JPS56137514A - Thin film magnetic head - Google Patents

Thin film magnetic head

Info

Publication number
JPS56137514A
JPS56137514A JP3930180A JP3930180A JPS56137514A JP S56137514 A JPS56137514 A JP S56137514A JP 3930180 A JP3930180 A JP 3930180A JP 3930180 A JP3930180 A JP 3930180A JP S56137514 A JPS56137514 A JP S56137514A
Authority
JP
Japan
Prior art keywords
thin film
width
magnetic thin
isolation layer
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
JP3930180A
Other languages
Japanese (ja)
Inventor
Nobumasa Kaminaka
Kenji Kanai
Kidai Nochi
Noboru Nomura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3930180A priority Critical patent/JPS56137514A/en
Publication of JPS56137514A publication Critical patent/JPS56137514A/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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
    • 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
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers

Landscapes

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

Abstract

PURPOSE:To improve the electromagnetic conversion characteristics, by locating the magnetic thin film which takes the background plane with narrow width changed in step shape as a flat plane, on the upper part providing conductive layer and nonmagnetic isolation layer on the substrate. CONSTITUTION:The 1st nonmagnetic isolation layer 9 is formed on the substrate of ferromagnetism such as ferrite, which is flat and the groove 8 of which is filled in glass, and after the 1st conduction layer 1A, the 2nd nonmagnetic isolation layer 10, the 2nd conductor layer 1B, and the 3rd nonmagetic isolation layer 11 are laminated on it, the magnetic thin film 3 such as Ni-Fe alloy is formed. The width of the magnetic thin film 3 is the same as the track width W near the plane 4 close to the recording medium 5, and the rear side has wider width WA than W. At the area where the width is changed from W to WA at the point P and the width of the magnetic thin film 3 is narrow as W, flat constitution without unevenness can be given to the background.
JP3930180A 1980-03-26 1980-03-26 Thin film magnetic head Pending JPS56137514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3930180A JPS56137514A (en) 1980-03-26 1980-03-26 Thin film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3930180A JPS56137514A (en) 1980-03-26 1980-03-26 Thin film magnetic head

Publications (1)

Publication Number Publication Date
JPS56137514A true JPS56137514A (en) 1981-10-27

Family

ID=12549295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3930180A Pending JPS56137514A (en) 1980-03-26 1980-03-26 Thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS56137514A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804816A (en) * 1981-12-21 1989-02-14 Kabushiki Kaisha Kenwood Method of making a thin-film magnetic head having a multi-layered coil structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804816A (en) * 1981-12-21 1989-02-14 Kabushiki Kaisha Kenwood Method of making a thin-film magnetic head having a multi-layered coil structure

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