CN1157724C - Process for preparing multi-layer optical information record medium - Google Patents
Process for preparing multi-layer optical information record medium Download PDFInfo
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- CN1157724C CN1157724C CNB001302779A CN00130277A CN1157724C CN 1157724 C CN1157724 C CN 1157724C CN B001302779 A CNB001302779 A CN B001302779A CN 00130277 A CN00130277 A CN 00130277A CN 1157724 C CN1157724 C CN 1157724C
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- reflection horizon
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- optical information
- information record
- masterplate
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Abstract
The present invention relates to a method for manufacturing optical information record carriers. In the method, a reflection layer is firstly plated onto a stencil plate with a data pattern, light-hardening sticky macromolecular resin is then coated on a base plate whose surface has another data pattern and is coated with a half-reflection layer, the base plate is attached to the stencil plate on which a reflection layer is plated, the stencil plate is stripped after the resin is irradiated by ultraviolet light and hardened, two reflection layers with data patterns are formed on the base plate, and a multilayered optical information record carrier is finally obtained after two of the base plates are bound with macromolecular resin adhesives.
Description
Technical field
The present invention relates to a kind of manufacture method of optical information record medium, be meant a kind of optical information carrier especially, the manufacture method of for example two-sided double-layer CD sheet with multilayer recorded information reflection horizon.
Background technology
Discs is on discoid thin plastic plate, comes the Storage Media of recording information signal with groove row (recess and protrusionportions/pits) form.Because optical disc data density height, and reading of data is to adopt contactless method, is difficult for causing the damage of data, and it is longer to preserve the time limit, so CD is used in widely at present and deposits sound, image and large software.Traditional discs (CD series) is single-surface single-layer, and it can be about 650MB by the use capacity CD discs of 12 centimeters diameters of a slice.The nearly digital audio-video CD-ROM sheet (DVD-ROM) that begins to release has the specification of single-surface double-layer, single-surface single-layer, two-sided individual layer and two-sided bilayer.With the DVD-ROM discs of 12 centimeters diameters of a slice, the basic tankage used of single-surface single-layer discs is 4.7GB (DVD-5), and two-sided bilayer is 17GB (DVD-18).The DVD-18 of present two-sided bilayer (17GB) discs though there is specification not have commercial prod, mainly is that method for making has its insoluble problem to exist.
Two-sided DVD-dual layer-ROM discs has in the making, and substrate 10 gummeds that normally two thick single faces of 0.6mm had the double record data form, and shown in Fig. 4 a and Fig. 4 b.Wherein a substrate 10 has one first reflection horizon 11 and one second reflection horizon 12 on surface thereof, then is a transparent macromolecule resin layer 13 between this first reflection horizon 11 and this second reflection horizon 12.This first reflection horizon 11 and this second reflection horizon 12 have the reflecting surface of the record data pattern (pitpattern) of concavo-convex (recess and protrusionportions).And this first reflection horizon 11, for example can be the semi-reflective layer (partial reflective) of gold (Au), silicon (Si) material, this second reflection horizon 12 then can be the total reflection layer of aluminium (Al) material, so can read two-layer record data with optical pickup device from another surface of this substrate.With viscose 14 combinations, wherein this viscose 14 is to be placed between second reflection horizon 12 of this two substrates 10, so promptly finish the discs of a two-sided bilayer with two aforementioned substrates 10 with double record data.
For making two-sided double-deck digital versatile disc-ROM discs, the technology that the record data of formation multilayer can use on a substrate mainly contains: jet forming method (injection molding), light macromolecule method (Photo Polymer at present; 2P) and revolve plating and peel off method (Spin-on AndPeel; SOAP).
