JPS61237216A - Production of thin film magnetic head - Google Patents

Production of thin film magnetic head

Info

Publication number
JPS61237216A
JPS61237216A JP7907685A JP7907685A JPS61237216A JP S61237216 A JPS61237216 A JP S61237216A JP 7907685 A JP7907685 A JP 7907685A JP 7907685 A JP7907685 A JP 7907685A JP S61237216 A JPS61237216 A JP S61237216A
Authority
JP
Japan
Prior art keywords
magnetic
film
layer
pole
recording medium
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
JP7907685A
Inventor
Akira Kakehi
Yoshio Koshikawa
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 JP7907685A priority Critical patent/JPS61237216A/en
Publication of JPS61237216A publication Critical patent/JPS61237216A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/31Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3103Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • G11B5/3106Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/31Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109Details
    • G11B5/3116Shaping 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/31Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3163Fabrication 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 form easily a projected part at the leading end part of a magnetic layer by selectively etching the surface of the magnetic layer on which a projected part is to be formed and which is opposed to a recording medium. CONSTITUTION:A lower magnetic-pole layer 22, a gap layer 25, the first insulating layer 26, a thin film coil 27, the second insulating layer 28, an upper magnetic-pole layer 23 and a protective layer 29 are successively formed on a substrate 21, then a photoresist film 24 is coated on the surfaces of both magnetic layers 22 and 23 opposed to a recording medium and the film 24 is formed in a specified pattern by using a photographic method. Subsequently, both magnetic-pole layers 22 and 23 are ion-etched, etc., by using the photoresist film 24 as a mask and then the photoresist film 24 is removed by using a photoresist film removing agent. Then an alumina film or a silicon oxide film is sputtered as a flattening coated film 31. The surface of the coated film 31 is ground. Consequently, angular parts K and L are formed and used for mitigating the magnetic flux generated between the magnetic-pole surfaces and the magnetic recording medium with the angular parts G and H on the surfaces of both magnetic-pole layers 22 and 23 opposed to the magnetic recording medium.
JP7907685A 1985-04-12 1985-04-12 Production of thin film magnetic head Pending JPS61237216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7907685A JPS61237216A (en) 1985-04-12 1985-04-12 Production of thin film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7907685A JPS61237216A (en) 1985-04-12 1985-04-12 Production of thin film magnetic head

Publications (1)

Publication Number Publication Date
JPS61237216A true JPS61237216A (en) 1986-10-22

Family

ID=13679798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7907685A Pending JPS61237216A (en) 1985-04-12 1985-04-12 Production of thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS61237216A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04146510A (en) * 1990-10-05 1992-05-20 Tdk Corp Magnetic head
US5331497A (en) * 1990-07-30 1994-07-19 Matsushita Electric Industrial Co., Ltd. Thin film magnetic head
JPH0916904A (en) * 1995-06-30 1997-01-17 Nec Corp Thin-film magnetic head and its manufacture
WO1997040493A1 (en) * 1996-04-19 1997-10-30 Micrion Corporation Thin-film magnetic recording heads and systems and methods for manufacturing the same
US5726840A (en) * 1991-12-02 1998-03-10 Matsushita Electric Industrial Co., Ltd. Magnetic head apparatus having multiple recessed magnetic metal films

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331497A (en) * 1990-07-30 1994-07-19 Matsushita Electric Industrial Co., Ltd. Thin film magnetic head
JPH04146510A (en) * 1990-10-05 1992-05-20 Tdk Corp Magnetic head
US5726840A (en) * 1991-12-02 1998-03-10 Matsushita Electric Industrial Co., Ltd. Magnetic head apparatus having multiple recessed magnetic metal films
US5729412A (en) * 1991-12-02 1998-03-17 Matsushita Electric Industrial Co., Ltd. Magnetic head including a recessed magnetic metal film
JPH0916904A (en) * 1995-06-30 1997-01-17 Nec Corp Thin-film magnetic head and its manufacture
WO1997040493A1 (en) * 1996-04-19 1997-10-30 Micrion Corporation Thin-film magnetic recording heads and systems and methods for manufacturing the same
US5916424A (en) * 1996-04-19 1999-06-29 Micrion Corporation Thin film magnetic recording heads and systems and methods for manufacturing the same

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