JPH0561685B2 - - Google Patents

Info

Publication number
JPH0561685B2
JPH0561685B2 JP2248987A JP24898790A JPH0561685B2 JP H0561685 B2 JPH0561685 B2 JP H0561685B2 JP 2248987 A JP2248987 A JP 2248987A JP 24898790 A JP24898790 A JP 24898790A JP H0561685 B2 JPH0561685 B2 JP H0561685B2
Authority
JP
Japan
Prior art keywords
layer
magnetic
liquid metal
gallium
substrate
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
JP2248987A
Other languages
English (en)
Japanese (ja)
Other versions
JPH03189922A (ja
Inventor
Jefurei Beesuman Robaato
Uinsento Jonzu Kurisutofua
Yan Kandorosu Igooru
Mohametsudo Tajii M Seijitsuto
Aren Ruuzatsuku Mitsusheru
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPH03189922A publication Critical patent/JPH03189922A/ja
Publication of JPH0561685B2 publication Critical patent/JPH0561685B2/ja
Granted 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic 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
    • G11B5/7368—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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic 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
    • 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
    • G11B5/73923—Organic polymer 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
    • 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
    • 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
    • Y10S428/9335—Product by special process
    • Y10S428/939—Molten or fused coating
    • 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
    • Y10T428/12472—Microscopic interfacial wave or roughness
    • 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
    • Y10T428/12486—Laterally noncoextensive components [e.g., embedded, etc.]
    • 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.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal 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.]
    • Y10T428/12681—Ga-, In-, Tl- or Group VA 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
    • 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
    • Y10T428/12812—Diverse refractory group metal-base components: alternative to or next to each other
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Ceramic Engineering (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP2248987A 1989-10-05 1990-09-20 磁気記録媒体の製造方法 Granted JPH03189922A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US417371 1982-09-13
US41737189A 1989-10-05 1989-10-05

Publications (2)

Publication Number Publication Date
JPH03189922A JPH03189922A (ja) 1991-08-19
JPH0561685B2 true JPH0561685B2 (enExample) 1993-09-06

Family

ID=23653750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2248987A Granted JPH03189922A (ja) 1989-10-05 1990-09-20 磁気記録媒体の製造方法

Country Status (4)

Country Link
US (1) US5134038A (enExample)
EP (1) EP0421120B1 (enExample)
JP (1) JPH03189922A (enExample)
DE (1) DE69029024T2 (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2547651B2 (ja) * 1989-05-22 1996-10-23 日本板硝子株式会社 磁気記録媒体
US5671107A (en) * 1989-12-13 1997-09-23 Hitachi, Ltd. Large capacity magnetic disc apparatus with a particular relationship between pole thickness, saturated flux density, and recording wavelength
US5356522A (en) * 1992-02-18 1994-10-18 Hmt Technology Corporation Method for manufacturing thin-film medium with chromium underlayer gradient
JP2559941B2 (ja) * 1992-03-16 1996-12-04 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 磁気記録媒体及びその製造方法並びに磁気記録装置
US5462796A (en) * 1992-05-21 1995-10-31 Stormedia, Inc. Flash chromium interlayer for improved hard disk magnetic recording performance
JP3018762B2 (ja) * 1992-08-06 2000-03-13 富士電機株式会社 磁気記録媒体およびその製造方法
US5421975A (en) * 1992-10-13 1995-06-06 Mahvan; Nader Method for enhancing the magnetic and roughness properties of thin film magnetic recording media and the resulting enhanced media
JPH06162493A (ja) * 1992-11-18 1994-06-10 Nec Ibaraki Ltd 磁気ディスク用基板
US5399386A (en) * 1992-12-29 1995-03-21 International Business Machines Corporation In-situ texturing of a thin film magnetic medium
JPH0721561A (ja) * 1993-06-30 1995-01-24 Ind Technol Res Inst ディスクのテクスチュア製作方法
US6294058B1 (en) * 1994-07-15 2001-09-25 United Module Corporation Enhanced methods and apparatus for producing micro-textured, thin film, magnetic disc media and compositely micro-textured disc media produced thereby
US5705287A (en) * 1994-09-20 1998-01-06 International Business Machines Corporation Magnetic recording disk with metal nitride texturing layer
US5871621A (en) * 1994-09-27 1999-02-16 Komag, Incorporated Method of fabricating a textured magnetic storage disk
US5599632A (en) * 1995-05-10 1997-02-04 Akashic Memories Corporation Carbon seedlayer on non-metallic substrates for magnetic recording media
KR100438802B1 (ko) * 1996-12-17 2004-08-31 삼성전자주식회사 양자디스크및그제조방법
US6268036B1 (en) 1998-06-26 2001-07-31 International Business Machines Corporation Thin film disk with highly faulted crystalline underlayer
JP3954553B2 (ja) * 2003-09-30 2007-08-08 富士通株式会社 記録媒体およびその製造方法
US8130468B2 (en) * 2007-12-17 2012-03-06 Hitachi Global Storage Technolgies Netherlands B.V. System and apparatus for patterned media with reduced magnetic trench material
US20090186443A1 (en) * 2008-01-22 2009-07-23 International Business Machines Corporation Method to enhance performance of complex metal oxide programmable memory
CN107819069B (zh) * 2017-10-30 2019-07-12 清华大学 基于纳米液态金属颗粒的相变存储单元及该单元构成的存储器

