DE69104456T2 - Magnetische Legierung, bestehend aus Kobalt, Nickel, Platin und Chrom. - Google Patents

Magnetische Legierung, bestehend aus Kobalt, Nickel, Platin und Chrom.

Info

Publication number
DE69104456T2
DE69104456T2 DE69104456T DE69104456T DE69104456T2 DE 69104456 T2 DE69104456 T2 DE 69104456T2 DE 69104456 T DE69104456 T DE 69104456T DE 69104456 T DE69104456 T DE 69104456T DE 69104456 T2 DE69104456 T2 DE 69104456T2
Authority
DE
Germany
Prior art keywords
chrome
cobalt
platinum
nickel
magnetic alloy
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
DE69104456T
Other languages
English (en)
Other versions
DE69104456D1 (de
Inventor
Tsutomu Tom Yamashita
Phuong Nguyen
Tu Chen
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.)
WD Media LLC
Original Assignee
Komag 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
Application filed by Komag Inc filed Critical Komag Inc
Application granted granted Critical
Publication of DE69104456D1 publication Critical patent/DE69104456D1/de
Publication of DE69104456T2 publication Critical patent/DE69104456T2/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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/727—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7371—Non-magnetic single underlayer comprising nickel
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/928—Magnetic property
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12944—Ni-base component

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
DE69104456T 1990-10-01 1991-10-01 Magnetische Legierung, bestehend aus Kobalt, Nickel, Platin und Chrom. Expired - Fee Related DE69104456T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/590,885 US5180640A (en) 1990-10-01 1990-10-01 Magnetic recording medium comprising a magnetic alloy layer of cobalt nickel, platinum and chromium formed directly on a nickel alloy amorphous underlayer

Publications (2)

Publication Number Publication Date
DE69104456D1 DE69104456D1 (de) 1994-11-10
DE69104456T2 true DE69104456T2 (de) 1995-05-11

Family

ID=24364127

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69104456T Expired - Fee Related DE69104456T2 (de) 1990-10-01 1991-10-01 Magnetische Legierung, bestehend aus Kobalt, Nickel, Platin und Chrom.

Country Status (4)

Country Link
US (1) US5180640A (de)
EP (1) EP0479232B1 (de)
JP (1) JPH05101369A (de)
DE (1) DE69104456T2 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6938825B1 (en) * 1989-04-24 2005-09-06 Ultracard, Inc. Data system
EP0535314A1 (de) * 1991-08-30 1993-04-07 Mitsubishi Materials Corporation Zerstäubungstarget aus einer Platin-Kobalt-Legierung und Verfahren zu dessen Herstellung
TW279972B (de) * 1993-06-21 1996-07-01 Komag Inc
US5631094A (en) * 1994-01-28 1997-05-20 Komag, Incorporated Magnetic alloy for improved corrosion resistance and magnetic performance
USRE38544E1 (en) 1994-01-28 2004-07-06 Komag, Inc. Thin film magnetic alloy having low noise, high coercivity and high squareness
US6156404A (en) * 1996-10-18 2000-12-05 Komag, Inc. Method of making high performance, low noise isotropic magnetic media including a chromium underlayer
US5871621A (en) 1994-09-27 1999-02-16 Komag, Incorporated Method of fabricating a textured magnetic storage disk
DE19508535A1 (de) * 1995-03-10 1996-09-12 Leybold Materials Gmbh Sputtertarget aus einer Kobalt-Basislegierung mit hohem Magnetfelddurchgriff
US5915915A (en) * 1996-03-07 1999-06-29 Komag, Incorporated End effector and method for loading and unloading disks at a processing station
US6103404A (en) * 1996-06-03 2000-08-15 Komag, Inc. Laser textured magnetic disk comprising NiNb
US5980997A (en) * 1996-06-03 1999-11-09 Komag, Incorporated Method for preparing a substrate for a magnetic disk
JP3249068B2 (ja) * 1997-05-26 2002-01-21 富士通株式会社 磁気記録方法及び装置
US6871787B1 (en) 1998-07-10 2005-03-29 Ultracard, Inc. Data storage card having a glass substrate and data surface region and method for using same
US6143375A (en) * 1999-01-28 2000-11-07 Komag, Incorporated Method for preparing a substrate for a magnetic disk
US8397998B1 (en) 1999-10-23 2013-03-19 Ultracard, Inc. Data storage device, apparatus and method for using same
US7487908B1 (en) 1999-10-23 2009-02-10 Ultracard, Inc. Article having an embedded accessible storage member, apparatus and method for using same
US7036739B1 (en) * 1999-10-23 2006-05-02 Ultracard, Inc. Data storage device apparatus and method for using same
US6967061B1 (en) * 1999-11-03 2005-11-22 Seagate Technology Llc Bilayer magnetic structure for high density recording media
US6537684B1 (en) * 2000-08-04 2003-03-25 International Business Machines Corporation Antiferromagnetically coupled magnetic recording media with boron-free first ferromagnetic film as nucleation layer
US6969006B1 (en) 2000-09-15 2005-11-29 Ultracard, Inc. Rotable portable card having a data storage device, apparatus and method for using same
US6572989B2 (en) 2001-06-06 2003-06-03 International Business Machines Corporation Thin film magnetic recording disk with a chromium-nickel pre-seed layer
US7502209B2 (en) * 2005-10-24 2009-03-10 Hitachi Global Storage Technologies Netherlands B.V. Read sensors having nitrogenated hard bias layers and method of making the same
JP5646865B2 (ja) 2009-03-31 2014-12-24 ダブリュディ・メディア・シンガポール・プライベートリミテッド 垂直磁気記録媒体および垂直磁気記録媒体の製造方法
US20150099143A1 (en) * 2013-04-05 2015-04-09 Toyo Kohan Co., Ltd. Method for production of hard disk substrate and hard disk substrate