Jet forming method is with plastics with High Temperature High Pressure, for example, polycarbonate (polycarbonate), be pressed in the mould (cavity), the male model of this mould (all-moving surface) is respectively equipped with the masterplate (stamper) of tool data pattern (pit pattern) with master mold (stationary plane), so form two-sided film with data pattern.After forming the reflection horizon on this film then, paste, form double-deck record data on this substrate in being formed on to an optic disc base board.This practice is because of needs high temperature and high pressure, so serious to the abrasion of template.And the film thickness that this method of radiation can be made has its lower limit, can't make thin specification.The contraction inequality of thermal stress or plastic cement often causes the torsional deformation of manufactured goods in addition, and reduces the qualification rate of product.
The 2P method is the easily deformable macromolecule resin of coating one deck on a masterplate, utilize high pressure that this macromolecule resin is pressed to this template then, use the data pattern transfer printing on the template on this macromolecule resin, make its sclerosis and form a film with data pattern with UV-irradiation again.The substrate that then this film is had data pattern with a surface and be coated with semi-reflective layer binds mutually, makes surface that this film has a data pattern outwardly, and plates a total reflection layer, so just formed the discs of single-surface double-layer.If with relatively the sticking together of two these single-side double-layer light disk sheets, can form the discs of a two-sided bilayer, for example DVD-18 again with this fully reflecting surface.The shortcoming of this kind method is, needs the mode of high pressure to obtain transfer printing than the good data pattern, and causes the abrasion of masterplate serious.At processing procedure, easily produce the phenomenon of foam (Bubble) or wrinkle (Wrinkle) in addition, reduce the qualification rate of product this film and the bonding of this substrate.
Revolving plating, to peel off method (SOAP) then be that a high-molecular resin solution is dropped on the masterplate in the rotation, after the solvent evaporates of mode with this high-molecular resin solution with rotary coating, can form a hardening film with data pattern.The substrate that then this film is had data pattern with a surface and be coated with semi-reflective layer binds mutually.The surface with data pattern that makes this film and plates a total reflection layer outwardly, so just formed the discs of a single-surface double-layer.If with the sticking together relatively of the discs of two these single-surface double-layers, can form the discs of a two-sided bilayer again with this fully reflecting surface.Yet the method still needs the processing procedure with this film and the bonding of this substrate, easily produces the phenomenon of foam or wrinkle, reduces the qualification rate of product.
In order to solve the serious and low problem of product percent of pass of masterplate abrasion that above-mentioned manufacture causes, having to provide a kind of new manufacture method.
Summary of the invention
The objective of the invention is to propose a kind of by directly a reflection horizon being formed on the template, relend the substrate that has data pattern with one and be coated with semi-reflective layer by a light-hardening resin and this template and the manufacture method of the optical information record medium that step forms such as bind mutually, it can reduce the wearing and tearing of template, and the qualification rate of raising product, thereby solved the problem at prior art place.
The technical solution adopted in the present invention is that it includes the following step:
Forming one second reflection horizon has on the masterplate of one second data pattern (pit pattern) one;
Coating one photo-hardening (radiation setting) resin bed on this second reflection horizon on this masterplate;
One substrate is provided, and surface thereof has one first data pattern, on this surface and be coated with one first reflection horizon;
With this surface of this substrate this masterplate of fitting, this resin bed is then between this substrate and this masterplate;
Make it sclerosis with this resin bed of light beam irradiates; And
Peeling off this masterplate makes it separate with this second reflection horizon;
This substrate and another are had the reflection horizon substrate,, glue together each other in the mode of reflection horizon to the reflection horizon.
Adoptable another technical scheme of the present invention is that it includes the following step:
Forming one second reflection horizon has on the masterplate of one second data pattern (pit pattern) one;
One substrate is provided, and surface thereof has one first data pattern, on this surface and be coated with one first reflection horizon;
Coating one photo-hardening (radiation sitting) resin bed on this first reflection horizon of this substrate;
With fit this second reflection horizon of this masterplate, this first reflection horizon of this substrate, this resin bed is then between this first reflection horizon and this second reflection horizon;
Make it sclerosis with this resin bed of light beam irradiates; And
Peeling off this masterplate makes it separate with this second reflection horizon;
This substrate and another are had the reflection horizon substrate,, glue together each other in the mode of reflection horizon to the reflection horizon.
