TW494397B - Method for making a glass substrate for magnetic recording media - Google Patents
Method for making a glass substrate for magnetic recording media Download PDFInfo
- Publication number
- TW494397B TW494397B TW089107721A TW89107721A TW494397B TW 494397 B TW494397 B TW 494397B TW 089107721 A TW089107721 A TW 089107721A TW 89107721 A TW89107721 A TW 89107721A TW 494397 B TW494397 B TW 494397B
- Authority
- TW
- Taiwan
- Prior art keywords
- glass substrate
- polishing
- patent application
- weight
- magnetic recording
- Prior art date
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 91
- 239000011521 glass Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005498 polishing Methods 0.000 claims abstract description 79
- 239000004744 fabric Substances 0.000 claims abstract description 35
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 20
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003082 abrasive agent Substances 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 16
- 239000000654 additive Substances 0.000 claims description 11
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 8
- 239000000194 fatty acid Substances 0.000 claims description 8
- 229930195729 fatty acid Natural products 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000006104 solid solution Substances 0.000 claims description 8
- 230000002079 cooperative effect Effects 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 6
- 229930013930 alkaloid Natural products 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- -1 fatty acid alkaloid Chemical class 0.000 claims description 4
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 4
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 230000003746 surface roughness Effects 0.000 abstract description 34
- 238000007517 polishing process Methods 0.000 abstract description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000005345 chemically strengthened glass Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 235000014593 oils and fats Nutrition 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000004264 Petrolatum Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229940066842 petrolatum Drugs 0.000 description 2
- 235000019271 petrolatum Nutrition 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- DBGSRZSKGVSXRK-UHFFFAOYSA-N 1-[2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]acetyl]-3,6-dihydro-2H-pyridine-4-carboxylic acid Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CCC(=CC1)C(=O)O DBGSRZSKGVSXRK-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910018104 Ni-P Inorganic materials 0.000 description 1
- 229910018536 Ni—P Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000003426 chemical strengthening reaction Methods 0.000 description 1
- 230000001609 comparable effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000006058 strengthened glass Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
- 229940075624 ytterbium oxide Drugs 0.000 description 1
Landscapes
- Surface Treatment Of Glass (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33588998A JP3531906B2 (ja) | 1998-11-26 | 1998-11-26 | 磁気記録媒体用結晶化ガラス基板の製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW494397B true TW494397B (en) | 2002-07-11 |
Family
ID=18293516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW089107721A TW494397B (en) | 1998-11-26 | 2000-04-25 | Method for making a glass substrate for magnetic recording media |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3531906B2 (ja) |
| TW (1) | TW494397B (ja) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175401C (zh) * | 2000-04-28 | 2004-11-10 | 三井金属矿业株式会社 | 磁记录介质用玻璃基板的制造方法 |
| JP4562274B2 (ja) * | 2000-11-09 | 2010-10-13 | Ｈｏｙａ株式会社 | 情報記録媒体用ガラス基板の製造方法及び情報記録媒体の製造方法 |
| JP4885352B2 (ja) * | 2000-12-12 | 2012-02-29 | 昭和電工株式会社 | 研磨材スラリー及び研磨微粉 |
| US7037352B2 (en) | 2000-12-12 | 2006-05-02 | Showa Denko Kabushiki Kaisha | Polishing particle and method for producing polishing particle |
| TWI292780B (ja) * | 2000-12-12 | 2008-01-21 | Showa Denko Kk | |
| JP2006066851A (ja) * | 2004-08-30 | 2006-03-09 | Matsumura Sekiyu Kenkyusho:Kk | 化学的機械研磨用組成物 |
| JP4785406B2 (ja) | 2004-08-30 | 2011-10-05 | 昭和電工株式会社 | 研磨スラリー、情報記録媒体用ガラス基板の製造方法、及び情報記録媒体の製造方法 |
| CN101827686B (zh) | 2008-07-03 | 2013-07-17 | 旭硝子株式会社 | 研磨玻璃衬底的方法、制造玻璃衬底的方法和制造磁盘用玻璃衬底的方法 |
-
1998
- 1998-11-26 JP JP33588998A patent/JP3531906B2/ja not_active Expired - Fee Related
-
2000
- 2000-04-25 TW TW089107721A patent/TW494397B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP3531906B2 (ja) | 2004-05-31 |
| JP2000163740A (ja) | 2000-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GD4A | Issue of patent certificate for granted invention patent | ||
| MM4A | Annulment or lapse of patent due to non-payment of fees |