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728309A (en) * 1980-07-28 1982-02-16 Tdk Corp Magnetic recording medium
US4438066A (en) * 1981-06-30 1984-03-20 International Business Machines Corporation Zero to low magnetostriction, high coercivity, polycrystalline, Co-Pt magnetic recording media
JPS58200513A (ja) * 1982-05-18 1983-11-22 Nec Corp 磁気記憶媒体
JPS5961106A (ja) * 1982-09-30 1984-04-07 Nec Corp 磁気記憶体
JPH0650683B2 (ja) * 1982-09-30 1994-06-29 日本電気株式会社 磁気記憶体
JPS5988806A (ja) * 1982-11-12 1984-05-22 Nec Corp 磁気記憶体
US4631202A (en) * 1983-11-03 1986-12-23 Hewlett-Packard Company Thin film magnetic recording film
US4610911A (en) * 1983-11-03 1986-09-09 Hewlett-Packard Company Thin film magnetic recording media
US4816127A (en) * 1984-11-15 1989-03-28 Xidex Corporation Method of producing thin-film storage disk
US4749459A (en) * 1986-03-10 1988-06-07 Komag, Inc. Method for manufacturing a thin film magnetic recording medium
JPH0758540B2 (ja) * 1986-06-27 1995-06-21 ホ−ヤ株式会社 磁気記録媒体
US4789598A (en) * 1987-01-20 1988-12-06 International Business Machines Corporation Thin film medium for horizontal magnetic recording having an improved cobalt-based alloy magnetic layer
US4786564A (en) * 1987-02-25 1988-11-22 Komag, Inc. Method for manufacturing a magnetic disk having reduced bit shift, minimized noise, increased resolution and uniform magnetic characteristics, and the resulting disk
KR970002340B1 (ko) * 1988-07-15 1997-03-03 미쓰비시 가세이 가부시끼가이샤 자기 기록 매체의 제조방법
US5045165A (en) * 1990-02-01 1991-09-03 Komag, Inc. Method for sputtering a hydrogen-doped carbon protective film on a magnetic disk
US5049451A (en) * 1990-08-15 1991-09-17 Hmt Technology Corporation High-coercivity thin-film recording medium
US5004652A (en) * 1990-08-15 1991-04-02 Hmt Technology Corporation High-coercivity thin-film recording medium and method

Also Published As

Publication number Publication date
EP0479232A1 (de) 1992-04-08
EP0479232B1 (de) 1994-10-05
JPH05101369A (ja) 1993-04-23
DE69104456D1 (de) 1994-11-10
US5180640A (en) 1993-01-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee