JPS5637823A - Thin-film magnetic resistance head - Google Patents

Thin-film magnetic resistance head

Info

Publication number
JPS5637823A
JPS5637823A JP11253479A JP11253479A JPS5637823A JP S5637823 A JPS5637823 A JP S5637823A JP 11253479 A JP11253479 A JP 11253479A JP 11253479 A JP11253479 A JP 11253479A JP S5637823 A JPS5637823 A JP S5637823A
Authority
JP
Japan
Prior art keywords
thin
film
magnetic resistance
substrate
width
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
JP11253479A
Other languages
Japanese (ja)
Inventor
Hiroshi Sugawara
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11253479A priority Critical patent/JPS5637823A/en
Publication of JPS5637823A publication Critical patent/JPS5637823A/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
    • G11B5/398—Specially shaped layers

Landscapes

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

Abstract

PURPOSE:To obtain a large reproduction output that has a little distortion of a recording signal of short wavelength by widening the width of the ferromagnetic substance thin film of a thin-film magnetic resistance head and by providing the film with slits. CONSTITUTION:For reproducing a signal of 2.5mum recording wavelength, for example, supply conductor 3 for detection current is evaporation-deposited on substrate 2. On it, thin permalloy film (300Angstrom ) for a magnetic resistance (MR) element is evaporation-deposited to obtain MR element 1. Although the width of element is 20mum, three nonpenetrating slits 5 of 1mum in width are provided from the edge opposing to the side facing to the end of substrate 1 nearly at right angles to the electric current path. The tip of each slit 5 is extended to a position 5mum away from the end of substrate 1. Thus, the diamagnetic field of MR element 1 is reduced and the distortion of reproduced waveform is lessened, so that a large reproduction output can be read which has a little distortion of a recording signal of short wavelength.
JP11253479A 1979-09-03 1979-09-03 Thin-film magnetic resistance head Pending JPS5637823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11253479A JPS5637823A (en) 1979-09-03 1979-09-03 Thin-film magnetic resistance head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11253479A JPS5637823A (en) 1979-09-03 1979-09-03 Thin-film magnetic resistance head

Publications (1)

Publication Number Publication Date
JPS5637823A true JPS5637823A (en) 1981-04-11

Family

ID=14589042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11253479A Pending JPS5637823A (en) 1979-09-03 1979-09-03 Thin-film magnetic resistance head

Country Status (1)

Country Link
JP (1) JPS5637823A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177421A (en) * 1984-02-23 1985-09-11 Nec Kansai Ltd Magneto-resistance effect head
EP0221540A2 (en) * 1985-11-05 1987-05-13 Sony Corporation Magnetic transducer head utilizing magnetoresistance effect
JPS6332714A (en) * 1986-07-28 1988-02-12 Victor Co Of Japan Ltd Magneto-resistance head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177421A (en) * 1984-02-23 1985-09-11 Nec Kansai Ltd Magneto-resistance effect head
JPH0441413B2 (en) * 1984-02-23 1992-07-08 Kansai Nippon Electric
EP0221540A2 (en) * 1985-11-05 1987-05-13 Sony Corporation Magnetic transducer head utilizing magnetoresistance effect
JPS6332714A (en) * 1986-07-28 1988-02-12 Victor Co Of Japan Ltd Magneto-resistance head

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