ES2139044T3 - Procedimiento de fabricacion de un cabezal magnetico de pelicula delgada y cabezal fabricado por dicho procedimiento. - Google Patents

Procedimiento de fabricacion de un cabezal magnetico de pelicula delgada y cabezal fabricado por dicho procedimiento.

Info

Publication number
ES2139044T3
ES2139044T3 ES94200677T ES94200677T ES2139044T3 ES 2139044 T3 ES2139044 T3 ES 2139044T3 ES 94200677 T ES94200677 T ES 94200677T ES 94200677 T ES94200677 T ES 94200677T ES 2139044 T3 ES2139044 T3 ES 2139044T3
Authority
ES
Spain
Prior art keywords
layer
insulation
procedure
magnetic
face
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 - Lifetime
Application number
ES94200677T
Other languages
English (en)
Inventor
Lambertus Postma
Jan Haisma
Jacobus Josephus Maria Ruigrok
Gerardus Henricus Johan Somers
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.)
OnStream Inc
Original Assignee
OnStream Inc
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 BE9300274A external-priority patent/BE1006925A3/nl
Application filed by OnStream Inc filed Critical OnStream Inc
Application granted granted Critical
Publication of ES2139044T3 publication Critical patent/ES2139044T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
    • 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
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
    • G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
    • 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
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
    • G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
    • G11B5/3922—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure
    • G11B5/3925—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure the two parts being thin films
    • 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
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

SE PRESENTA UN METODO PARA MANUFACTURAR UNA CABEZA MAGNETICA MAGNETORRESISTIVA EN LA CUAL UNA PRIMERA CAPA DE AISLAMIENTO (5) DE UN MATERIAL NO MAGNETICO SE FORMA SOBRE UNA CARA DE SOPORTE (3A) SOBRE DICHA CAPA DE AISLAMIENTO SE FORMA UNA CAPA SUAVEMENTE MAGNETICA QUE TIENE UNA CARA SUPERIOR DISTANCIADA DE LA PRIMERA CAPA MAGNETICA, MEDIANTE LA DEPOSICION DE UN MATERIAL SUAVEMENTE MAGNETICO. SUBSECUENTEMENTE, SE QUITA UNA PARTE DE LA CAPA PARA FORMAR LOS ELEMENTOS DE GUIA DE FLUJO (17A, 17B) Y UNA ABERTURA QUE SE EXTIENDE ENTRE DICHOS ELEMENTOS, Y UN MATERIAL NO MAGNETICO PARA FORMAR UNA SEGUNDA CAPA DE AISLAMIENTO (18) QUE TENGA UNA CARA SUPERIOR SEPARADA DE LA CAPA SUAVEMENTE MAGNETICA SE DEPOSITA SOBRE DICHA CAPA Y EN LA ABERTURA FORMADA EN LA MISMA, DICHA SEGUNDA CAPA DE AISLAMIENTO TIENE UN GROSOR TAL QUE, VISTO EN UNA DIRECCION TRANSVERSAL A LA CARA DE SOPORTE, LA DISTANCIA MENOR ENTRE LA CARA DE SOPORTE Y LA CARA SUPERIOR DE LA SEGUNDA CAPA DE AISLAMIENTO ES MAYOR QUE LA DISTANCIA MAYOR ENTRE LA CARA DE SOPORTE Y LA CARA SUPERIOR DE LA CAPA SUAVEMENTE MAGNETICA. SUBSECUENTEMENTE, SE REALIZA UN TRATAMIENTO DE PULIDO MECANOQUIMICO PARA FORMAR UNA SUPERFICIE PRINCIPAL (19) EN LA CUAL SE DEPOSITA SUBSECUENTEMENTE EL MATERIAL MAGNETORRESISTIVO PARA FORMAR UN ELEMENTO MAGNETORRESISTIVO (23).
ES94200677T 1993-03-22 1994-03-16 Procedimiento de fabricacion de un cabezal magnetico de pelicula delgada y cabezal fabricado por dicho procedimiento. Expired - Lifetime ES2139044T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9300274A BE1006925A3 (nl) 1993-03-22 1993-03-22 Werkwijze voor het vervaardigen van een dunnefilm magneetkop en magneetkop vervaardigd volgens de werkwijze.
EP93200993 1993-04-06

Publications (1)

Publication Number Publication Date
ES2139044T3 true ES2139044T3 (es) 2000-02-01

Family

ID=25662714

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94200677T Expired - Lifetime ES2139044T3 (es) 1993-03-22 1994-03-16 Procedimiento de fabricacion de un cabezal magnetico de pelicula delgada y cabezal fabricado por dicho procedimiento.