The invention has the advantages that: it can be coated with by method of spin coating at light-hardening resin, do not need high temperature and high pressure, thereby reduced wear intensity to masterplate, and avoided the problem of the torsional deformation that thermal stress or unrelieved stress cause, thus improved the qualification rate of product.
Description of drawings
Fig. 1 a-Fig. 1 f is the manufacture process sectional view of first preferred embodiment of the manufacture method of discs of the present invention.
Fig. 2 a-Fig. 2 g is the manufacture process sectional view of second preferred embodiment of the manufacture method of discs of the present invention.
Fig. 3 is for showing the sectional view of a masterplate, and elder generation is coating one release agent as thin as a wafer on template, and then plates the reflection horizon.
Fig. 4 a-Fig. 4 b, for showing two single-side double-layer light disk sheets, glue together the reflection horizon in the reflection horizon each other, forms the sectional view of a two-sided double-layer CD sheet.
Embodiment
Further specify preferred embodiment of the present invention in conjunction with above-mentioned each accompanying drawing now, shown in Fig. 1 a-Fig. 1 f, it is first preferred embodiment of the present invention.At first, as Fig. 1 a with one second reflection horizon 22, for example, the aluminium of thickness 60nm, gold, silver or silicon total reflection layer, with vapour deposition process, vapour deposition method or sputtering method, be plated in the upper surface of a template 30, this upper surface has preformed concavo-convex data pattern (pitpatter).So this second reflection horizon 22 is transfer printing the data pattern identical with masterplate 30 arranged.
Then shown in Fig. 1 b, on this second reflection horizon 22 on this template 30, be coated with (radiation setting) tackness polymer resin layer 23 (AdhesivePolymer resin) of one deck photo-hardening.And be coated with the method for this resin bed 23, for example, can use method of spin coating (Spin Coating) and with the THICKNESS CONTROL of this resin bed 23 at 40～65 μ m.
Then shown in Fig. 1 c, provide the substrate 20 of a thickness 0.6mm, have preformed data pattern on the surface thereof, and on this surface, be coated with one first reflection horizon 21, this first reflection horizon 21 for example, can be semi-reflective layers such as the gold, silver of thickness 18nm or silicon.This substrate 20 can be made by polymethylmethacrylate (PMMA) or polycarbonate (PC) ejection formation in a conventional manner.
Shown in Fig. 1 d, with the surface with data pattern of this substrate 20, this upper surface of this masterplate 30 of fitting, this resin bed 23 are then between this first reflection horizon 21 and this second reflection horizon 22 then.Make its sclerosis with ultraviolet light 24 these resin beds 23 of irradiation again.Then, this masterplate 30 is peeled off, because the adhesion between this second reflection horizon 22 and this template 30 is less than this second reflection horizon 22 and the adhesion between this resin bed 23 after hardening, so shown in Fig. 1 e, on this substrate 20, form the two- layer reflection horizon 21,22 that has data pattern, promptly obtain a single-surface double-layer (dual layer one side) discs 40.
At last, illustrate as Fig. 1 e, with two second reflection horizon 22 of aforementioned single-side double-layer light disk sheet 40 and another single-side double-layer light disk sheet 50 toward each other, and bind mutually, can obtain the discs of a two-sided bilayer (dual layer double side) with viscose 25.
Fig. 2 a～2b illustrates according to second preferred embodiment of the present invention.At first, Fig. 2 a is with one second reflection horizon 22, for example, the total reflection layer of the aluminium of thickness 80mm, gold, silver or silicon, with vapour deposition process, vapour deposition method or sputtering method, be plated in the upper surface of a template 30, this upper surface have preformed concavo-convex data pattern (pit pattern) so. this second reflection horizon 22 is that transfer printing has the data pattern identical with masterplate 30.
