JPS57117118A - Thin film magnetic head - Google Patents

Thin film magnetic head

Info

Publication number
JPS57117118A
JPS57117118A JP295481A JP295481A JPS57117118A JP S57117118 A JPS57117118 A JP S57117118A JP 295481 A JP295481 A JP 295481A JP 295481 A JP295481 A JP 295481A JP S57117118 A JPS57117118 A JP S57117118A
Authority
JP
Japan
Prior art keywords
layer
thickness
thin film
magnetic head
permalloy
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
JP295481A
Other languages
Japanese (ja)
Inventor
Katsuhiko Nakagawa
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 JP295481A priority Critical patent/JPS57117118A/en
Publication of JPS57117118A publication Critical patent/JPS57117118A/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
    • G11B5/3163—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
    • 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
    • G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
    • G11B5/3106—Structure 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

Abstract

PURPOSE:To avoid corrosion during the use for a long period, by providing a surface modified into high corrosion resistance on an end opposing to a recording medium for a magnetic core layer of a thin magnetic head. CONSTITUTION:On a substrate 1, a magnetic core layer 2 formed with a metallic ferromagnetic substance such as permalloy, a conductor coil layer 3, an insulation layer 4 and a protection layer 5 are constituted with known technologies. After polishing ends 6 opposing to a recording medium, a metallic thin film such as Ti, Cr or Rh is adhered by a sputtering method, heat treatment is made at 200-500 deg.C, the metal is diffused to a permalloy layer to form a surface layer 7 having the diffusion thickness of several tens-several thousands Angstrom . Or, after polishing of the said ends 6, heat treatment is made at 200-300 deg.C for several hours in air to form a corrosion-resistant oxide layer 7 of about 100Angstrom thickness. Thus, the corrosion resistance can be increased without giving adverse effect on other characteristics through the thickness of the layer 7 in the said range to achieve long life.
JP295481A 1981-01-12 1981-01-12 Thin film magnetic head Pending JPS57117118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP295481A JPS57117118A (en) 1981-01-12 1981-01-12 Thin film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP295481A JPS57117118A (en) 1981-01-12 1981-01-12 Thin film magnetic head

Publications (1)

Publication Number Publication Date
JPS57117118A true JPS57117118A (en) 1982-07-21

Family

ID=11543754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP295481A Pending JPS57117118A (en) 1981-01-12 1981-01-12 Thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS57117118A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61170917A (en) * 1985-01-24 1986-08-01 Fujitsu Ltd Thin film magnetic head
FR2611970A1 (en) * 1987-03-06 1988-09-09 Thomson Csf METHOD FOR MAKING A THIN-FILM MAGNETIC HEAD AND APPLICATION TO A RECOVERY / READING HEAD
JP2008194781A (en) * 2007-02-14 2008-08-28 Sintokogio Ltd Centrifugal type abrasive grain projection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5191712A (en) * 1974-12-31 1976-08-11
JPS53123114A (en) * 1977-03-31 1978-10-27 Ibm Magnetic head assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5191712A (en) * 1974-12-31 1976-08-11
JPS53123114A (en) * 1977-03-31 1978-10-27 Ibm Magnetic head assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61170917A (en) * 1985-01-24 1986-08-01 Fujitsu Ltd Thin film magnetic head
FR2611970A1 (en) * 1987-03-06 1988-09-09 Thomson Csf METHOD FOR MAKING A THIN-FILM MAGNETIC HEAD AND APPLICATION TO A RECOVERY / READING HEAD
JP2008194781A (en) * 2007-02-14 2008-08-28 Sintokogio Ltd Centrifugal type abrasive grain projection device

Similar Documents

Publication Publication Date Title
JPS6124806B2 (en)
JPS57117118A (en) Thin film magnetic head
JPH0323972B2 (en)
JPS5755531A (en) Vertical magnetic recording medium
JPS5764319A (en) Magnetic head and its manufacture
JPS5616939A (en) Magnetic recording medium
JPS5778628A (en) Manufacture of magnetic recording medium
JPS59177725A (en) Magnetic storage body
JPS57147130A (en) Magnetic recording medium
JPS63145738A (en) Alloy for film formation
JPS615437A (en) Manufacture of magnetic disk
JPS57179934A (en) Magnetoresistance effect type reproducing head
JPS5573932A (en) Magnetic recording medium of metal thin-film type
JPS5826320A (en) Magnetic recording medium
JPS6417215A (en) Magneto-resistance effect type reproducing head
JPS61142526A (en) Magnetic recording medium
JPH01150223A (en) Thin-film magnetic recording medium
JP3940448B2 (en) Magnetic disk substrate and manufacturing method thereof
JPS5512513A (en) Magnetic head
JPS60261027A (en) Vertical magnetic recording medium
JPS5774815A (en) Magnetic head
JPS62112210A (en) Magnetic recording medium
JPS56148733A (en) Production of thin metallic film type magnetic recording medium
JPS61170917A (en) Thin film magnetic head
JPH01125909A (en) Laminated magnetic thin film and magnetic head using same