GB1431348A - Magnetic transducer structures - Google Patents

Magnetic transducer structures

Info

Publication number
GB1431348A
GB1431348A GB3160773A GB3160773A GB1431348A GB 1431348 A GB1431348 A GB 1431348A GB 3160773 A GB3160773 A GB 3160773A GB 3160773 A GB3160773 A GB 3160773A GB 1431348 A GB1431348 A GB 1431348A
Authority
GB
United Kingdom
Prior art keywords
magnetic
layers
conducting
insulating
magnetic 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.)
Expired
Application number
GB3160773A
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.)
LINFORMATIQUE COMP INT
Original Assignee
LINFORMATIQUE COMP INT
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 LINFORMATIQUE COMP INT filed Critical LINFORMATIQUE COMP INT
Publication of GB1431348A publication Critical patent/GB1431348A/en
Expired 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
    • 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
    • G11B5/17—Construction or disposition of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

1431348 Magnetic transducers COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE 3 July 1973 [3 July 1972] 31607/73 Heading G5R A magnetic transducer comprises interleaved conducting and insulating helices built up from stacked layers 2, 5, 7, 9 and 3, 4, 6 respectively on a dielectric substrate 10 and forming an insulated winding passing between magnetic layers 11, 12. The transducer is built up by vacuum deposition of successive magnetic (Fe/ Ni alloy), conducting (copper) and insulating (silica) layers through apertures (1); (2, 5, 7, 8, 9); (3, 4, 6) of a mask (50), Fig. 3 (not shown), in a sequence starting with the first magnetic layer 11 and continuing with conducting and insulating layers, the former partially overlapping to form a rectangular winding, the latter defining a central window so that the final, magnetic layer 12 may connect to the first magnetic layer 11. The assembly is abraded at 56 to form an air-gap between the layers 11, 12. Reference has been directed by the Comptroller to Specification 1,331,437.
GB3160773A 1972-07-03 1973-07-03 Magnetic transducer structures Expired GB1431348A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7223939A FR2209154B1 (en) 1972-07-03 1972-07-03

Publications (1)

Publication Number Publication Date
GB1431348A true GB1431348A (en) 1976-04-07

Family

ID=9101238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3160773A Expired GB1431348A (en) 1972-07-03 1973-07-03 Magnetic transducer structures

Country Status (9)

Country Link
US (1) US3846842A (en)
BE (1) BE801184A (en)
DE (1) DE2333812C3 (en)
ES (1) ES416545A1 (en)
FR (1) FR2209154B1 (en)
GB (1) GB1431348A (en)
HU (1) HU169204B (en)
IT (1) IT991646B (en)
NL (1) NL7309181A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297475A1 (en) * 1975-01-10 1976-08-06 Cii IMPROVEMENTS EXPORTED TO STRUCTURES OF MAGNETIC HEADS OF THE TYPE CALLED "INTEGRATED"
US4078300A (en) * 1975-01-10 1978-03-14 Compagnie Internationale Pour L'informatique Method of making an integrated magnetic head having pole-pieces of a reduced frontal width
US4092688A (en) * 1975-07-31 1978-05-30 Matsushita Electric Industrial Co. Ltd. Multi-track thin film magnetic head
DE2721201A1 (en) * 1977-05-11 1978-11-16 Siemens Ag METHOD FOR MANUFACTURING INTEGRATED MAGNETIC HEAD STRUCTURES
US4219854A (en) * 1978-12-21 1980-08-26 International Business Machines Corporation Thin film magnetic head assembly
US4353102A (en) * 1979-07-04 1982-10-05 Matsushita Electric Industrial Co., Ltd. Thin-film magnetic head
FR2468183A1 (en) * 1979-10-25 1981-04-30 Cii Honeywell Bull INTEGRATED MAGNETIC TRANSDUCER

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344237A (en) * 1967-09-26 Desposited film transducing apparatus and method op producing the apparatus
US3089106A (en) * 1960-08-15 1963-05-07 Wheelock Signals Inc Printed circuit coil
GB1018550A (en) * 1963-09-05 1966-01-26 Ampex Improved parametric reproducing head
US3514851A (en) * 1967-04-03 1970-06-02 Control Data Corp Method of manufacturing a magnetic head structure
US3549825A (en) * 1967-09-18 1970-12-22 Ncr Co Magnetic transducer with planar spiral coil extending into the gap
US3564558A (en) * 1968-08-26 1971-02-16 Sperry Rand Corp High-density magnetic recording scheme
US3611417A (en) * 1969-07-30 1971-10-05 Sperry Rand Corp High-density magnetic recording method
DE1952402A1 (en) * 1969-10-17 1971-04-22 Philips Patentverwaltung Magnetic head
BE758053A (en) * 1969-10-28 1971-04-01 Commissariat Energie Atomique INTEGRATED MAGNETIC HEAD AND METHOD FOR MANUFACTURING THE SAID HEAD
US3700827A (en) * 1970-01-31 1972-10-24 Nippon Electric Co Magnetic head including thin magnetic film separated by a gap spacer
US3639699A (en) * 1970-02-27 1972-02-01 Gen Electric Magnetic transducer having a composite magnetic core structure

Also Published As

Publication number Publication date
DE2333812B2 (en) 1980-07-10
IT991646B (en) 1975-08-30
ES416545A1 (en) 1976-02-16
BE801184A (en) 1973-10-15
HU169204B (en) 1976-10-28
DE2333812A1 (en) 1974-01-24
FR2209154B1 (en) 1975-04-11
FR2209154A1 (en) 1974-06-28
NL7309181A (en) 1974-01-07
DE2333812C3 (en) 1981-11-19
US3846842A (en) 1974-11-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee