IT967900B - Procedimento per la fabbricazione di una testina magnetica e testina magnetica cosi ottenuta - Google Patents

Procedimento per la fabbricazione di una testina magnetica e testina magnetica cosi ottenuta

Info

Publication number
IT967900B
IT967900B IT29719/72A IT2971972A IT967900B IT 967900 B IT967900 B IT 967900B IT 29719/72 A IT29719/72 A IT 29719/72A IT 2971972 A IT2971972 A IT 2971972A IT 967900 B IT967900 B IT 967900B
Authority
IT
Italy
Prior art keywords
magnetic head
procedure
manufacture
magnetic
head
Prior art date
Application number
IT29719/72A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT967900B publication Critical patent/IT967900B/it

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
    • G11B5/313—Disposition of layers
    • G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
    • 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
    • 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
    • G11B5/3166—Testing or indicating in relation thereto, e.g. before the fabrication is completed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49004—Electrical device making including measuring or testing of device or component part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49043—Depositing magnetic layer or coating
    • Y10T29/49044—Plural magnetic deposition layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49043—Depositing magnetic layer or coating
    • Y10T29/49046—Depositing magnetic layer or coating with etching or machining of magnetic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/4906—Providing winding
    • Y10T29/49064—Providing winding by coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Heads (AREA)
IT29719/72A 1971-12-23 1972-09-27 Procedimento per la fabbricazione di una testina magnetica e testina magnetica cosi ottenuta IT967900B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21155471A 1971-12-23 1971-12-23

Publications (1)

Publication Number Publication Date
IT967900B true IT967900B (it) 1974-03-11

Family

ID=22787411

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29719/72A IT967900B (it) 1971-12-23 1972-09-27 Procedimento per la fabbricazione di una testina magnetica e testina magnetica cosi ottenuta

Country Status (7)

Country Link
US (1) US3787964A (it)
JP (1) JPS5228653B2 (it)
CA (1) CA991828A (it)
DE (1) DE2260317C2 (it)
FR (1) FR2164622B1 (it)
GB (1) GB1395017A (it)
IT (1) IT967900B (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908194A (en) * 1974-08-19 1975-09-23 Ibm Integrated magnetoresistive read, inductive write, batch fabricated magnetic head
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
JPS51107310U (it) * 1975-02-26 1976-08-27
JPS51144215A (en) * 1975-06-06 1976-12-11 Hitachi Ltd Magnetic head process
US4176362A (en) * 1975-07-10 1979-11-27 Am International, Inc. High density magnetic image recording head
US4191983A (en) * 1977-06-24 1980-03-04 Applied Magnetics Corporation Thin film magnetic head assembly having a thin film magnetic transducer encapsulated in insulating bonding material
US4195323A (en) * 1977-09-02 1980-03-25 Magnex Corporation Thin film magnetic recording heads
US4489484A (en) * 1977-09-02 1984-12-25 Lee Fred S Method of making thin film magnetic recording heads
US4321641A (en) * 1977-09-02 1982-03-23 Magnex Corporation Thin film magnetic recording heads
US4418472A (en) * 1981-11-23 1983-12-06 Xerox Corporation Method of delineating thin film magnetic head arrays
JPS60185542U (ja) * 1984-05-18 1985-12-09 富士道　春夫 すり鉢固定具
JPH0192954U (it) * 1987-12-14 1989-06-19
NL9100191A (nl) * 1991-02-04 1992-09-01 Philips Nv Werkwijze voor het vervaardigen van een magneetkop en magneetkop vervaardigd volgens de werkwijze.
JPH07105009B2 (ja) * 1991-05-31 1995-11-13 インターナショナル・ビジネス・マシーンズ・コーポレイション 薄膜ヘッドの非線形性を測定するための方法及び装置
JP2001266314A (ja) * 2000-03-21 2001-09-28 Tdk Corp 磁気抵抗効果装置用素材、磁気抵抗効果装置、マイクロデバイスならびにこれらの製造方法
US6700738B1 (en) 2001-03-16 2004-03-02 Kyusik Sin Read/write head coil tap having upper and lower portions
US7249406B2 (en) * 2005-02-28 2007-07-31 Hitachi Global Storage Technologies Netherlands, B.V. Method to detect magnetic pole defects in perpendicular recording heads at wafer level

Family Cites Families (8)

* 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
US3187411A (en) * 1960-09-27 1965-06-08 Philips Corp Method of manufacturing pole-piece units for magnetic heads
US3249987A (en) * 1961-03-30 1966-05-10 Philips Corp Method of manufacturing magnetic heads
US3417465A (en) * 1964-05-19 1968-12-24 Minnesota Mining & Mfg Method of making laminated magnetic head
US3400386A (en) * 1964-05-27 1968-09-03 Magnetic Ind Inc Multichannel magnetic head assembly
US3564522A (en) * 1966-12-16 1971-02-16 Data Disc Inc Transducer with thin film coil and semiconductor switching
US3685144A (en) * 1967-09-18 1972-08-22 Ncr Co Method of making a magnetic transducer
US3706926A (en) * 1971-06-04 1972-12-19 Ibm Method and apparatus for testing batch fabricated magnetic heads during manufacture utilizing magnetic fields generated by other magnetic heads

Also Published As

Publication number Publication date
JPS5228653B2 (it) 1977-07-28
DE2260317C2 (de) 1982-08-26
JPS4874211A (it) 1973-10-06
US3787964A (en) 1974-01-29
FR2164622A1 (it) 1973-08-03
FR2164622B1 (it) 1976-08-20
DE2260317A1 (de) 1973-06-28
CA991828A (en) 1976-06-29
GB1395017A (en) 1975-05-21

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