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CN104584126B8 - 磁盘用玻璃基板、磁盘以及磁盘用玻璃基板的制造方法 - Google Patents

磁盘用玻璃基板、磁盘以及磁盘用玻璃基板的制造方法 Download PDF

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Publication number
CN104584126B8
CN104584126B8 CN201380044680.0A CN201380044680A CN104584126B8 CN 104584126 B8 CN104584126 B8 CN 104584126B8 CN 201380044680 A CN201380044680 A CN 201380044680A CN 104584126 B8 CN104584126 B8 CN 104584126B8
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CN
China
Prior art keywords
disc
glass substrate
disk
roughness
manufacture method
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.)
Active
Application number
CN201380044680.0A
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English (en)
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CN104584126A (zh
CN104584126B (zh
Inventor
植田政明
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.)
Hoya Corp
Original Assignee
Hoya 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 Hoya Corp filed Critical Hoya Corp
Priority to CN201710451295.8A priority Critical patent/CN107256712B/zh
Publication of CN104584126A publication Critical patent/CN104584126A/zh
Publication of CN104584126B publication Critical patent/CN104584126B/zh
Application granted granted Critical
Publication of CN104584126B8 publication Critical patent/CN104584126B8/zh
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
    • B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
    • B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2204/00—Glasses, glazes or enamels with special properties
    • C03C2204/08—Glass having a rough surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

本发明的磁盘用玻璃基板具有一对主表面、侧壁面、以及主表面与侧壁面之间的倒角面。在该磁盘用玻璃基板中，对于侧壁面和倒角面中的至少任意一个面的表面特性来说，算术平均粗糙度(Ra)在0.015μm以下，并且，在粗糙度截面积的负荷率曲线中，粗糙度百分比为60％处的粗糙度截面积的负荷率在95％以上。
CN201380044680.0A 2012-09-28 2013-06-28 磁盘用玻璃基板、磁盘以及磁盘用玻璃基板的制造方法 Active CN104584126B8 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710451295.8A CN107256712B (zh) 2012-09-28 2013-06-28 磁盘用玻璃基板及其制造方法、磁盘、圆环状的玻璃基板

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012218412 2012-09-28
JP2012-218412 2012-09-28
PCT/JP2013/067940 WO2014050241A1 (ja) 2012-09-28 2013-06-28 磁気ディスク用ガラス基板、磁気ディスク、磁気ディスク用ガラス基板の製造方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201710451295.8A Division CN107256712B (zh) 2012-09-28 2013-06-28 磁盘用玻璃基板及其制造方法、磁盘、圆环状的玻璃基板

Publications (3)

Publication Number Publication Date
CN104584126A CN104584126A (zh) 2015-04-29
CN104584126B CN104584126B (zh) 2017-06-23
CN104584126B8 true CN104584126B8 (zh) 2017-08-08

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CN201380044680.0A Active CN104584126B8 (zh) 2012-09-28 2013-06-28 磁盘用玻璃基板、磁盘以及磁盘用玻璃基板的制造方法

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Country Status (6)

Country Link
US (2) US9697860B2 (zh)
JP (2) JP5592037B1 (zh)
CN (2) CN107256712B (zh)
MY (1) MY169200A (zh)
SG (2) SG10201706984QA (zh)
WO (1) WO2014050241A1 (zh)

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WO2018182046A1 (ja) 2017-03-31 2018-10-04 Hoya株式会社 磁気ディスク用非磁性基板及び磁気ディスク
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US11471993B2 (en) 2018-03-09 2022-10-18 Hoya Corporation Spacer, laminate of substrates, method for manufacturing substrate, and method for manufacturing substrate for magnetic disk
US11056352B2 (en) 2018-07-31 2021-07-06 Taiwan Semiconductor Manufacturing Company, Ltd. Magnetic slurry for highly efficient CMP
US20220227654A1 (en) * 2019-06-28 2022-07-21 Hoya Corporation Method for manufacturing glass plate and method for manufacturing magnetic disk
CN114175156B (zh) * 2019-07-31 2024-04-19 Hoya株式会社 圆环形状的玻璃板的制造方法、磁盘用玻璃基板的制造方法、磁盘的制造方法、圆环形状的玻璃板、磁盘用玻璃基板以及磁盘
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Also Published As

Publication number Publication date
MY169200A (en) 2019-02-26
US20150255103A1 (en) 2015-09-10
US10580448B2 (en) 2020-03-03
JP2014179160A (ja) 2014-09-25
US9697860B2 (en) 2017-07-04
SG10201706984QA (en) 2017-10-30
JP6215770B2 (ja) 2017-10-18
CN104584126A (zh) 2015-04-29
SG11201501455YA (en) 2015-05-28
JP5592037B1 (ja) 2014-09-17
CN104584126B (zh) 2017-06-23
WO2014050241A1 (ja) 2014-04-03
JPWO2014050241A1 (ja) 2016-08-22
US20170263278A1 (en) 2017-09-14
CN107256712B (zh) 2020-04-14
CN107256712A (zh) 2017-10-17

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Correction item: Priority

Correct: 2012-218412 2012.09.28 JP

Number: 25-02

Volume: 33

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Correction item: Priority

Correct: 2012-218412 2012.09.28 JP

Number: 25-02

Page: The title page

Volume: 33