JP4434173B2 - 磁気ディスク用ガラス基板の製造方法および磁気ディスクの製造方法 - Google Patents
磁気ディスク用ガラス基板の製造方法および磁気ディスクの製造方法 Download PDFInfo
- Publication number
- JP4434173B2 JP4434173B2 JP2006129483A JP2006129483A JP4434173B2 JP 4434173 B2 JP4434173 B2 JP 4434173B2 JP 2006129483 A JP2006129483 A JP 2006129483A JP 2006129483 A JP2006129483 A JP 2006129483A JP 4434173 B2 JP4434173 B2 JP 4434173B2
- Authority
- JP
- Japan
- Prior art keywords
- glass substrate
- magnetic disk
- ion
- manufacturing
- magnetic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- 239000000758 substrate Substances 0.000 title claims description 201
- 239000011521 glass Substances 0.000 title claims description 197
- 230000005291 magnetic effect Effects 0.000 title claims description 116
- 238000000034 method Methods 0.000 title claims description 59
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 150000002500 ions Chemical class 0.000 claims description 71
- 239000003513 alkali Substances 0.000 claims description 47
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 40
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 38
- 239000003795 chemical substances by application Substances 0.000 claims description 31
- 238000003426 chemical strengthening reaction Methods 0.000 claims description 29
- 150000003839 salts Chemical class 0.000 claims description 22
- 235000010333 potassium nitrate Nutrition 0.000 claims description 20
- 239000004323 potassium nitrate Substances 0.000 claims description 20
- 235000010344 sodium nitrate Nutrition 0.000 claims description 19
- 239000004317 sodium nitrate Substances 0.000 claims description 19
- 239000011734 sodium Substances 0.000 claims description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 7
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000011282 treatment Methods 0.000 description 38
- 239000010410 layer Substances 0.000 description 36
- 238000005452 bending Methods 0.000 description 30
- 238000012545 processing Methods 0.000 description 26
- 230000008569 process Effects 0.000 description 22
- 238000005342 ion exchange Methods 0.000 description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 11
- 229910001416 lithium ion Inorganic materials 0.000 description 11
- 238000003672 processing method Methods 0.000 description 11
- 239000005354 aluminosilicate glass Substances 0.000 description 9
- 229910001415 sodium ion Inorganic materials 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 229910001414 potassium ion Inorganic materials 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 3
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010702 perfluoropolyether Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 150000001721 carbon Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910018979 CoPt Inorganic materials 0.000 description 1
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010952 cobalt-chrome Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
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- Surface Treatment Of Glass (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006129483A JP4434173B2 (ja) | 2006-05-08 | 2006-05-08 | 磁気ディスク用ガラス基板の製造方法および磁気ディスクの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006129483A JP4434173B2 (ja) | 2006-05-08 | 2006-05-08 | 磁気ディスク用ガラス基板の製造方法および磁気ディスクの製造方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003043212A Division JP3861063B2 (ja) | 2003-02-20 | 2003-02-20 | 磁気ディスク用ガラス基板の処理方法および製造方法、並びに磁気ディスク |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006221810A JP2006221810A (ja) | 2006-08-24 |
| JP2006221810A5 JP2006221810A5 (enExample) | 2007-03-15 |
| JP4434173B2 true JP4434173B2 (ja) | 2010-03-17 |
Family
ID=36983998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006129483A Expired - Fee Related JP4434173B2 (ja) | 2006-05-08 | 2006-05-08 | 磁気ディスク用ガラス基板の製造方法および磁気ディスクの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4434173B2 (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008140497A (ja) * | 2006-12-04 | 2008-06-19 | Konica Minolta Opto Inc | 記録媒体用ガラス基板の製造方法、記録媒体用ガラス基板及び記録媒体 |
| CN102137822B (zh) * | 2008-07-29 | 2015-12-09 | 康宁股份有限公司 | 用于化学强化玻璃的双阶段离子交换 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11328601A (ja) * | 1998-05-12 | 1999-11-30 | Asahi Techno Glass Corp | 記録媒体用ガラス基板、ガラス基板を用いた記録媒体および記録媒体用ガラス基板の製造方法 |
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2006
- 2006-05-08 JP JP2006129483A patent/JP4434173B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006221810A (ja) | 2006-08-24 |
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