DE69014787D1 - Herstellungsverfahren von polaren Stücken und der Spalte von Dünnschicht-Magnetköpfen zur Informationsverarbeitungs-, Audio- oder Videoverwendung. - Google Patents

Herstellungsverfahren von polaren Stücken und der Spalte von Dünnschicht-Magnetköpfen zur Informationsverarbeitungs-, Audio- oder Videoverwendung.

Info

Publication number
DE69014787D1
DE69014787D1 DE69014787T DE69014787T DE69014787D1 DE 69014787 D1 DE69014787 D1 DE 69014787D1 DE 69014787 T DE69014787 T DE 69014787T DE 69014787 T DE69014787 T DE 69014787T DE 69014787 D1 DE69014787 D1 DE 69014787D1
Authority
DE
Germany
Prior art keywords
audio
gap
thin
information processing
manufacturing process
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 - Fee Related
Application number
DE69014787T
Other languages
English (en)
Other versions
DE69014787T2 (de
Inventor
Patrice Deroux-Dauphin
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.)
Technicolor SA
Original Assignee
EUROP COMPOSANTS ELECTRON
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 EUROP COMPOSANTS ELECTRON filed Critical EUROP COMPOSANTS ELECTRON
Publication of DE69014787D1 publication Critical patent/DE69014787D1/de
Application granted granted Critical
Publication of DE69014787T2 publication Critical patent/DE69014787T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
    • G11B5/00817—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on longitudinal tracks only, e.g. for serpentine format recording
    • G11B5/00821—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on longitudinal tracks only, e.g. for serpentine format recording using stationary heads
    • 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
    • G11B5/23—Gap features
    • G11B5/232—Manufacture of gap
    • 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
    • G11B5/3176—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps
    • G11B5/3179—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes
    • G11B5/3183—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes intersecting the gap plane, e.g. "horizontal head 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/23—Gap features
    • G11B5/235—Selection of material for gap filler
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69014787T 1989-09-12 1990-09-07 Herstellungsverfahren von polaren Stücken und der Spalte von Dünnschicht-Magnetköpfen zur Informationsverarbeitungs-, Audio- oder Videoverwendung. Expired - Fee Related DE69014787T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8911892A FR2651912B1 (fr) 1989-09-12 1989-09-12 Procede de realisation des pieces polaires et de l'entrefer de tetes magnetiques en couches minces pour application informatique audio ou video.

Publications (2)

Publication Number Publication Date
DE69014787D1 true DE69014787D1 (de) 1995-01-19
DE69014787T2 DE69014787T2 (de) 1995-04-13

Family

ID=9385352

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69014787T Expired - Fee Related DE69014787T2 (de) 1989-09-12 1990-09-07 Herstellungsverfahren von polaren Stücken und der Spalte von Dünnschicht-Magnetköpfen zur Informationsverarbeitungs-, Audio- oder Videoverwendung.

Country Status (5)

Country Link
US (1) US5062196A (de)
EP (1) EP0418127B1 (de)
JP (1) JP2982261B2 (de)
DE (1) DE69014787T2 (de)
FR (1) FR2651912B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03242983A (ja) * 1990-02-06 1991-10-29 Internatl Business Mach Corp <Ibm> 磁気構造体の製造方法
US5393376A (en) * 1993-12-30 1995-02-28 International Business Machines Corporation Method of making pole tip structure for thin film magnetic heads
FR2716995B1 (fr) * 1994-03-01 1996-04-05 Commissariat Energie Atomique Procédé de réalisation d'une tête magnétique verticale et tête obtenue par ce procédé.
CN1067788C (zh) * 1994-03-07 2001-06-27 国际商业机器公司 制造磁传感器的方法和制造磁盘存储系统的方法
FR2716996B1 (fr) * 1994-03-07 1996-04-05 Commissariat Energie Atomique Tête magnétique verticale et son procédé de réalisation.
JP2931523B2 (ja) * 1994-06-24 1999-08-09 ティーディーケイ株式会社 薄膜磁気ヘッドの製造方法
US5572392A (en) * 1994-11-17 1996-11-05 International Business Machines Corporation Arbitrary pattern write head assembly for writing timing-based servo patterns on magnetic storage media
FR2727556B1 (fr) * 1994-11-29 1997-01-03 Thomson Csf Procede de realisation d'une tete magnetique d'enregistrement/lecture et tete d'enregistrement/lecture
US6073338A (en) * 1997-08-19 2000-06-13 Read-Rite Corporation Thin film read head with coplanar pole tips
KR100264802B1 (ko) * 1998-02-24 2000-09-01 윤종용 플래너구조 박막자기헤드의 갭 형성방법
US6501619B1 (en) 2000-04-27 2002-12-31 Shipley Company, L.L.C. Inductive magnetic recording head having inclined magnetic read/write pole and method of making same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5870416A (ja) * 1981-10-20 1983-04-26 Matsushita Electric Ind Co Ltd 磁気ヘツドの製造方法
JPH0760490B2 (ja) * 1983-08-29 1995-06-28 ソニー株式会社 多素子薄膜磁気ヘッドの製造方法
FR2604021B1 (fr) * 1986-09-17 1988-10-28 Commissariat Energie Atomique Procede de realisation de tetes magnetiques en couches minces et a structure planaire et tete obtenue par ce procede

