WO2009019993A1 - 磁気ディスク用ガラス基板の製造方法 - Google Patents
磁気ディスク用ガラス基板の製造方法 Download PDFInfo
- Publication number
- WO2009019993A1 WO2009019993A1 PCT/JP2008/063349 JP2008063349W WO2009019993A1 WO 2009019993 A1 WO2009019993 A1 WO 2009019993A1 JP 2008063349 W JP2008063349 W JP 2008063349W WO 2009019993 A1 WO2009019993 A1 WO 2009019993A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass substrate
- magnetic disc
- polishing
- manufacturing glass
- lapping
- Prior art date
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
-
- 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
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)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Surface Treatment Of Glass (AREA)
- Magnetic Record Carriers (AREA)
Abstract
効果的にクラックを除去することができる磁気ディスク用ガラス基板の製造方法を提供する。 磁気ディスク用ガラス基板の製造方法において、主表面と、主表面に対向する裏面と、主表面から裏面に貫通する貫通孔を構成する内側面と、内側面と対向する外側面とを有する円形のガラス基板を準備する準備工程1と、ガラス基板の内側面及び外側面を研磨する前研磨工程2Aと、研磨されたガラス基板をラッピングするラッピング工程3と、ラッピングされたガラス基板の内側面及び外側面を研磨する後研磨工程2Bと、を設けた。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008800023858A CN101583577B (zh) | 2007-08-03 | 2008-07-25 | 制造磁盘用玻璃衬底的方法 |
US12/504,401 US20090304976A1 (en) | 2007-08-02 | 2009-07-16 | Method for manufacturing glass substrate for magnetic disc |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-203158 | 2007-08-02 | ||
JP2007203158A JP2009035461A (ja) | 2007-08-03 | 2007-08-03 | 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 |
---|---|---|---|
US12/504,401 Continuation US20090304976A1 (en) | 2007-08-02 | 2009-07-16 | Method for manufacturing glass substrate for magnetic disc |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009019993A1 true WO2009019993A1 (ja) | 2009-02-12 |
Family
ID=40341228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/063349 WO2009019993A1 (ja) | 2007-08-02 | 2008-07-25 | 磁気ディスク用ガラス基板の製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090304976A1 (ja) |
JP (1) | JP2009035461A (ja) |
CN (1) | CN101583577B (ja) |
WO (1) | WO2009019993A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5787702B2 (ja) * | 2011-09-30 | 2015-09-30 | Hoya株式会社 | 磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法及びガラス基板 |
KR20130092713A (ko) * | 2012-02-13 | 2013-08-21 | (주)미코씨엔씨 | 터치스크린용 강화 유리 기판의 가공방법 |
CN103513799A (zh) * | 2012-06-15 | 2014-01-15 | 联胜(中国)科技有限公司 | 硬质基板、触控面板及硬质基板的处理方法 |
US9890074B2 (en) | 2013-02-21 | 2018-02-13 | Htc Corporation | Electronic device, glass cover and method of manufacturing glass cover |
JP6244962B2 (ja) * | 2014-02-17 | 2017-12-13 | 株式会社Sumco | 半導体ウェーハの製造方法 |
CN104616672B (zh) * | 2015-01-22 | 2017-08-11 | 上海光和光学制造股份有限公司 | 一种玻璃母盘基片的制造工艺 |
JP6020753B1 (ja) * | 2015-12-28 | 2016-11-02 | 旭硝子株式会社 | 磁気記録媒体用ガラス基板、磁気記録媒体 |
JP6913295B2 (ja) * | 2016-12-27 | 2021-08-04 | 日本電気硝子株式会社 | ガラス板、及びガラス板の製造方法 |
JP6695318B2 (ja) * | 2017-12-27 | 2020-05-20 | Hoya株式会社 | 円盤状ガラス基板の製造方法、薄板ガラス基板の製造方法、導光板の製造方法及び円盤状ガラス基板 |
JP7003178B2 (ja) * | 2020-04-21 | 2022-01-20 | Hoya株式会社 | 円盤状ガラス基板の製造方法、薄板ガラス基板の製造方法、導光板の製造方法及び円盤状ガラス基板 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10154321A (ja) * | 1996-09-30 | 1998-06-09 | Hoya Corp | 磁気記録媒体用ガラス基板、磁気記録媒体、及びそれらの製造方法 |
