DE68923876D1 - Träger für Datenspeicher und Verfahren zu seiner Herstellung. - Google Patents

Träger für Datenspeicher und Verfahren zu seiner Herstellung.

Info

Publication number
DE68923876D1
DE68923876D1 DE68923876T DE68923876T DE68923876D1 DE 68923876 D1 DE68923876 D1 DE 68923876D1 DE 68923876 T DE68923876 T DE 68923876T DE 68923876 T DE68923876 T DE 68923876T DE 68923876 D1 DE68923876 D1 DE 68923876D1
Authority
DE
Germany
Prior art keywords
manufacture
storage medium
data storage
data
medium
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
DE68923876T
Other languages
English (en)
Other versions
DE68923876T2 (de
Inventor
Jodie A Christner
Rajiv Ranjan
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology International
Seagate Technology LLC
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 Seagate Technology International, Seagate Technology LLC filed Critical Seagate Technology International
Application granted granted Critical
Publication of DE68923876D1 publication Critical patent/DE68923876D1/de
Publication of DE68923876T2 publication Critical patent/DE68923876T2/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
    • G11B5/73—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
    • G11B5/7377—Physical structure of underlayer, e.g. texture
    • 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
    • G11B5/7373—Non-magnetic single underlayer comprising chromium
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73913—Composites or coated substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • G11B5/73919—Aluminium or titanium elemental or alloy substrates
    • 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.]
    • Y10T428/12736—Al-base component
    • Y10T428/1275—Next to 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
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-base component
    • Y10T428/12854—Next to Co-, Fe-, or Ni-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
DE68923876T 1989-07-24 1989-11-28 Träger für Datenspeicher und Verfahren zu seiner Herstellung. Expired - Fee Related DE68923876T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/383,441 US5162158A (en) 1989-07-24 1989-07-24 Low noise magnetic thin film longitudinal media

Publications (2)

Publication Number Publication Date
DE68923876D1 true DE68923876D1 (de) 1995-09-21
DE68923876T2 DE68923876T2 (de) 1995-12-21

Family

ID=23513163

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68923876T Expired - Fee Related DE68923876T2 (de) 1989-07-24 1989-11-28 Träger für Datenspeicher und Verfahren zu seiner Herstellung.

Country Status (4)

Country Link
US (1) US5162158A (de)
EP (1) EP0412222B1 (de)
JP (1) JP2996442B2 (de)
DE (1) DE68923876T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324593A (en) * 1992-02-18 1994-06-28 Hmt Technology Corporation Thin film medium with layered film gradient
JPH05135342A (ja) * 1991-11-14 1993-06-01 Hitachi Metals Ltd 磁気記録媒体
US5441788A (en) * 1993-11-03 1995-08-15 Hewlett-Packard Company Method of preparing recording media for a disk drive and disk drive recording media
US5993937A (en) * 1993-11-30 1999-11-30 Matsushita Electric Industrial Co., Ltd. Magneto-optic recording medium and method of fabricating the same
US5658659A (en) * 1994-01-28 1997-08-19 Komag, Inc. Magnetic alloy and method for manufacturing same
US5631094A (en) * 1994-01-28 1997-05-20 Komag, Incorporated Magnetic alloy for improved corrosion resistance and magnetic performance
US5846648A (en) * 1994-01-28 1998-12-08 Komag, Inc. Magnetic alloy having a structured nucleation layer and method for manufacturing same
US6146740A (en) * 1994-11-28 2000-11-14 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium and method of fabricating the same
EP0817174A1 (de) * 1995-03-08 1998-01-07 TAKAHASHI, Migaku Magnetisches aufzeichnungsmedium und verfahren zu seiner herstellung
US5834085A (en) * 1996-02-26 1998-11-10 Densitek Corporation Grain isolated multilayer perpendicular recording medium
JP3669457B2 (ja) 1996-03-19 2005-07-06 富士通株式会社 磁気記録媒体及びその製造方法
US5993956A (en) * 1997-04-22 1999-11-30 Carnegie Mellon University Manganese containing layer for magnetic recording media
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
US6268036B1 (en) * 1998-06-26 2001-07-31 International Business Machines Corporation Thin film disk with highly faulted crystalline underlayer
US6432563B1 (en) 2000-04-03 2002-08-13 Carnegie Mellon University Zinc enhanced hard disk media
JP4097059B2 (ja) * 2001-08-01 2008-06-04 富士通株式会社 磁気記録媒体の製造方法
JP2003151117A (ja) * 2001-08-29 2003-05-23 Hoya Corp 磁気記録媒体
JP2005332474A (ja) * 2004-05-19 2005-12-02 Hitachi Global Storage Technologies Netherlands Bv 熱アシスト磁気記録装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61217925A (ja) * 1985-03-23 1986-09-27 Victor Co Of Japan Ltd 磁気記録媒体
US4632883A (en) * 1985-04-22 1986-12-30 International Business Machines Corporation Vertical recording medium with improved perpendicular magnetic anisotropy due to influence of beta-tantalum underlayer
JP2550039B2 (ja) * 1986-12-12 1996-10-30 株式会社日立製作所 面内磁気記録媒体
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
US4792497A (en) * 1987-01-29 1988-12-20 Hitachi, Ltd. Magnetic recording media for longitudinal recording
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
JPH02161617A (ja) * 1988-03-15 1990-06-21 Ulvac Corp 面内記録型磁気記録体の製造方法
JPH0268711A (ja) * 1988-09-05 1990-03-08 Showa Denko Kk 磁気記録媒体

