JPS5449109A - Head of magnetic transducer and its preparation - Google Patents

Head of magnetic transducer and its preparation

Info

Publication number
JPS5449109A
JPS5449109A JP10703078A JP10703078A JPS5449109A JP S5449109 A JPS5449109 A JP S5449109A JP 10703078 A JP10703078 A JP 10703078A JP 10703078 A JP10703078 A JP 10703078A JP S5449109 A JPS5449109 A JP S5449109A
Authority
JP
Japan
Prior art keywords
preparation
head
magnetic transducer
transducer
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
JP10703078A
Other languages
Japanese (ja)
Inventor
Esu Rii Furetsudo
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.)
Magnex Corp
Original Assignee
Magnex Corp
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
Priority claimed from US05/830,104 external-priority patent/US4489484A/en
Application filed by Magnex Corp filed Critical Magnex Corp
Publication of JPS5449109A publication Critical patent/JPS5449109A/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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • 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
    • 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
    • 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
    • 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
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • 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
    • G11B5/40—Protective measures on heads, e.g. against excessive temperature 

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
JP10703078A 1977-09-02 1978-09-02 Head of magnetic transducer and its preparation Pending JPS5449109A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/830,104 US4489484A (en) 1977-09-02 1977-09-02 Method of making thin film magnetic recording heads
US90925878A 1978-05-24 1978-05-24

Publications (1)

Publication Number Publication Date
JPS5449109A true JPS5449109A (en) 1979-04-18

Family

ID=27125321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10703078A Pending JPS5449109A (en) 1977-09-02 1978-09-02 Head of magnetic transducer and its preparation

Country Status (6)

Country Link
JP (1) JPS5449109A (en)
CA (1) CA1134945A (en)
DE (1) DE2838263A1 (en)
FR (1) FR2402270B1 (en)
GB (1) GB2003647B (en)
NL (1) NL7809047A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251841A (en) * 1979-06-01 1981-02-17 International Business Machines Corporation Magnetic head slider assembly
NL7908611A (en) * 1979-11-28 1981-07-01 Philips Nv INTEGRATED MAGNETIC HEAD CONSTRUCTION.
NL8102148A (en) * 1981-05-01 1982-12-01 Philips Nv MAGNETIC TRANSFER ELEMENT AND MAGNETIC PERMEABLE PART FOR A MAGNETIC TRANSFER ELEMENT.
US4418472A (en) * 1981-11-23 1983-12-06 Xerox Corporation Method of delineating thin film magnetic head arrays
US4639806A (en) * 1983-09-09 1987-01-27 Sharp Kabushiki Kaisha Thin film magnetic head having a magnetized ferromagnetic film on the MR element
US4648087A (en) * 1984-06-28 1987-03-03 International Business Machines Corporation Capacitive sensing employing thin film inductors
DE3613619A1 (en) * 1985-04-26 1986-10-30 Sharp K.K., Osaka THICK FILM MAGNETIC HEAD
JPH0778309A (en) * 1993-07-14 1995-03-20 Sony Corp Thin film magnetic head, magneto-resistance effect magnetic head and composite magnetic head
JPH0817020A (en) * 1994-06-30 1996-01-19 Sony Corp Magneto-resistive thin-film magnetic head
US7609478B2 (en) * 2006-03-28 2009-10-27 Seagate Technology Llc Magnetic writer pole with a graded magnetic moment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50143416A (en) * 1974-05-07 1975-11-18
JPS5144917A (en) * 1974-08-19 1976-04-16 Ibm
JPS5236016A (en) * 1975-09-17 1977-03-19 Hitachi Ltd Manufacturing method for floating magnetic head
JPS5884636A (en) * 1981-11-16 1983-05-20 Mazda Motor Corp Composition for coated sand
JPS5927195A (en) * 1982-08-06 1984-02-13 Mitsubishi Heavy Ind Ltd Repair of damaged tube

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1307886A (en) * 1970-05-12 1973-02-21 Ibm Magnetic transducing head
FR2165206A5 (en) * 1971-12-22 1973-08-03 Cii
FR2191186B1 (en) * 1972-07-03 1976-01-16 Inf Ci Interna Fr
FR2205701B1 (en) * 1972-11-07 1977-08-05 Cii
FR2264350B1 (en) * 1974-03-11 1978-09-29 Cii
NL7406962A (en) * 1974-05-24 1975-11-26 Philips Nv MAGNETIC HEAD USING A MAGNETIC FIELD SENSITIVE ELEMENT AND METHOD FOR MANUFACTURING THE SAME.
JPS51131310A (en) * 1975-05-08 1976-11-15 Nippon Telegr & Teleph Corp <Ntt> Method of manufacturing magnetic field
JPS51151115A (en) * 1975-06-20 1976-12-25 Hitachi Ltd Manufacturing method of thin film integrated magnetic head
US4130847A (en) * 1977-03-31 1978-12-19 International Business Machines Corporation Corrosion resistant thin film head assembly and method for making

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50143416A (en) * 1974-05-07 1975-11-18
JPS5144917A (en) * 1974-08-19 1976-04-16 Ibm
JPS5236016A (en) * 1975-09-17 1977-03-19 Hitachi Ltd Manufacturing method for floating magnetic head
JPS5884636A (en) * 1981-11-16 1983-05-20 Mazda Motor Corp Composition for coated sand
JPS5927195A (en) * 1982-08-06 1984-02-13 Mitsubishi Heavy Ind Ltd Repair of damaged tube

Also Published As

Publication number Publication date
GB2003647A (en) 1979-03-14
GB2003647B (en) 1982-05-06
FR2402270A1 (en) 1979-03-30
DE2838263A1 (en) 1979-03-08
CA1134945A (en) 1982-11-02
FR2402270B1 (en) 1987-11-20
NL7809047A (en) 1979-03-06

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