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1188796A (en) * 1981-04-14 1985-06-11 Kenji Yazawa Magnetic recording medium
JPS57169925A (en) * 1981-04-14 1982-10-19 Sony Corp Magnetic recording medium
JPS57191830A (en) * 1981-05-22 1982-11-25 Sony Corp Magnetic recording medium
JPS5862825A (ja) * 1981-10-08 1983-04-14 Sony Corp 磁気記録媒体
US4493856A (en) * 1982-03-18 1985-01-15 International Business Machines Corporation Selective coating of metallurgical features of a dielectric substrate with diverse metals
JPS5930230A (ja) * 1982-08-12 1984-02-17 Sony Corp 金属薄膜型磁気記録媒体
JPS5968815A (ja) * 1982-10-12 1984-04-18 Sony Corp 磁気記録媒体
US4746580A (en) * 1983-03-31 1988-05-24 International Business Machines Corporation Read-only magnetic recording media
JPS60140542A (ja) * 1983-12-28 1985-07-25 Sony Corp 磁気記録媒体の製法
JPS60182012A (ja) * 1984-02-28 1985-09-17 Sony Corp 薄膜磁気記録媒体
JPS60231911A (ja) * 1984-04-27 1985-11-18 Sony Corp 磁気記録媒体
JPS60237625A (ja) * 1984-05-10 1985-11-26 Sony Corp 磁気記録媒体
JPS61222021A (ja) * 1985-03-28 1986-10-02 Hoya Corp 磁気記録媒体
JPS61240429A (ja) * 1985-04-17 1986-10-25 Sony Corp 磁気記録媒体
JPS62103823A (ja) * 1985-10-31 1987-05-14 Sony Corp 磁気デイスク
JPS62112774A (ja) * 1985-11-12 1987-05-23 Sanyo Kokusaku Pulp Co Ltd 乱反射蒸着膜の形成方法

Also Published As

Publication number Publication date
EP0421120B1 (en) 1996-10-30
DE69029024T2 (de) 1997-04-30
DE69029024D1 (de) 1996-12-05
JPH03189922A (ja) 1991-08-19
EP0421120A2 (en) 1991-04-10
EP0421120A3 (en) 1991-10-16
US5134038A (en) 1992-07-28

Similar Documents

Publication Publication Date Title
US5134038A (en) Thin film magnetic recording medium with controlled grain morphology and topology
US4833020A (en) Magnetic recording medium
US4610911A (en) Thin film magnetic recording media
US7384699B2 (en) Magnetic recording media with tuned exchange coupling and method for fabricating same
US5820963A (en) Method of manufacturing a thin film magnetic recording medium having low MrT value and high coercivity
US5840394A (en) Method of manufacturing a thin film magnetic recording medium having low MrT value and high coercivity
US4631202A (en) Thin film magnetic recording film
US5053250A (en) Thin film magnetic medium with controlled grain morphology and topology for improved performance
US5252367A (en) Method of manufacturing a magnetic recording medium
US5871621A (en) Method of fabricating a textured magnetic storage disk
US5413835A (en) Magnetic recording medium having an underlayer of low melting point metal alloy in the form of spherically shaped structures
JPH071537B2 (ja) 磁気記録ディスク、基板及びその製造方法
US20050106422A1 (en) Thin film with exchange coupling between magnetic grains of the thin film
JPH09259418A (ja) 磁気記録媒体及びその製造方法
JPH07118417B2 (ja) 磁気記録媒体
US20110129692A1 (en) Magnetic alloy materials with hcp stabilized microstructure, magnetic recording media comprising same, and fabrication method therefor
US5399386A (en) In-situ texturing of a thin film magnetic medium
KR100233697B1 (ko) 자기 기록 매체
JPH04265511A (ja) 磁気記録媒体
EP0179382B1 (en) Magnetic recording medium
JPH0817032A (ja) 磁気記録媒体およびその製造方法
JP2853529B2 (ja) 磁気記録媒体用基板およびそれを用いた磁気記録媒体
JPH04255908A (ja) 磁気ディスク用基板
JP2559984B2 (ja) 磁気記録媒体
JPH05143953A (ja) 磁気記録媒体