WO2013015750A8 - A method of manufacturing glass substrates for information recording medium - Google Patents

A method of manufacturing glass substrates for information recording medium Download PDF

Info

Publication number
WO2013015750A8
WO2013015750A8 PCT/TH2011/000029 TH2011000029W WO2013015750A8 WO 2013015750 A8 WO2013015750 A8 WO 2013015750A8 TH 2011000029 W TH2011000029 W TH 2011000029W WO 2013015750 A8 WO2013015750 A8 WO 2013015750A8
Authority
WO
WIPO (PCT)
Prior art keywords
glass substrates
polishing
recording medium
annular zones
information recording
Prior art date
Application number
PCT/TH2011/000029
Other languages
French (fr)
Other versions
WO2013015750A1 (en
Inventor
Supagan DEEPLUB
Original Assignee
Hoya Glass Disk (Thailand) Ltd
Hoya Corporation
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 Glass Disk (Thailand) Ltd, Hoya Corporation filed Critical Hoya Glass Disk (Thailand) Ltd
Priority to PCT/TH2011/000029 priority Critical patent/WO2013015750A1/en
Priority to CN201180072539.2A priority patent/CN103875036B/en
Publication of WO2013015750A1 publication Critical patent/WO2013015750A1/en
Publication of WO2013015750A8 publication Critical patent/WO2013015750A8/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
    • B24B37/005—Control means for lapping machines or devices
    • B24B37/015—Temperature control
    • 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
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/14—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the temperature during grinding
    • 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

Abstract

The present invention provides a method of manufacturing glass substrates for information recording medium comprising steps of polishing of several glass substrates polished at a time using sun-and-planet gear type polishing machine; selectively determining at least two different annular zones of the polishing plate and controlling the temperature variation of the determined annular zones of the polishing machine so as to suppress and control thickness variation of glass substrates. Thickness variation can be suppressed and controlled when temperature gap on different zones of polishing plate is low. It is also the object of the present invention that the temperature variation of at least two different annular zones of polishing plate of the polishing machine is determined to be not over 2 °C. By such a method according to this invention, the surface of glass substrates on different annular zones of polishing plate can be polished so as to have low thickness variations.
PCT/TH2011/000029 2011-07-25 2011-07-25 A method of manufacturing glass substrates for information recording medium WO2013015750A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/TH2011/000029 WO2013015750A1 (en) 2011-07-25 2011-07-25 A method of manufacturing glass substrates for information recording medium
CN201180072539.2A CN103875036B (en) 2011-07-25 2011-07-25 The method manufacturing the glass substrate for information recording carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TH2011/000029 WO2013015750A1 (en) 2011-07-25 2011-07-25 A method of manufacturing glass substrates for information recording medium

Publications (2)

Publication Number Publication Date
WO2013015750A1 WO2013015750A1 (en) 2013-01-31
WO2013015750A8 true WO2013015750A8 (en) 2014-01-23

Family

ID=47601374

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TH2011/000029 WO2013015750A1 (en) 2011-07-25 2011-07-25 A method of manufacturing glass substrates for information recording medium

Country Status (2)

Country Link
CN (1) CN103875036B (en)
WO (1) WO2013015750A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0592363A (en) * 1991-02-20 1993-04-16 Hitachi Ltd Duplex simultaneous polishing method for base and its device, polishing method for magnetic disc base using above device and manufacture of magnetic disc and magnetic disc
JPH052780A (en) * 1991-06-27 1993-01-08 Canon Inc Production of stamper
JPH07110968A (en) * 1993-10-12 1995-04-25 Matsushita Electric Ind Co Ltd Apparatus and method for polishing of tape for optical-disk master disk
US5643050A (en) * 1996-05-23 1997-07-01 Industrial Technology Research Institute Chemical/mechanical polish (CMP) thickness monitor
ATE313412T1 (en) * 2001-06-26 2006-01-15 Lam Res Corp SYSTEM FOR FINAL POINT DETERMINATION IN CHEMICAL-MECHANICAL POLISHING
JP2006068870A (en) * 2004-09-03 2006-03-16 Hoya Corp Method of manufacturing glass substrate for magnetic disk, method of manufacturing magnetic disk, and polishing cloth
JP2007090452A (en) * 2005-09-27 2007-04-12 Hoya Corp Manufacturing method of glass substrate for magnetic disc and manufacturing method of magnetic disc
JP2007098484A (en) * 2005-09-30 2007-04-19 Hoya Corp Glass substrate for magnetic disk and manufacturing method of magnetic disk
JP5242015B2 (en) * 2006-03-14 2013-07-24 Ｈｏｙａ株式会社 Manufacturing method of glass substrate for magnetic disk and manufacturing method of magnetic disk
JP5334428B2 (en) * 2008-03-10 2013-11-06 Ｈｏｙａ株式会社 Manufacturing method of glass substrate for magnetic disk
MY183006A (en) * 2009-12-29 2021-02-05 Hoya Corp Manufacturing method of glass substrate for magnetic disk

Also Published As

Publication number Publication date
CN103875036A (en) 2014-06-18
WO2013015750A1 (en) 2013-01-31
CN103875036B (en) 2016-12-21

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