CN1553444A - Write-once optical information recording medium - Google Patents
Write-once optical information recording medium Download PDFInfo
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- CN1553444A CN1553444A CNA031408141A CN03140814A CN1553444A CN 1553444 A CN1553444 A CN 1553444A CN A031408141 A CNA031408141 A CN A031408141A CN 03140814 A CN03140814 A CN 03140814A CN 1553444 A CN1553444 A CN 1553444A
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- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
本发明是关于一种只写一次型光学信息记录媒体，是以无机材料作为记录层，该记录层的材质的通式为A(1－y)My，其中A元素表示为硅(Si)或锡(Sn)；M元素表示为铝(Al)、银(Ag)、金(Au)、锌(Zn)、钛(Ti)、镍(Ni)、铜(Cu)、钴(Co)、钽(Ta)、铁(Fe)、钨(W)、铬(Cr)、钒(V)、镓(Ga)、铅(Pb)、钼(Mo)、铟(In)或鍗(Sb)：y为0.02至0.8的范围内。本发明是以无机材料作为记录层，可以利用各种波长的激光进行信息的记录/再生，且其制作方式简单，并具有低环境污染性、高耐旋光性及高耐候性等优点，具有广泛的产业利用价值。
The present invention relates to a write-once optical information recording medium, which uses an inorganic material as a recording layer. The material of the recording layer has a general formula of A (1-y ) My , wherein the A element is silicon (Si) or tin (Sn); the M element is aluminum (Al), silver (Ag), gold (Au), zinc (Zn), titanium (Ti), nickel (Ni), copper (Cu), cobalt (Co), tantalum (Ta), iron (Fe), tungsten (W), chromium (Cr), vanadium (V), gallium (Ga), lead (Pb), molybdenum (Mo), indium (In) or styrene (Sb); y is in the range of 0.02 to 0.8. The present invention uses an inorganic material as a recording layer, can use lasers of various wavelengths to record/reproduce information, and its manufacturing method is simple, and has the advantages of low environmental pollution, high optical resistance and high weather resistance, and has a wide range of industrial utilization value.
Description
Technical field
The present invention relates to the recording medium in a kind of area information storage information recording carrier, particularly relate to a kind of with inorganic material as recording layer, can utilize the laser of various wavelength to carry out recording of information/regeneration, and production method is simple, and has the Write-only one time type optic informating recording medium (WRITE ONCE RECORDING MEDIUM) of advantages such as low environment contaminative, high anti-optical activity and high-weatherability.
Background technology
Along with the prosperity of world-wide web and the lifting of computer capacity, the obtainable information category of institute is also more and more diversified, the speed of Computer Processing data, can handle literal, chart, sound, still frame from state the expanding to slowly that can only handle numeral at first, up till now the animation of high image quality.And store the recording medium of these data, also the paper tape from the initial stage proceeds to tape, hard disk, to the CD that is developed so far (Compact Disc, CD), digital versatile disc (Digital Versatile Disc, DVD) optic informating recording medium of series etc.
Optic informating recording medium and since have than tape and semiconductor memory have that higher recording density, volume are little, advantage such as storage life limit for length, height with low cost, compatible and error rate are low, make its market present rapid growth.In various types of optic informating recording mediums, that be most widely used promptly is so-called Write-only one time type optic informating recording medium (Write Once RecordingMedium, WORM), write-only disposable optical disk (Compact Disc-Recordable for example, CD-R) with the Write-only one time type digital versatile disc (Digital Versatile DiscRecordable, DVD-R) etc.This kind Write-only one time type optic informating recording medium be with the organic optical dyestuff as recording layer, and make the reaction of organic optical dye structure and cause base plate deformation by the LASER Light Source irradiation that focuses on, reach the effect of record material.
Yet, this kind is the Write-only one time type optic informating recording medium of recording layer with the organic dyestuff, employed organic dyestuff itself has that the exploitation of costing an arm and a leg, fill a prescription is difficult for, solution system is complicated, to the laser light wavelength sensitive, little for the tolerance of weather (temperature, humidity), tenure of use is long with to shortcomings such as environment pollute.Add for the follow-on blue light optical carrier that carries out recording/reproducing with short wavelength (405nm) blue laser, its applicable organic dyestuff kind still less, and these organic dyestuff are poorer to the dissolubility of organic solvent, and be difficult to use rotary coating (Spincoating) mode, it is coated on the disc substrates.And, because the disc structure of blue light optical carrier significantly changes, gauge on the disc substrates (track pitch, about 0.34-0.3um) dwindles, internal tension because of organic dyestuff solution, make organic dyestuff to coat uniformly on the disc substrates, can only utilize the evaporation mode to reach, therefore cause the difficulty in the production.
Therefore, at present industry has proposed to use inorganic material to be substituted with organic dye and as the relevant motion of Write-only one time type optic informating recording medium recording layer.And the inorganic material recording layer of Write-once optic informating recording medium can have different material systems because of different writing mechanisms.For instance, No. 5401609 cases of U.S. Pat disclose the mode that expands with gas and form record, and employed material is AgO
x, FeN
x, CuN
x, SnN
xNo. 4624914 cases of U.S. Pat disclose the potpourri that utilizes metal oxide and metal and cause the variation of structure to form measuring point, and employed material is pd-TeOx, Ni-NiOx.No. 4477819 cases of U.S. Pat and US5458941 case disclose utilizes interfacial reaction to form measuring point, and employed material is Ge/Al, Si/Al, Al-Cr/Si-Al, GaSb/Ag.No. 4960680 cases of U.S. Pat disclose utilizes irreversible transition formation measuring point, and employed material is Sb-In-Sn, Sn-Sb-Se/Sb-Bi etc.With inorganic material as the Write-only one time type optic informating recording medium of recording layer with compare as the Write-only one time type optic informating recording medium of recording layer with organic dyestuff, it has advantages such as making simple, low environment contaminative, high anti-optical activity and high-weatherability, and becomes the research and development target of following optic informating recording medium.
This shows that above-mentioned existing Write-only one time type optic informating recording medium still has many defectives, and demands urgently further being improved.
In order to solve the problem that the Write-only one time type optic informating recording medium exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing Write-only one time type optic informating recording medium exists, the inventor is based on abundant practical experience and professional knowledge, actively studied innovation, through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Fundamental purpose of the present invention is, overcome the defective that above-mentioned existing Write-only one time type optic informating recording medium exists, and provide a kind of Write-only one time type optic informating recording medium of new structure, technical problem underlying to be solved be make its with inorganic material as recording layer, can utilize the laser of various wavelength to carry out recording of information/regeneration.
Another object of the present invention is to, a kind of Write-only one time type optic informating recording medium is provided, technical matters to be solved is to make its production method simple, and has advantages such as low environment contaminative, high anti-optical activity and high-weatherability.
Purpose of the present invention and to solve its technical problem underlying be to adopt following technical scheme to realize.According to a kind of Write-only one time type optic informating recording medium that the present invention proposes, it comprises: a substrate; One first protective seam is arranged on this substrate; One inorganic material recording layer; be arranged on this first protective seam, this inorganic material recording layer is after being subjected to LASER Light Source irradiation heating; produce local reaction and be formed with the different measuring point of a reflectivity with heat absorption, the material of this inorganic material recording layer comprises the material shown in the formula (I): A
(1-y)M
y(I), the A element comprises one of them of silicon (Si) or tin (Sn); One of them of M element Bao Kuo Aluminum (Al), silver (Ag), gold (Au), zinc (Zn), titanium (Ti), nickel (Ni), copper (Cu), cobalt (Co), tantalum (Ta), iron (Fe), tungsten (W), chromium (Cr), vanadium (V), gallium (Ga), plumbous (Pb), molybdenum (Mo), indium (In) or single (Sb); In the scope of y As 0.02 to 0.8; One second protective seam is arranged on this inorganic material recording layer; And a reflection horizon, be arranged on this second protective seam.