JP2007118174A (ja) * | 2005-09-29 | 2007-05-17 | Hoya Corp | 研磨ブラシ、研磨部材、研磨方法、研磨装置及び磁気ディスク用ガラス基板の製造方法、並びに磁気ディスクの製造方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002123931A (ja) * | 2000-10-13 | 2002-04-26 | Nippon Sheet Glass Co Ltd | 情報記録媒体用ガラス基板の研磨方法、及び該方法により研磨された情報記録媒体用ガラス基板 |
WO2002076675A1 (fr) * | 2001-03-27 | 2002-10-03 | Nippon Sheet Glass Co., Ltd. | Substrat pour support d'enregistrement d'informations et procede de production dudit substrat, support d'enregistrement d'informations et feuille de verre ebauche |
US20030134734A1 (en) * | 2001-08-08 | 2003-07-17 | Shiro Nishimoto | Press molding method for glass and manufacturing method for glass substrate using this method |
US20030077982A1 (en) * | 2001-09-28 | 2003-04-24 | Hoya Corporation | Method of producing a glass substrate for a magnetic recording medium and method of producing a magnetic recording medium |
JP4234991B2 (ja) * | 2002-12-26 | 2009-03-04 | Hoya株式会社 | 情報記録媒体用ガラス基板の製造方法及びその製造方法によって製造される情報記録媒体用ガラス基板 |
WO2004058450A1 (ja) * | 2002-12-26 | 2004-07-15 | Hoya Corporation | 情報記録媒体用ガラス基板の製造方法と研磨装置及び情報記録媒体用ガラス基板 |
JP2004288228A (ja) * | 2003-01-31 | 2004-10-14 | Hoya Corp | 情報記録媒体用基板、情報記録媒体およびその製造方法 |
JP4668528B2 (ja) * | 2003-09-05 | 2011-04-13 | 株式会社フジミインコーポレーテッド | 研磨用組成物 |
US20060128154A1 (en) * | 2004-12-15 | 2006-06-15 | Asahi Glass Company, Limited | Glass substrate for magnetic disk and its production process |
JP4557222B2 (ja) * | 2005-03-24 | 2010-10-06 | Hoya株式会社 | 磁気ディスク用ガラス基板の製造方法及び磁気ディスクの製造方法 |
JP2006294099A (ja) * | 2005-04-07 | 2006-10-26 | Asahi Glass Co Ltd | 磁気記録媒体用ガラス基板の周面研磨装置及び製造方法 |
US20070003796A1 (en) * | 2005-06-03 | 2007-01-04 | Hoya Corporation | Method for manufacturing magnetic disk glass substrate and method for manufacturing magnetic disk |
US8062096B2 (en) * | 2005-06-30 | 2011-11-22 | Cabot Microelectronics Corporation | Use of CMP for aluminum mirror and solar cell fabrication |
JP2007102843A (ja) * | 2005-09-30 | 2007-04-19 | Hoya Corp | 磁気記録媒体用ガラス基板および磁気ディスク |
SG136886A1 (en) * | 2006-04-28 | 2007-11-29 | Asahi Glass Co Ltd | Method for producing glass substrate for magnetic disk, and magnetic disk |
JP2008024528A (ja) * | 2006-07-18 | 2008-02-07 | Asahi Glass Co Ltd | 磁気ディスク用ガラス基板の製造方法 |
-
2007
- 2007-08-03 JP JP2007203158A patent/JP2009035461A/ja not_active Withdrawn
-
2008
- 2008-07-25 WO PCT/JP2008/063349 patent/WO2009019993A1/ja active Application Filing
- 2008-07-25 CN CN2008800023858A patent/CN101583577B/zh not_active Expired - Fee Related
-
2009
- 2009-07-16 US US12/504,401 patent/US20090304976A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10154321A (ja) * | 1996-09-30 | 1998-06-09 | Hoya Corp | 磁気記録媒体用ガラス基板、磁気記録媒体、及びそれらの製造方法 |
JP2007118174A (ja) * | 2005-09-29 | 2007-05-17 | Hoya Corp | 研磨ブラシ、研磨部材、研磨方法、研磨装置及び磁気ディスク用ガラス基板の製造方法、並びに磁気ディスクの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2009035461A (ja) | 2009-02-19 |
CN101583577A (zh) | 2009-11-18 |
US20090304976A1 (en) | 2009-12-10 |
CN101583577B (zh) | 2010-12-22 |
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