MY168980A - Method for manufacturing magnetic-disk glass substrate, method for manufacturing magnetic disk, and polishing pad - Google Patents

Method for manufacturing magnetic-disk glass substrate, method for manufacturing magnetic disk, and polishing pad

Info

Publication number
MY168980A
MY168980A MYPI2015703140A MYPI2015703140A MY168980A MY 168980 A MY168980 A MY 168980A MY PI2015703140 A MYPI2015703140 A MY PI2015703140A MY PI2015703140 A MYPI2015703140 A MY PI2015703140A MY 168980 A MY168980 A MY 168980A
Authority
MY
Malaysia
Prior art keywords
polishing pad
manufacturing magnetic
disk
glass substrate
manufacturing
Prior art date
Application number
MYPI2015703140A
Inventor
Yoshihiro Tawara
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
Publication of MY168980A publication Critical patent/MY168980A/en

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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • 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
    • B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
    • 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
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The present invention provides a method for manufacturing a magnetic-disk glass substrate that is capable of reducing microwaviness having a shape wavelength of 50 to 150 ?m. In the present invention, a polishing pad (7) is used in polishing processing that has a standard deviation of 0.15 ?m or less obtained when a depression amount of the polishing pad (7) that occurs when a circular portion of a cylindrical indenter (10) having a diameter of 50 ?m is pushed into a surface of the polishing pad (7) at a load of 2.5 mN is successively measured twelve times at an interval of 50 ?m on the polishing pad surface, from data on ten depression amounts excluding the maximum value and the minimum value of the obtained depression amounts.
MYPI2015703140A 2013-03-30 2014-03-30 Method for manufacturing magnetic-disk glass substrate, method for manufacturing magnetic disk, and polishing pad MY168980A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013075488 2013-03-30
JP2013075487 2013-03-30

Publications (1)

Publication Number Publication Date
MY168980A true MY168980A (en) 2019-01-29

Family

ID=51658322

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2015703140A MY168980A (en) 2013-03-30 2014-03-30 Method for manufacturing magnetic-disk glass substrate, method for manufacturing magnetic disk, and polishing pad

Country Status (5)

Country Link
JP (1) JP6031593B2 (en)
CN (1) CN105051816B (en)
MY (1) MY168980A (en)
SG (1) SG11201507852XA (en)
WO (1) WO2014163026A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10748778B2 (en) 2015-02-12 2020-08-18 Fujimi Incorporated Method for polishing silicon wafer and surface treatment composition
EP3258483A4 (en) * 2015-02-12 2018-02-28 Fujimi Incorporated Method for polishing silicon wafer and surface treatment composition
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
CN109909868B (en) * 2019-04-23 2023-11-21 蚌埠中光电科技有限公司 TFT-LCD glass surface grinding device and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075049U (en) * 1993-06-22 1995-01-24 日本板硝子株式会社 Polishing pad evaluation device
JP4414697B2 (en) * 2003-08-05 2010-02-10 東洋インキ製造株式会社 Polishing pad laminate and double-sided adhesive sheet
MY157202A (en) * 2006-09-29 2016-05-13 Hoya Corp Method of manufacturing glass substrate for magnetic disk, method of manufacturing magnetic disk, and polishing apparatus of glass substrate for magnetic disk
JP5298688B2 (en) * 2008-07-30 2013-09-25 東レ株式会社 Polishing pad
JP2012101338A (en) * 2010-11-12 2012-05-31 Toray Coatex Co Ltd Polishing pad

Also Published As

Publication number Publication date
JPWO2014163026A1 (en) 2017-02-16
CN105051816A (en) 2015-11-11
WO2014163026A8 (en) 2015-09-03
CN105051816B (en) 2019-03-12
SG11201507852XA (en) 2015-10-29
JP6031593B2 (en) 2016-11-24
WO2014163026A1 (en) 2014-10-09

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