Also Published As

Publication number Publication date
JPH03105712A (ja) 1991-05-02
DE69014787T2 (de) 1995-04-13
FR2651912B1 (fr) 1991-10-31
EP0418127B1 (de) 1994-12-07
US5062196A (en) 1991-11-05
EP0418127A1 (de) 1991-03-20
JP2982261B2 (ja) 1999-11-22
FR2651912A1 (fr) 1991-03-15

Similar Documents

Publication Publication Date Title
DE3854963D1 (de) Verfahren zur Behandlung von magnetischen Aufzeichnungsträgern
DE69015652D1 (de) Weichmagnetischer dünner Film, Verfahren zu seiner Herstellung und Magnetkopf.
DE68908943T2 (de) Verfahren zur Herstellung von kornorientiertem Elektrostahlblech mit ausgezeichneten magnetischen Eigenschaften und Filmeigenschaften.
EP0569244A3 (de) Verfahren zur Aufbereitung von Information einer Aufzeichnungsplatte und Gerät zu seiner Aufbereitung.
DE69300554D1 (de) Formverfahren und Vorrichtung zur Herstellung von aus zwei Sektoren bestehenden Verbundwerkstoffteilen.
DE451812T1 (de) Verfahren und einrichtung zur herstellung und nutzung von magnetischen warensicherungsetiketten.
DE3585268D1 (de) Aufzeichnungsmaterial und verfahren zur herstellung.
DE69022182T2 (de) Verfahren zur Herstellung mehrschichtiger magnetischer Aufzeichnungsträger.
DE68912909D1 (de) Verfahren zur Herstellung von Nitrilen und Oxiden.
DE3852430T2 (de) Magnetron-Zerstäubungsgerät und Verfahren zur Anwendung desselben zur Schichtenherstellung.
DE3878110T2 (de) Zusammengesetztes magnetisches material und verfahren zu seiner herstellung.
DE69014787D1 (de) Herstellungsverfahren von polaren Stücken und der Spalte von Dünnschicht-Magnetköpfen zur Informationsverarbeitungs-, Audio- oder Videoverwendung.
DE69021140T2 (de) Vorrichtung zum Aufzeichnen und/oder Wiedergeben von Video- und Audiosignalen.
DE3888892T2 (de) Verfahren zur Herstellung von supraleitenden Oxiden und dünne Schichten aus diesen Oxiden.
DE68915590D1 (de) Verfahren zur Herstellung von magnetischem Aufzeichnungsmaterial.
DE69102798D1 (de) Verfahren zur Herstellung von magnetischen Aufzeichnungsträgern.
EP0464786A3 (en) Magnetic disk, method of manufacturing the same and magnetic disk apparatus including the magnetic disk
IT8519232A0 (it) Apparecchio per la riproduzione e/o registrazione successiva e/o selettiva di dischi portanti informazioni.
DE69319478D1 (de) Vorrichtung zur magnetischen Aufzeichnung/Wiedergabe
DE3788111D1 (de) Plättchenförmige Ferritteilchen vom Magnetoplumbittyp für magnetische Aufzeichnung und Verfahren zur Herstellung derselben.
DE69003424T2 (de) Verfahren zur Warmverformung von Kupfer-Beryllium-Legierung und hergestelltes Erzeugnis.
DE69313835T2 (de) Wärmeaufzeichnungsverfahren und Verfahren zur Herstellung von Druckplatten damit
DE3767443D1 (de) Magnetisches element zur informationsaufnahme und herstellungsverfahren.
DE3851977D1 (de) Magnetkarte und Anwendungsverfahren.
DE3678337D1 (de) Methode und apparat zur herstellung von magnetischen aufzeichnungstraegern.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: THOMSON MULTIMEDIA, BOULOGNE, FR

8339 Ceased/non-payment of the annual fee