DE3519070C2 - - Google Patents
Info
- Publication number
- DE3519070C2 DE3519070C2 DE3519070A DE3519070A DE3519070C2 DE 3519070 C2 DE3519070 C2 DE 3519070C2 DE 3519070 A DE3519070 A DE 3519070A DE 3519070 A DE3519070 A DE 3519070A DE 3519070 C2 DE3519070 C2 DE 3519070C2
- Authority
- DE
- Germany
- Prior art keywords
- layer
- recording medium
- guide track
- magnetic
- magneto
- 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
Links
- 239000010410 layer Substances 0.000 claims description 254
- 239000000758 substrate Substances 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 52
- 239000011241 protective layer Substances 0.000 claims description 41
- 230000001681 protective effect Effects 0.000 claims description 34
- 239000011230 binding agent Substances 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000002845 discoloration Methods 0.000 claims description 3
- 229910002616 GeOx Inorganic materials 0.000 claims description 2
- 229910005898 GeSn Inorganic materials 0.000 claims description 2
- 229910015711 MoOx Inorganic materials 0.000 claims description 2
- 229910018316 SbOx Inorganic materials 0.000 claims description 2
- 229910018219 SeTe Inorganic materials 0.000 claims description 2
- 229910006854 SnOx Inorganic materials 0.000 claims description 2
- FESBVLZDDCQLFY-UHFFFAOYSA-N sete Chemical compound [Te]=[Se] FESBVLZDDCQLFY-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 description 33
- 238000004544 sputter deposition Methods 0.000 description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 239000000696 magnetic material Substances 0.000 description 12
- 230000008929 regeneration Effects 0.000 description 8
- 238000011069 regeneration method Methods 0.000 description 8
- 230000003667 anti-reflective effect Effects 0.000 description 7
- 229910052681 coesite Inorganic materials 0.000 description 6
- 229910052906 cristobalite Inorganic materials 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 235000012239 silicon dioxide Nutrition 0.000 description 6
- 229910052682 stishovite Inorganic materials 0.000 description 6
- 229910052905 tridymite Inorganic materials 0.000 description 6
- 238000000137 annealing Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000012808 vapor phase Substances 0.000 description 5
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000004528 spin coating Methods 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- -1 rare earth-metal transition metal Chemical class 0.000 description 3
- 238000005546 reactive sputtering Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 238000001947 vapour-phase growth Methods 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- 229910017000 As2Se3 Inorganic materials 0.000 description 1
- 229910002515 CoAl Inorganic materials 0.000 description 1
- 229910002521 CoMn Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000001007 phthalocyanine dye Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001552 radio frequency sputter deposition Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
- G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59107497A JPS60253038A (ja) | 1984-05-29 | 1984-05-29 | 光磁気デイスク |
| JP11629184A JPS60261050A (ja) | 1984-06-06 | 1984-06-06 | 光磁気記録媒体 |
| JP60004490A JPH07122940B2 (ja) | 1985-01-14 | 1985-01-14 | 光磁気記録媒体の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3519070A1 DE3519070A1 (de) | 1985-12-05 |
| DE3519070C2 true DE3519070C2 (cg-RX-API-DMAC7.html) | 1989-08-31 |
Family
ID=27276306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853519070 Granted DE3519070A1 (de) | 1984-05-29 | 1985-05-28 | Magneto-optisches aufzeichnungsmedium |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3519070A1 (cg-RX-API-DMAC7.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1303739C (en) * | 1987-06-02 | 1992-06-16 | Fred W. Spong | Magneto-optic records |
| FR2655463B1 (fr) * | 1989-12-06 | 1995-06-30 | Commissariat Energie Atomique | Procede de preparation d'une memoire magnetooptique. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414650A (en) * | 1980-06-23 | 1983-11-08 | Sharp Kabushiki Kaisha | Magneto-optic memory element |
| CA1185013A (en) * | 1981-01-14 | 1985-04-02 | Kenji Ohta | Magneto-optic memory medium |
| JPS5961011A (ja) * | 1982-09-30 | 1984-04-07 | Ricoh Co Ltd | 光磁気記録媒体 |
-
1985
- 1985-05-28 DE DE19853519070 patent/DE3519070A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3519070A1 (de) | 1985-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69313926T2 (de) | Optisches Aufzeichungsmedium und Verfahren zur Herstellung desselben | |
| DE69219051T2 (de) | Optisches aufzeichnungsmedium und verfahren zu dessen herstellung | |
| DE3124573C2 (de) | Magneto-optisches Speichermedium | |
| DE3534571C2 (cg-RX-API-DMAC7.html) | ||
| DE68914806T2 (de) | Optischer Aufzeichnungsträger. | |
| DE2439848A1 (de) | Aufzeichnungsmaterial fuer laserstrahlen und aufzeichnungsverfahren | |
| DE60317958T2 (de) | Optisches Informationsaufzeichnungsmedium und Verfahren zur seiner Herstellung | |
| DE3883174T2 (de) | Optisches Informationsaufzeichnungsmedium. | |
| DE3204076A1 (de) | Speichermedium | |
| DE69816073T2 (de) | Verfahren zur herstellung eines optischen informationsaufzeichnungsmediums, und durch das verfahren hergestelltes optisches informationsaufzeichnungsmedium | |
| DE3883589T2 (de) | Verfahren zur Herstellung eines optischen Aufzeichnungsmediums. | |
| DE4335799A1 (de) | Optisches Aufzeichnungsverfahren und optisches Aufzeichnungsmedium | |
| DE68928712T2 (de) | Magneto-optisches Speichermedium | |
| DE60015829T2 (de) | Optischer Aufzeichnungsträger und Verfahren zu dessen Initialisierung | |
| DE3118058A1 (de) | Aufzeichnungstraeger und verfahren zum schreiben einer informationsspur sowie zum loeschen einer in dem traeger gespeicherten information | |
| DE69322365T2 (de) | Optisches Aufzeichnungsmedium | |
| DE19948346A1 (de) | Optische Phase Change-Platte | |
| DE69318634T2 (de) | Optische Platte mit hoher Speicherdichte | |
| DE60013688T2 (de) | Optisches Informationsaufzeichnungsmedium, Herstellungsverfahren dafür, und Verfahren und Vorrichtung zur Informationsaufzeichnung /-wiedergabe darauf | |
| DE69328657T2 (de) | Magneto-optisches Aufzeichnungsverfahren | |
| DE3142532C2 (cg-RX-API-DMAC7.html) | ||
| DE60020659T2 (de) | Optisches Phasenwechselaufzeichnungsmedium mit Kristallkeimbildungsschicht | |
| DE69204780T2 (de) | Optisches aufzeichnungsmedium. | |
| DE69007548T2 (de) | Anlage für optische Speicherung. | |
| DE69229907T2 (de) | Optisches Datenaufzeichnungsmedium und Verfahren zur Aufzeichnung auf, Löschen aus und Wiedergabe von demselben |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8125 | Change of the main classification |
Ipc: G11B 13/04 |
|
| 8125 | Change of the main classification |
Ipc: G11C 13/06 |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |