WO2007116813A1 - 垂直磁気記録ディスクの製造方法及び垂直磁気記録ディスク - Google Patents
垂直磁気記録ディスクの製造方法及び垂直磁気記録ディスク Download PDFInfo
- Publication number
- WO2007116813A1 WO2007116813A1 PCT/JP2007/056997 JP2007056997W WO2007116813A1 WO 2007116813 A1 WO2007116813 A1 WO 2007116813A1 JP 2007056997 W JP2007056997 W JP 2007056997W WO 2007116813 A1 WO2007116813 A1 WO 2007116813A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- magnetic recording
- energy control
- perpendicular magnetic
- magnetic
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 246
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 73
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 62
- 239000000758 substrate Substances 0.000 claims abstract description 41
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 29
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 28
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052743 krypton Inorganic materials 0.000 claims abstract description 18
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052786 argon Inorganic materials 0.000 claims abstract description 11
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 11
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 9
- 229910000531 Co alloy Inorganic materials 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 281
- 239000013078 crystal Substances 0.000 claims description 36
- 229910052710 silicon Inorganic materials 0.000 claims description 30
- 125000006850 spacer group Chemical group 0.000 claims description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000010703 silicon Substances 0.000 claims description 15
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- 239000010941 cobalt Substances 0.000 claims description 8
- 239000002356 single layer Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 abstract description 18
- 238000003475 lamination Methods 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 description 19
- 229910045601 alloy Inorganic materials 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 15
- 239000011521 glass Substances 0.000 description 14
- 239000011241 protective layer Substances 0.000 description 14
- 239000000696 magnetic material Substances 0.000 description 13
- 229910018979 CoPt Inorganic materials 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 230000003746 surface roughness Effects 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 9
- 230000001050 lubricating effect Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000006249 magnetic particle Substances 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- 238000001755 magnetron sputter deposition Methods 0.000 description 4
- 239000010702 perfluoropolyether Substances 0.000 description 4
- 238000005011 time of flight secondary ion mass spectroscopy Methods 0.000 description 4
- 238000002042 time-of-flight secondary ion mass spectrometry Methods 0.000 description 4
- 239000005354 aluminosilicate glass Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229910019222 CoCrPt Inorganic materials 0.000 description 2
- 229910002546 FeCo Inorganic materials 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000005345 chemically strengthened glass Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 229910018936 CoPd Inorganic materials 0.000 description 1
- 229910002555 FeNi Inorganic materials 0.000 description 1
- 229910005335 FePt Inorganic materials 0.000 description 1
- 229910005435 FeTaN Inorganic materials 0.000 description 1
- 241000849798 Nita Species 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910001362 Ta alloys Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910010069 TiCo Inorganic materials 0.000 description 1
- 229910010169 TiCr Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000003426 chemical strengthening reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- CKHJYUSOUQDYEN-UHFFFAOYSA-N gallium(3+) Chemical compound [Ga+3] CKHJYUSOUQDYEN-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
- G11B5/676—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer
- G11B5/678—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer having three or more magnetic layers
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper layer
- G11B5/7361—Two or more non-magnetic layers
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper layer
- G11B5/7364—Non-magnetic single underlayer comprising chromium
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73921—Glass or ceramic substrates
-
- 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
- G11B5/851—Coating a support with a magnetic layer by sputtering
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/295,496 US9142238B2 (en) | 2006-03-30 | 2007-03-29 | Vertical magnetic recording disk manufacturing method and vertical magnetic recording disk |
JP2008509815A JPWO2007116813A1 (ja) | 2006-03-30 | 2007-03-29 | 垂直磁気記録ディスクの製造方法及び垂直磁気記録ディスク |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-093033 | 2006-03-30 | ||
JP2006093033 | 2006-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007116813A1 true WO2007116813A1 (ja) | 2007-10-18 |
Family
ID=38581107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/056997 WO2007116813A1 (ja) | 2006-03-30 | 2007-03-29 | 垂直磁気記録ディスクの製造方法及び垂直磁気記録ディスク |
Country Status (4)
Country | Link |
---|---|
US (1) | US9142238B2 (ja) |
JP (2) | JPWO2007116813A1 (ja) |
SG (1) | SG170808A1 (ja) |
WO (1) | WO2007116813A1 (ja) |
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JP2009238299A (ja) | 2008-03-26 | 2009-10-15 | Hoya Corp | 垂直磁気記録媒体および垂直磁気記録媒体の製造方法 |
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2007
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- 2007-03-29 US US12/295,496 patent/US9142238B2/en not_active Expired - Fee Related
- 2007-03-29 WO PCT/JP2007/056997 patent/WO2007116813A1/ja active Application Filing
- 2007-03-29 JP JP2008509815A patent/JPWO2007116813A1/ja active Pending
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2010
- 2010-05-26 JP JP2010120151A patent/JP2010211921A/ja active Pending
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Also Published As
Publication number | Publication date |
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JPWO2007116813A1 (ja) | 2009-08-20 |
US20090202866A1 (en) | 2009-08-13 |
US9142238B2 (en) | 2015-09-22 |
SG170808A1 (en) | 2011-05-30 |
JP2010211921A (ja) | 2010-09-24 |
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