobuhiro Tokuyado
Katsuyuki Tanaka
Isao Oshima
Masakatsu Saito
Masamichi Yamada
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 JP9388781A priority Critical patent/JPS57208624A/en
Publication of JPS57208624A publication Critical patent/JPS57208624A/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

Landscapes

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

Abstract

PURPOSE:To hold magnetizing orientation at the initial value, by using plural parallelogram-shape ferromagnetic thin films having the magnetization oriented in the lengthwise direction and connecting electrically the lengthwise end faces to each other by means of a nonmagnetic conductor thin film. CONSTITUTION:An electrode 4 is provided across a magneto-resistance effect element (MR element) composed of a ferromagnetic thin film and vertically to a recording medium. A constant current is flowed to the electrode 4, and the change of resistance is detected for the element 4 by a signal magnetic field of the recording medium and in the form of a change of voltage. The element 4 is obtained by forming a parallelogram-shape ferromagnetic thin film 5 having the magnetization oriented in the lengthwise direction by an etching process, etc. Then the lengthwise end faces of the film 5 are connected electrically to each other by means of a nonmagnetic thin film 6 and then connected to the electrode 4. In such constitution, the inclination of the current and magnetization can be set at 45 deg., i.e., an optimum working point.
JP9388781A 1981-06-19 1981-06-19 Magneto-resistance effect head Pending JPS57208624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9388781A JPS57208624A (en) 1981-06-19 1981-06-19 Magneto-resistance effect head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9388781A JPS57208624A (en) 1981-06-19 1981-06-19 Magneto-resistance effect head

Publications (1)

Publication Number Publication Date
JPS57208624A true JPS57208624A (en) 1982-12-21

Family

ID=14094985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9388781A Pending JPS57208624A (en) 1981-06-19 1981-06-19 Magneto-resistance effect head

Country Status (1)

Country Link
JP (1) JPS57208624A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4663683A (en) * 1982-11-11 1987-05-05 Matsushita Electric Industrial Co., Ltd. Magnetoresistive thin film head
FR2656454A1 (en) * 1989-12-22 1991-06-28 Thomson Csf MULTIPISTE READING HEAD.
US5737156A (en) * 1993-11-08 1998-04-07 Seagate Technology, Inc. Barberpole MR sensor having interleaved permanent magnet and magnetoresistive segments
US6282067B1 (en) * 1998-09-18 2001-08-28 Nippon Hoso Kyokai Magnetic reproducing head having a magnetoresistive effect

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4663683A (en) * 1982-11-11 1987-05-05 Matsushita Electric Industrial Co., Ltd. Magnetoresistive thin film head
FR2656454A1 (en) * 1989-12-22 1991-06-28 Thomson Csf MULTIPISTE READING HEAD.
US5420734A (en) * 1989-12-22 1995-05-30 Thomson-Csf Multitrack read head having a matrix network of elementary magneto-resistive heads
US5737156A (en) * 1993-11-08 1998-04-07 Seagate Technology, Inc. Barberpole MR sensor having interleaved permanent magnet and magnetoresistive segments
US6282067B1 (en) * 1998-09-18 2001-08-28 Nippon Hoso Kyokai Magnetic reproducing head having a magnetoresistive effect

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