The object of the invention to solve the technical problems can also be further achieved by the following technical measures.
Aforesaid Write-only one time type optic informating recording medium, the thickness of wherein said inorganic material recording layer are 3nm to 80nm.
Aforesaid Write-only one time type optic informating recording medium, the material of wherein said first protective seam and second protective seam comprises silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO respectively
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx) or yttria (YOx) one of them.
Aforesaid Write-only one time type optic informating recording medium, the thickness of wherein said first protective seam and second protective seam is respectively 1nm to 200nm.
Aforesaid Write-only one time type optic informating recording medium, wherein said first protective seam and second protective seam comprise a dielectric materials layer or a composite dielectric material layer.
Aforesaid Write-only one time type optic informating recording medium, the material in wherein said reflection horizon are to be selected from the group that the alloy of gold, silver, aluminium, titanium, lead, chromium, molybdenum, tungsten, tantalum and above-mentioned metal is organized.
Aforesaid Write-only one time type optic informating recording medium, the thickness in wherein said reflection horizon are 10nm to 200nm.
Aforesaid Write-only one time type optic informating recording medium, wherein said reflection horizon more comprises a resin protective layer, is arranged on this reflection horizon.
Aforesaid Write-only one time type optic informating recording medium, wherein said resin protective layer comprises light-hardening resin.
Aforesaid Write-only one time type optic informating recording medium, wherein said inorganic material recording layer comprise to be total to sputtering method, apple pie target sputtering method or to be total to the alloy-layer that the alloys target sputtering method forms.
Aforesaid Write-only one time type optic informating recording medium, wherein said substrate comprise write-only disposable optical disk substrate, Write-only one time type digital versatile disc substrate, blue light Write-only one time type digital versatile disc substrate or Write-only one time type blue light optical carrier substrate.
Purpose of the present invention and solve its technical problem underlying and also realize by the following technical solutions.A kind of Write-only one time type optic informating recording medium according to the present invention's proposition, it comprises: a substrate, an and inorganic material recording layer, be arranged on this substrate, this inorganic material recording layer, after being subjected to LASER Light Source irradiation heating, produce local reaction and be formed with the different measuring point of a reflectivity with heat absorption, the material of this inorganic material recording layer comprises the material shown in the formula (I): A
(1-y)M
y(I), the A element is to be selected from the group that silicon (Si) and tin (Sn) are organized; The M element is to be selected from the group that aluminium (Al), silver (Ag), gold (Au), zinc (Zn), titanium (Ti), nickel (Ni), copper (Cu), cobalt (Co), tantalum (Ta), iron (Fe), tungsten (W), chromium (Cr), vanadium (V), gallium (Ga), plumbous (Pb), molybdenum (Mo), indium (In) and single (Sb) are organized; Y is in 0.02 to 0.8 the scope.
The object of the invention to solve the technical problems can also be further achieved by the following technical measures.
Aforesaid Write-only one time type optic informating recording medium, wherein said inorganic material recording layer more comprises one first protective seam, is arranged on this inorganic material recording layer.
Aforesaid Write-only one time type optic informating recording medium, the material of wherein said first protective seam comprise silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx) or yttria (YOx).
Aforesaid Write-only one time type optic informating recording medium, wherein said first protective seam more comprises a reflection horizon, is arranged on this first protective seam.
Aforesaid Write-only one time type optic informating recording medium, wherein said inorganic material recording layer more comprises: one first protective seam is arranged between this inorganic material recording layer and this substrate; And one second protective seam, be arranged on this inorganic material recording layer.
Aforesaid Write-only one time type optic informating recording medium, the material of wherein said first protective seam and second protective seam comprises silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx) or yttria (YOx).
