JPS57127912A - Thin film magnetic head - Google Patents

Thin film magnetic head

Info

Publication number
JPS57127912A
JPS57127912A JP1040181A JP1040181A JPS57127912A JP S57127912 A JPS57127912 A JP S57127912A JP 1040181 A JP1040181 A JP 1040181A JP 1040181 A JP1040181 A JP 1040181A JP S57127912 A JPS57127912 A JP S57127912A
Authority
JP
Japan
Prior art keywords
magnetic substance
layer
coil
substance layer
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
JP1040181A
Other languages
Japanese (ja)
Inventor
Kazuhiko Yamada
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1040181A priority Critical patent/JPS57127912A/en
Publication of JPS57127912A publication Critical patent/JPS57127912A/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
    • G11B5/312—Details for reducing flux leakage between the electrical coil layers and the magnetic cores or poles or between the magnetic cores or poles
    • 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
    • G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
    • G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
    • 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
    • G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers

Abstract

PURPOSE:To increase inner gap and to improve R/W efficiency, by inserting a magnetically soft magnetic substance layer between a coil of a thin magnetic head and at least one magnetic substance layer via an insulation layer. CONSTITUTION:A lower magnetic substance layer 41 is formed on a base 47 via an insulation layer 40 and a coil 43 consisting of a conductor layer is formed on it via an insulation layer 44. An insulation layer 48 is laminated on the coil 43. A plating background metal 45 is formed at a part overlapped with an upper magnetic substance layer 42 and the coil 43, a part other than the plating part is masked with photoresist and a magnetically soft magnetic substance layer 46 is plated. Then, the masking is removed and the plating background metal 45 is removed with etching and after forming an insulation layer 49 on it, windows are made to the insulation layers 44, 48, 49 so that the upper magnetic substance layer 42 can directly be connected with the lower magnetic substance layer 41 at a rear gap A, the upper magnetic substance 42 is formed and the transducer of the thin film magnetic head can be constituted.
JP1040181A 1981-01-27 1981-01-27 Thin film magnetic head Pending JPS57127912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1040181A JPS57127912A (en) 1981-01-27 1981-01-27 Thin film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1040181A JPS57127912A (en) 1981-01-27 1981-01-27 Thin film magnetic head

Publications (1)

Publication Number Publication Date
JPS57127912A true JPS57127912A (en) 1982-08-09

Family

ID=11749113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1040181A Pending JPS57127912A (en) 1981-01-27 1981-01-27 Thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS57127912A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782416A (en) * 1984-06-04 1988-11-01 Siemens Aktiengesellschaft Magnetic head having two legs of predetermined saturation magnetization for a recording medium to be magnetized vertically

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156914A (en) * 1980-05-02 1981-12-03 Hitachi Ltd Thin-film magnetic head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156914A (en) * 1980-05-02 1981-12-03 Hitachi Ltd Thin-film magnetic head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782416A (en) * 1984-06-04 1988-11-01 Siemens Aktiengesellschaft Magnetic head having two legs of predetermined saturation magnetization for a recording medium to be magnetized vertically

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