JPS57183618A - Thin film magnetic head - Google Patents

Thin film magnetic head

Info

Publication number
JPS57183618A
JPS57183618A JP6985381A JP6985381A JPS57183618A JP S57183618 A JPS57183618 A JP S57183618A JP 6985381 A JP6985381 A JP 6985381A JP 6985381 A JP6985381 A JP 6985381A JP S57183618 A JPS57183618 A JP S57183618A
Authority
JP
Japan
Prior art keywords
layer
thin film
magnetic head
film magnetic
lower magnetic
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
JP6985381A
Other languages
Japanese (ja)
Inventor
Katsuhiko Nakagawa
Akira Kakehi
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 JP6985381A priority Critical patent/JPS57183618A/en
Publication of JPS57183618A publication Critical patent/JPS57183618A/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

Landscapes

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

Abstract

PURPOSE:To reduce the waveform distortion of a reproduced output for a thin film magnetic head consisting of a conductor layer formed between the upper and lower magnetic layers, by forming the patterns of the upper and lower magnetic layers into asymmetrical formes to each other. CONSTITUTION:A lower magnetic layer 10 of ''Permalloy '', etc. is formed on a substrate 4 of glass, etc. in several mum thickness. A coil layer 12 of aluminum, etc. is provided thickness. A coil layer 12 of aluminum, etc. is provided with intervention of an insulated layer 11 of SiO2, etc. Then an upper magnetic layer 13 of ''Permalloy '', etc. is stacked on the layer 12. Thus a thin film magnetic head is obtained. The size of the layer 10 is set asymmetrical to the size (1) of the layer 13. In such way, the waveform distortion is reduced for the reproduced output.
JP6985381A 1981-05-08 1981-05-08 Thin film magnetic head Pending JPS57183618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6985381A JPS57183618A (en) 1981-05-08 1981-05-08 Thin film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6985381A JPS57183618A (en) 1981-05-08 1981-05-08 Thin film magnetic head

Publications (1)

Publication Number Publication Date
JPS57183618A true JPS57183618A (en) 1982-11-12

Family

ID=13414780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6985381A Pending JPS57183618A (en) 1981-05-08 1981-05-08 Thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS57183618A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740855A (en) * 1985-10-18 1988-04-26 Siemens Aktiengesellschaft Magnetic thin-film head having a main and an auxiliary pole for vertical magnetization
WO1990002399A1 (en) * 1988-08-19 1990-03-08 Siemens Aktiengesellschaft Thin-film magnetic head
US9496071B2 (en) 2011-05-19 2016-11-15 Yazaki Corporation Shield wire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740855A (en) * 1985-10-18 1988-04-26 Siemens Aktiengesellschaft Magnetic thin-film head having a main and an auxiliary pole for vertical magnetization
WO1990002399A1 (en) * 1988-08-19 1990-03-08 Siemens Aktiengesellschaft Thin-film magnetic head
US9496071B2 (en) 2011-05-19 2016-11-15 Yazaki Corporation Shield wire

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