JPS57105821A - Magnetic resistance type magnetic head - Google Patents

Magnetic resistance type magnetic head

Info

Publication number
JPS57105821A
JPS57105821A JP18122980A JP18122980A JPS57105821A JP S57105821 A JPS57105821 A JP S57105821A JP 18122980 A JP18122980 A JP 18122980A JP 18122980 A JP18122980 A JP 18122980A JP S57105821 A JPS57105821 A JP S57105821A
Authority
JP
Japan
Prior art keywords
bias
terminal
conductor layer
pattern
insulation layer
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
JP18122980A
Other languages
Japanese (ja)
Inventor
Hitoshi Takagi
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 JP18122980A priority Critical patent/JPS57105821A/en
Publication of JPS57105821A publication Critical patent/JPS57105821A/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
    • G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
    • G11B5/3958—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition
    • G11B5/3961—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement
    • G11B5/3964—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged in a single plane, e.g. "matrix" disposition disposed at an angle to the direction of the track or relative movement for transducing on a single track
    • 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
    • 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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • G11B5/397—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components
    • G11B5/3977—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read with a plurality of independent magnetoresistive active read-out elements for respectively transducing from selected components from different information tracks

Landscapes

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

Abstract

PURPOSE:To achieve a reproducing output with less distortion, by applying a bias field with a pair of bias conductors between each end terminal and a central terminal of a three-terminal type magnetic resistance element of almost E shape having terminals at the end and the central terminal. CONSTITUTION:A lower bias conductor layer 25 is formed on a substrate and a pattern (a) is formed by etching. After the 1st insulation layer is formed on the conductor layer 25, a ferromagnetic thin film such as permalloy is formed to form a magnetic resistance effect type head MR element 24 and a pattern (b) of almost E-shape through etching. The 2nd insulation layer is formed on the MR element pattern. To achieve electric conduction between upper and lower bias conductor layers 25, 30, the insulation layer for connections 25', 30' is removed and the upper bias conductor layer 30 is formed. An external lead terminal 27 of the upper bias conductor layer 30 is connected to a bias voltage source 29 and ground via a resistor 28. Although the bias current flows to the same direction, a bias magnetic field of opposite direction is applied, the output of each MR element is differentially detected and the reproducing waveform with less distortion can be achieved.
JP18122980A 1980-12-23 1980-12-23 Magnetic resistance type magnetic head Pending JPS57105821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18122980A JPS57105821A (en) 1980-12-23 1980-12-23 Magnetic resistance type magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18122980A JPS57105821A (en) 1980-12-23 1980-12-23 Magnetic resistance type magnetic head

Publications (1)

Publication Number Publication Date
JPS57105821A true JPS57105821A (en) 1982-07-01

Family

ID=16097060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18122980A Pending JPS57105821A (en) 1980-12-23 1980-12-23 Magnetic resistance type magnetic head

Country Status (1)

Country Link
JP (1) JPS57105821A (en)

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