Also Published As

Publication number Publication date
US5162158A (en) 1992-11-10
JP2996442B2 (ja) 1999-12-27
JPH0363919A (ja) 1991-03-19
DE68923876T2 (de) 1995-12-21
EP0412222B1 (de) 1995-08-16
EP0412222A3 (en) 1991-08-28
EP0412222A2 (de) 1991-02-13

Similar Documents

Publication Publication Date Title
DE68922185D1 (de) Optischer Informationsaufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69022826D1 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69122916T2 (de) Informationsaufzeichnungsmedium und Verfahren zu seiner Herstellung
DE3575289D1 (de) Kompaktes kubisches bornitrid und verfahren zu seiner herstellung.
DE69014323T2 (de) Dünnfilmspeicher und Verfahren zu seiner Herstellung.
DE68923876T2 (de) Träger für Datenspeicher und Verfahren zu seiner Herstellung.
DE69028948D1 (de) Aufzeichnungsmedium für Senkrechtmagnetisierung und Verfahren zu dessen Herstellung
DE3866262D1 (de) Aufzeichnungstraeger und verfahren zu seiner herstellung.
DE3769517D1 (de) Magnetisches aufzeichnungsmedium und verfahren zu dessen herstellung.
DE69030982D1 (de) Optisches Aufzeichnungsmedium und Verfahren zu seiner Herstellung
DE69322232T2 (de) Informationen aufzeichnendes Medium, Verfahren zu seiner Herstellung und seine Verwendung
DE58903737D1 (de) Flaechenlager und verfahren zu seiner herstellung.
DE3581378D1 (de) Senkrecht magnetisiertes aufzeichnungsmedium und verfahren zu seiner herstellung.
DE3574793D1 (de) Magnetischer aufzeichnungstraeger und verfahren zu seiner herstellung.
DE68929107D1 (de) Optisches Datenaufzeichnungsmedium und Verfahren zu seiner Herstellung.
DE69518786T2 (de) Informationsaufzeichnungsträger und Verfahren zu seiner Herstellung
DE3862880D1 (de) Magneto-optischer speicher und verfahren zu seiner herstellung.
DE68919753D1 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.
DE69023835D1 (de) Träger für senkrechte magnetische Aufzeichnung und Verfahren zu seiner Herstellung.
DE69004431D1 (de) Verfahren und Vorrichtung für Datenspeicherverbindung.
DE3866322D1 (de) Informationsspeichermedium und verfahren zu seiner herstellung.
DE3788069T2 (de) Optomagnetisches speichermedium und verfahren zur herstellung.
DE69020393D1 (de) Magnetooptischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.
DE3766872D1 (de) Magnetisches aufzeichnungsmedium und verfahren zu dessen herstellung.
DE69102732T2 (de) Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US

8328 Change in the person/name/address of the agent

Free format text: HENKEL, FEILER & HAENZEL, 81675 MUENCHEN

8339 Ceased/non-payment of the annual fee