JPS5750318A - Multielement magnetic head - Google Patents

Multielement magnetic head

Info

Publication number
JPS5750318A
JPS5750318A JP12629480A JP12629480A JPS5750318A JP S5750318 A JPS5750318 A JP S5750318A JP 12629480 A JP12629480 A JP 12629480A JP 12629480 A JP12629480 A JP 12629480A JP S5750318 A JPS5750318 A JP S5750318A
Authority
JP
Japan
Prior art keywords
bias
terminal
track
boundaries
tracks
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
JP12629480A
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 JP12629480A priority Critical patent/JPS5750318A/en
Publication of JPS5750318A publication Critical patent/JPS5750318A/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
    • 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
    • G11B5/3906—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

Landscapes

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

Abstract

PURPOSE:To reduce waveform distortion to improve a signal quality, by arranging terminals of the bias conductor of a three-terminal multielement magnetic head in boundaries and centers of tracks and by supplying the current of the bias conductor from the terminal placed on boundaries between tracks. CONSTITUTION:An MR element 9 is formed into a prescribed form, and an insulating layer is formed on it, and the insulating layer of a center terminal 11 of each track is removed, and a bias conductor 10 is formed on the MR element 9. Resistance RB/2 and RB are connected to the terminal on boundaries between respective tracks and terminals at both ends, and they are connected to a bias power source VB, thereby supplying a bias current. If the center terminal 11 of each track is grounded, the MR element 9 corresponding to each track is separated into two in the center, and separated elements are biased by bias magnetic fields which have an equal magnitude and directions opposite to each other, and the output of the MR element 9 separated into two is amplified differentially to obtain the output of each track. Thus, waveform distortion is reduced to improve a signal quality.
JP12629480A 1980-09-11 1980-09-11 Multielement magnetic head Pending JPS5750318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12629480A JPS5750318A (en) 1980-09-11 1980-09-11 Multielement magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12629480A JPS5750318A (en) 1980-09-11 1980-09-11 Multielement magnetic head

Publications (1)

Publication Number Publication Date
JPS5750318A true JPS5750318A (en) 1982-03-24

Family

ID=14931638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12629480A Pending JPS5750318A (en) 1980-09-11 1980-09-11 Multielement magnetic head

Country Status (1)

Country Link
JP (1) JPS5750318A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104720A (en) * 1982-12-07 1984-06-16 Matsushita Electric Ind Co Ltd Thin film magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104720A (en) * 1982-12-07 1984-06-16 Matsushita Electric Ind Co Ltd Thin film magnetic head
JPH0440775B2 (en) * 1982-12-07 1992-07-06 Matsushita Electric Ind Co Ltd

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