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The invention provides a kind of Write-only one time type optic informating recording medium; it is by substrate, is arranged at first protective seam on the substrate, is arranged at the inorganic material recording layer on first protective seam; this inorganic material recording layer; after being subjected to LASER Light Source irradiation heating, producing local reaction and be formed with the different measuring point of a reflectivity with heat absorption, be arranged at second protective seam and the reflection horizon that is arranged on second protective seam on the inorganic material recording layer.Wherein, the material of inorganic material recording layer comprises the material shown in the formula (I): A
(1-y)M
y(I), the A element is to be selected from the group that silicon (Si) and tin (Sn) are organized; The M element is that to be selected from the group that aluminium (Al), silver (Ag), gold (Au), zinc (Zn), titanium (Ti), nickel (Ni), copper (Cu), cobalt (Co), tantalum (Ta), iron (Fe), tungsten (W), chromium (Cr), vanadium (V), gallium (Ga), plumbous (Pb), molybdenum (Mo), indium (In) and single (Sb) are organized: y be in 0.02 to 0.8 the scope.
The material of above-mentioned first protective seam and second protective seam comprises dielectric material, and it for example is silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx) and yttria (YOx).And first protective seam and second protective seam can be single dielectric materials layer or by composite dielectric layer two-layer or that two-layer above dielectric materials layer is formed.The material in reflection horizon can be the alloy of gold, silver, aluminium, titanium, lead, chromium, molybdenum, tungsten, tantalum and above-mentioned metal.
Write-only one time type optic informating recording medium of the present invention can stably write recorded information, and have practicality.And, compared to organic dyestuff, the present invention with inorganic material as recording layer, and when being applied to optic informating recording medium, have more be applicable to the full light of visible light territory, highly compatible, high density, highly resolve measuring point, be suitable for high power speed different size, advantages such as low material cost, low environment contaminative, high anti-optical activity and high-weatherability.
In sum, the Write-only one time type optic informating recording medium of special construction of the present invention, it as recording layer, can utilize the laser of various wavelength to carry out recording of information/regeneration with inorganic material; Its production method is simple in addition, and has advantages such as low environment contaminative, high anti-optical activity and high-weatherability.It has above-mentioned many advantages and practical value, and having there is no similar structural design in like product publishes or uses, no matter it structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Figure 1A to Fig. 1 E is respectively the fragmentary cross-sectional view of the various structures of optic informating recording medium of the present invention.
Fig. 2 is an apple pie target structure synoptic diagram.
Fig. 3 be experimental example 1 the test disc DVD 3T-14T dynamic observe figure (Eyepattern).
Fig. 4 A be experimental example 1 the test disc writing pulse width 20ns-70ns scope internal reflection rate and time chart.
Fig. 4 B is respectively the Charged Coupled Device camera photographic view in writing pulse width 20ns-70ns scope of the test disc of experimental example 1.
Fig. 5 A be experimental example 2 the test disc writing pulse width 20ns-70ns scope internal reflection rate and time chart.
Fig. 5 B is respectively the Charged Coupled Device camera photographic view in writing pulse width 20ns-70ns scope of the test disc of experimental example 2.
Fig. 6 A be experimental example 3 the test disc writing pulse width 20ns-70ns scope internal reflection rate and time chart.
Fig. 6 B is respectively the Charged Coupled Device camera photographic view in writing pulse width 20ns-70ns scope of the test disc of experimental example 3.
100: substrate 102: protective seam
104: inorganic material recording layer 106: protective seam
108: reflection horizon 110: resin protective layer
200:A element 202:M element
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of Write-only one time type optic informating recording medium, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Seeing also shown in Figure 1A to the 1E, is respectively the fragmentary cross-sectional view of the various disc structures of Write-only one time type optic informating recording medium of the present invention.In Figure 1A to Fig. 1 E, identical components gives identical label, and omits its explanation.
