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MY142629A - Method of producing a glass substrate for a magnetic recording medium and method of producing a magnetic recording medium - Google Patents

Method of producing a glass substrate for a magnetic recording medium and method of producing a magnetic recording medium

Info

Publication number
MY142629A
MY142629A MYPI20023627A MYPI20023627A MY142629A MY 142629 A MY142629 A MY 142629A MY PI20023627 A MYPI20023627 A MY PI20023627A MY PI20023627 A MYPI20023627 A MY PI20023627A MY 142629 A MY142629 A MY 142629A
Authority
MY
Malaysia
Prior art keywords
producing
recording medium
magnetic recording
glass substrate
abrasive
Prior art date
Application number
MYPI20023627A
Inventor
Toshio Takizawa
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 MY142629A publication Critical patent/MY142629A/en

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

IN A METHOD OF PRODUCING A GLASS SUBSTRATE FOR A MAGNETIC RECORDING MEDIUM, INCLUDING THE STEPS OF GRINDING A PRINCIPAL SURFACE OF THE GLASS SUBSTRATE OF A DISK-SHAPE AND POLISHING, AFTER THE GRINDING STEP, THE PRINCIPAL SURFACE OF THE GLASS SUBSTRATE BY AN ABRASIVE LIQUID INCLUDING ABRASIVE GRAINS, THE ABRASIVE LIQUID INCLUDES COLLOIDAL SILICA ABRASIVE GRAINS AS THE ABRASIVE GRAINS AND FURTHER INCLUDES AN ALKALI SO THAT A PH VALUE OF THE ABRASIVE LIQUID IS ADJUSTED TO BE GREATER THAN 10.2 AND NOT GREATER THAN 12.
MYPI20023627A 2001-09-28 2002-09-27 Method of producing a glass substrate for a magnetic recording medium and method of producing a magnetic recording medium MY142629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001301232 2001-09-28

Publications (1)

Publication Number Publication Date
MY142629A true MY142629A (en) 2010-12-15

Family

ID=19121677

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20023627A MY142629A (en) 2001-09-28 2002-09-27 Method of producing a glass substrate for a magnetic recording medium and method of producing a magnetic recording medium

Country Status (2)

Country Link
US (1) US20030077982A1 (en)
MY (1) MY142629A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004303280A (en) * 2003-03-28 2004-10-28 Hoya Corp Method for manufacturing glass substrate for information recording medium
JP4836731B2 (en) * 2006-07-18 2011-12-14 旭硝子株式会社 Manufacturing method of glass substrate for magnetic disk
JP5060755B2 (en) * 2006-09-29 2012-10-31 Ｓｕｍｃｏ Ｔｅｃｈｘｉｖ株式会社 Semiconductor wafer rough polishing method and semiconductor wafer polishing apparatus
JP2009035461A (en) * 2007-08-03 2009-02-19 Asahi Glass Co Ltd Manufacturing method of glass substrate for magnetic disk
KR101564922B1 (en) * 2008-05-09 2015-11-03 삼성디스플레이 주식회사 Method of treating soda-lime glass substrate and methode of manufacturing display substrate using the same
JP5631604B2 (en) * 2009-02-19 2014-11-26 ダブリュディ・メディア・シンガポール・プライベートリミテッド Manufacturing method of magnetic disk
US8206789B2 (en) 2009-11-03 2012-06-26 Wd Media, Inc. Glass substrates and methods of annealing the same
US8316668B1 (en) 2010-09-23 2012-11-27 Wd Media, Inc. Composite magnetic recording medium
US8834962B2 (en) 2011-06-03 2014-09-16 WD Media, LLC Methods for improving the strength of glass substrates
US8893527B1 (en) 2011-07-21 2014-11-25 WD Media, LLC Single surface annealing of glass disks

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549374A (en) * 1982-08-12 1985-10-29 International Business Machines Corporation Method for polishing semiconductor wafers with montmorillonite slurry
US5078801A (en) * 1990-08-14 1992-01-07 Intel Corporation Post-polish cleaning of oxidized substrates by reverse colloidation
GB2334205B (en) * 1998-02-12 2001-11-28 Shinetsu Handotai Kk Polishing method for semiconductor wafer and polishing pad used therein
JP2972830B1 (en) * 1998-08-31 1999-11-08 株式会社三井金属プレシジョン Method of manufacturing glass substrate for magnetic recording medium
JP3701126B2 (en) * 1998-09-01 2005-09-28 株式会社荏原製作所 Substrate cleaning method and polishing apparatus
US6322425B1 (en) * 1999-07-30 2001-11-27 Corning Incorporated Colloidal polishing of fused silica
US6726534B1 (en) * 2001-03-01 2004-04-27 Cabot Microelectronics Corporation Preequilibrium polishing method and system

Also Published As

Publication number Publication date
US20030077982A1 (en) 2003-04-24

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