Then shown in Fig. 2 b, provide the substrate 20 of a thickness 0.6mm, have preformed data pattern on the surface thereof, and be coated with one first reflection horizon 21 on this surface, this first reflection horizon 21 for example, can be the semi-reflective layer of the gold of thickness 10nm or silicon etc.This substrate 20 can be made by polymethylmethacrylate (PMMA) or polycarbonate (PC) ejection formation in a conventional manner.
Then shown in Fig. 2 c, on this first reflection horizon 21 of this substrate 20, be coated with (radiation setting) tackness polymer resin layer 23 (AdhesivePolymer resin) of one deck photo-hardening.And be coated with the method for this resin bed 23, for example, can use method of spin coating (Spin Coating) and with the THICKNESS CONTROL of this resin bed 23 at 40～65 μ m.
Then, shown in Fig. 2 d, with this first reflection horizon 21 that is coated with this resin bed 23 of this substrate 20, fit toward each other with this upper surface of this masterplate 30, so, 23 of this resin beds are between this first reflection horizon 21 and this second reflection horizon 22.
Shown in Fig. 2 e, make it sclerosis with ultraviolet light 24 irradiation tree layer fat 23 again.Then, this masterplate 30 is peeled off, since the adhesion between this second reflection horizon 22 and this masterplate 30 than this second reflection horizon 22 and the adhesion between this resin bed 23 after hardening little, so shown in Fig. 2 f, form the two- layer reflection horizon 21,22 that has data pattern at this substrate 20, promptly obtain a single-surface double-layer (dual later one side) discs 40.
At last, shown in Fig. 2 g, with two second reflection horizon 22 of aforementioned single-side double-layer light disk sheet 40 and another single-side double-layer light disk sheet 50 toward each other, and bind mutually, can obtain a two-sided bilayer (dual layer double side) discs with viscose 25.
In above-mentioned two embodiment, the step of peeling off this masterplate 30 is the less characteristic of utilizing between this second reflection horizon 22 and this masterplate 30 of adhesion, and this second reflection horizon 22 is separated with this masterplate 30.Yet, in order to make when peeling off this masterplate 30, this second reflection horizon 22 and 30 easier separating of this masterplate, also can be as shown in Figure 3, plate at masterplate 30 before the step in this second reflection horizon 22, on this masterplate 30, be coated with one deck release agent 31 as thin as a wafer in advance, and then carry out aforementioned following step.
Above-described, only be the present invention's preferred embodiment wherein, be not to be used for limiting practical range of the present invention, be familiar with the technician of this skill, do not breaking away from spirit of the present invention when making suitable modification, for example, this substrate also can be other thickness, as 1.2mm, 0.5mm, 0.3mm to cooperate the requirement of other specification, and the thickness in this first reflection horizon and this second reflection horizon and material also can have other selection, for example, material can be used material or its alloys such as aluminium, silver, gold, copper, chromium or silicon.The thickness of this light-hardening resin layer also can cooperate different specification demands and different selections is arranged in addition, for example, and 10 μ m～80 μ m; Be all variation and modifications of being done according to the present patent application scope of patent protection, be all claims protection domain of the present invention and contain.
Claims (12)
1. the manufacture method of a multi-layer optical information record medium is characterized in that it comprises the following step at least:
Forming one second reflection horizon has on the masterplate of one second data pattern one;
Coating one CD hard resin-layer on this second reflection horizon on this masterplate;
One substrate is provided, and surface thereof has one first data pattern, on this surface and be coated with one first reflection horizon;
With this surface of this substrate this masterplate of fitting, this resin bed is then between this substrate and this masterplate;
Make it sclerosis with this resin bed of light beam irradiates; And
Peeling off this masterplate makes it separate with this second reflection horizon;
This substrate and another are had the reflection horizon substrate,, glue together each other in the mode of reflection horizon to the reflection horizon.