See also shown in Figure 1A, Write-only one time type optic informating recording medium of the present invention, its structure is made of substrate 100, protective seam 102, inorganic material recording layer 104, protective seam 106, reflection horizon 108; Wherein:
Above-mentioned substrate 100, comprising that the surface has the transparency carrier of groove, for example is to comprise write-only disposable optical disk substrate, Write-only one time type digital versatile disc substrate, blue light Write-only one time type digital versatile disc substrate and Write-only one time type blue light optical carrier substrate etc.Its material for example is glass, polycarbonate (Polycarbonate, PC), polymethylmethacrylate (Polymethylmethacrylate, PMMA) or the poly-hydrocarbon copolymer of ring (Metallocene CatalyzedCyclo Olefin Copolymer, mCOC) etc.
Above-mentioned protective seam 102 is arranged on the substrate 100, and its material comprises dielectric material, for example is silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx), yttria (YOx) etc.The thickness of protective seam 102 for example is that 1nm is between the 200nm.This protective seam 102 comprises single dielectric materials layer or the composite dielectric material layer of being made up of the dielectric materials layer more than one deck.
Above-mentioned inorganic material recording layer 104 is arranged on the protective seam 102, and the material of inorganic material recording layer 104 comprises the material shown in the formula (I):
A
(1-y)M
y (I)
The A element can be silicon (Si) or tin (Sn); The M element can be aluminium (Al), silver (Ag), gold (Au), zinc (Zn), titanium (Ti), nickel (Ni), copper (Cu), cobalt (Co), tantalum (Ta), iron (Fe), tungsten (W), chromium (Cr), vanadium (V), gallium (Ga), plumbous (Pb), molybdenum (Mo), indium (In), form (Sb): y is in 0.02 to 0.8 the scope.
Above-mentioned inorganic material recording layer 104 can use the material of the above-mentioned formula of single kind (I) or mix the material shown in two or more formula of use (I).The thickness of inorganic material recording layer 104 for example is that 3nm is between the 80nm.This inorganic material recording layer 104 after being subjected to LASER Light Source irradiation heating, producing local reaction and is formed with the different measuring point of a reflectivity with heat absorption.
Above-mentioned protective seam 106 is arranged on the inorganic material recording layer 104, and its material comprises dielectric material, for example is silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx), yttria (YOx) etc.The thickness of protective seam 106 for example is that 1nm is between the 200nm.Protective seam 106 comprises single dielectric materials layer or the composite dielectric material layer of being made up of the dielectric materials layer more than one deck.
Above-mentioned reflection horizon 108 is arranged on the protective seam 106, and the material in this reflection horizon 108 for example is metal and alloy materials thereof such as gold, silver, aluminium, titanium, lead, chromium, molybdenum, tungsten, tantalum.The thickness in reflection horizon 108 for example is that 10nm is between the 200nm.
In the disc structure of above-mentioned optic informating recording medium, more can on reflection horizon 108, form and be provided with one deck resin protective layer 110, this resin protective layer 110 for example is a light-hardening resin, and forms the optic informating recording medium disc structure shown in Figure 1B.
The structure of Write-only one time type optic informating recording medium of the present invention also can directly be made of substrate 100, inorganic material recording layer 104, protective seam 106 shown in Fig. 1 C.Shown in Fig. 1 D, constituted with reflection horizon 108 by substrate 100, inorganic material recording layer 104, protective seam 106.Shown in Fig. 1 E, constituted with protective seam 106 by substrate 100, protective seam 102, inorganic material recording layer 104.
The recording principle of Write-only one time type optic informating recording medium of the present invention, be in recording process, can use laser light to focus on the inorganic material recording layer 104 by substrate 100, utilize high power pulsed ion beams (pulse high power) mode, make 104 heat absorptions of inorganic material recording layer and form measuring point (recorded marks), so can cause measuring point and non-measuring point high reflectance difference, and this reaction is unrepeatable, so utilize this specific character of inorganic material recording layer 104 and cooperate film design to can be used as the Write-only one time type optic informating recording medium.