Country Status (7)

Country Link
US (1) US5483735A (es)
JP (1) JP3284156B2 (es)
KR (1) KR100297877B1 (es)
DE (1) DE69420766T2 (es)
ES (1) ES2139044T3 (es)
MY (1) MY111205A (es)
SG (1) SG48089A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5796560A (en) * 1995-03-13 1998-08-18 Kabushiki Kaisha Toshiba Magnetoresistive head
KR970703576A (ko) * 1995-03-24 1997-07-03 요트.게.아 롤페즈 자기헤드와 측정디바이스와 전류 디바이스를 구비한 시스템(System comprising a magnetic head, a measuring device and a current device)
US5905000A (en) * 1996-09-03 1999-05-18 Nanomaterials Research Corporation Nanostructured ion conducting solid electrolytes
FR2754905B1 (fr) * 1996-10-22 1998-11-20 Commissariat Energie Atomique Procede de realisation d'un capteur magnetique magnetoresistif et capteur obtenu par ce procede
US6747854B1 (en) 1997-02-20 2004-06-08 Koninklijke Philips Electronics N.V. Multi-channel magnetic head with magnetoresistive elements
US5982177A (en) * 1997-08-08 1999-11-09 Florida State University Magnetoresistive sensor magnetically biased in a region spaced from a sensing region
JP2002531912A (ja) * 1998-12-03 2002-09-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 積層組立体の形成方法
JP2000285409A (ja) 1999-03-29 2000-10-13 Toshiba Corp 磁気ヘッドの製造方法および磁気ヘッド
US6554878B1 (en) 1999-06-14 2003-04-29 International Business Machines Corporation Slurry for multi-material chemical mechanical polishing
US6131271A (en) * 1999-06-25 2000-10-17 International Business Machines Corporation Method of planarizing first pole piece layer of write head by lapping without delamination of first pole piece layer from wafer substrate
US6651313B1 (en) * 2000-10-06 2003-11-25 International Business Machines Corporation Method for manufacturing a magnetic head
DE10107816A1 (de) * 2001-02-16 2002-09-05 Philips Corp Intellectual Pty Netzwerk mit mehreren über Brücken-Terminals verbindbaren Sub-Netzwerken
US7469465B2 (en) * 2004-06-30 2008-12-30 Hitachi Global Storage Technologies Netherlands B.V. Method of providing a low-stress sensor configuration for a lithography-defined read sensor
US20060025053A1 (en) * 2004-07-30 2006-02-02 Marie-Claire Cyrille Method for fabricating a magnetic transducer using a slurry with spherical particles for CMP-assisted photoresist lift-off
US20070185065A1 (en) * 2006-02-03 2007-08-09 Vikramjit Chhokar Combination therapy for coronary artery disease
US7631416B2 (en) * 2007-05-14 2009-12-15 Tdk Corporation Method of making thin film magnetic head using electric lapping guide

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052748A (en) * 1974-04-01 1977-10-04 U.S. Philips Corporation Magnetoresistive magnetic head
JPS59104717A (ja) * 1982-12-08 1984-06-16 Comput Basic Mach Technol Res Assoc 薄膜磁気ヘツドおよびその製造方法
JPS6292219A (ja) * 1985-10-18 1987-04-27 Victor Co Of Japan Ltd 磁気抵抗効果型薄膜磁気ヘツド
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
JPH01289224A (ja) * 1988-05-17 1989-11-21 Sumitomo Special Metals Co Ltd 薄膜磁気ヘッド用基板及びその製造方法
JPH04351706A (ja) * 1991-05-30 1992-12-07 Matsushita Electric Ind Co Ltd 複合型薄膜磁気ヘッド
EP0579298B1 (en) * 1992-06-15 1997-09-03 Koninklijke Philips Electronics N.V. Method of manufacturing a plate having a plane main surface, method of manufacturing a plate having parallel main surfaces, and device suitable for implementing said methods

Also Published As

Publication number Publication date
JP3284156B2 (ja) 2002-05-20
JPH076332A (ja) 1995-01-10
DE69420766T2 (de) 2000-06-29
DE69420766D1 (de) 1999-10-28
MY111205A (en) 1999-09-30
US5483735A (en) 1996-01-16
SG48089A1 (en) 1998-04-17
KR100297877B1 (ko) 2001-10-24
KR940022387A (ko) 1994-10-20
HK1013363A1 (en) 1999-08-20

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