2. the manufacture method of multi-layer optical information record medium as claimed in claim 1 is characterized in that described masterplate, and the step of coating one light-hardening resin layer comprises with method of spin coating being coated with this resin bed on thereon this second reflection horizon.
3. the manufacture method of multi-layer optical information record medium as claimed in claim 1 is characterized in that described second reflection horizon, and its material is any material or the alloy that is selected from the group that aluminium, silver, gold, copper, chromium or silicon forms.
4. the manufacture method of multi-layer optical information record medium as claimed in claim 1 is characterized in that described first reflection horizon, and its material is to be selected from any in the group that gold, silver or silicon forms.
5. the manufacture method of multi-layer optical information record medium as claimed in claim 1 is characterized in that described light-hardening resin layer, and its thickness is 10 μ m～80 μ m.
6. the manufacture method of multi-layer optical information record medium as claimed in claim 1 is characterized in that described substrate, and its thickness is 0.1～0.2mm.
7. the manufacture method of a multi-layer optical information record medium is characterized in that it comprises the following step at least:
Forming one second reflection horizon has on the masterplate of one second data pattern one;
One substrate is provided, and surface thereof has one first data pattern, on this surface and be coated with one first reflection horizon;
Coating one light-hardening resin layer on this first reflection horizon of this substrate;
With fit this second reflection horizon of this masterplate, this first reflection horizon of this substrate, this resin bed is then between this first reflection horizon and this second reflection horizon;
Make it sclerosis with this resin bed of light beam irradiates; And
Peeling off this masterplate makes it separate with this second reflection horizon;
This substrate and another are had the substrate in reflection horizon,, glue together each other in the mode of reflection horizon to the reflection horizon.
8. the manufacture method of multi-layer optical information record medium as claimed in claim 7, its spy is described substrate, the step of coating one light-hardening resin layer comprises with this resin bed of rotary coating on its this first reflection horizon.
9. the manufacture method of multi-layer optical information record medium as claimed in claim 7 is characterized in that described second reflection horizon, and its material is any material or the alloy that is selected from the group that aluminium, silver, gold, copper, chromium or silicon forms.
10. the manufacture method of multi-layer optical information record medium as claimed in claim 7 is characterized in that described first reflection horizon, and its material is to be selected from any in the group that gold, silver or silicon forms.
11. the manufacture method of multi-layer optical information record medium as claimed in claim 7 is characterized in that described light-hardening resin layer, its thickness is 10 μ m～80 μ m.
12. the manufacture method of multi-layer optical information record medium as claimed in claim 7 is characterized in that described substrate, its thickness is 0.1～1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001302779A CN1157724C (en) | 2000-11-02 | 2000-11-02 | Process for preparing multi-layer optical information record medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001302779A CN1157724C (en) | 2000-11-02 | 2000-11-02 | Process for preparing multi-layer optical information record medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1353417A CN1353417A (en) | 2002-06-12 |
| CN1157724C true CN1157724C (en) | 2004-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001302779A Expired - Fee Related CN1157724C (en) | 2000-11-02 | 2000-11-02 | Process for preparing multi-layer optical information record medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101243507B (en) * | 2005-08-30 | 2010-05-19 | 松下电器产业株式会社 | Process for producing said multilayered information recording medium, and apparatus for producing multilayered information recording medium and screen constituting the apparatus |
-
2000
- 2000-11-02 CN CNB001302779A patent/CN1157724C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101243507B (en) * | 2005-08-30 | 2010-05-19 | 松下电器产业株式会社 | Process for producing said multilayered information recording medium, and apparatus for producing multilayered information recording medium and screen constituting the apparatus |
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| Publication number | Publication date |
|---|---|
| CN1353417A (en) | 2002-06-12 |
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Granted publication date: 20040714 Termination date: 20131102 |