And the present invention is substituted with organic dye with inorganic material and as the recording layer of optic informating recording medium, because inorganic material has advantages such as high anti-optical activity and high-weatherability than organic dyestuff, therefore can prolongs the tenure of use of optic informating recording medium.In addition, the cost of inorganic material is cheap than organic dyestuff, and does not need to use organic solvent, so its cost of manufacture is lower, and can not cause environmental pollution.In addition, use inorganic material can cooperate the recording mode of using plane/ditch (Land/Groove), make optic informating recording medium have high record density as recording layer.Therefore, above-mentioned various disc structures of the present invention can be applied to write-only disposable optical disk (Compact Disc-Recordable, CD-R), the Write-only one time type digital versatile disc (Digital Versatile Disc-Recordable, DVD-R), blue light Write-only one time type digital versatile disc and Write-only one time type blue light optical carrier.
The above-mentioned structure that is illustrated as Write-only one time type optic informating recording medium of the present invention, the structure of following below with above-mentioned Figure 1A is the manufacture method of example explanation Write-only one time type optic informating recording medium of the present invention.
At first, provide a substrate 100.The material of substrate 100 be polycarbonate (Polycarbonate, PC).On substrate 100, form layer protective layer 102.The formation method of this protective seam 102 for example is sputtering method or rubbing method.Then, form inorganic material recording layer 104 on protective seam 102, the material of this inorganic material recording layer 104 is A shown in above-mentioned formula (I)
(1-y)M
yAlloy.The formation method of inorganic material recording layer 104 comprises sputtering method.When carrying out sputter process, be to adopt the mode that is total to sputter to form inorganic material recording layer 104.That is, [the M element can be aluminium (Al) can to put into the target of A element [the A element can be silicon (Si) or tin (Sn)] and M element in sputtering chamber simultaneously, silver (Ag), gold (Au), zinc (Zn), titanium (Ti), nickel (Ni), copper (Cu), cobalt (Co), tantalum (Ta), iron (Fe), tungsten (W), chromium (Cr), vanadium (V), gallium (Ga), plumbous (Pb), molybdenum (Mo), indium (In), single (Sb)] target, with the alloy of A element and M element as target (alloys target sputtering method altogether), (apple pie target sputtering method Apple pie target (as shown in Figure 2 perhaps A element and M element to be made into a target in staggered mode, label 200 expression A elements, label 202 expression M elements)).The A element can be by the adjustment that becomes to assign to of target with the ratio of M element in the inorganic material recording layer 104.Then, formation is provided with another layer protective seam 106 on inorganic material recording layer 104.The formation method of this protective seam 106 for example is sputtering method or rubbing method.Afterwards, form reflection horizon 108 again on protective seam 106, the formation method in reflection horizon 108 for example is a sputtering method.
Write-only one time type optic informating recording medium of the present invention can utilize the mode of sputter to form protective seam, recording layer and reflection horizon, so its processing procedure is also comparatively easy when making.
Then, for proving the record character of optic informating recording medium of the present invention, below produce the test disc of experimental example 1 according to the method for making of above-mentioned Write-only one time type optic informating recording medium especially to experimental example 3, and the test disc of experimental example 1 carried out dynamic test, experimental example 1 to the test disc of experimental example 3 is carried out static test, but scope of the present invention is not limited to experimental example 1 to experimental example 3.
[making of test disc]
Experimental example 1: go up formation layer protective layer (zinc sulphide-monox (ZnS-SiO at DVD substrate (74 microns on gauge)
2), thickness 30nm), utilize the mode of sputter altogether; on protective seam, form inorganic material recording layer (sial (SiAl) alloy; the ratio of silicon and aluminium is 40: 60, and thickness is 20nm), on the inorganic material recording layer, form layer protective layer (zinc sulphide-monox (ZnS-SiO then
2), thickness 30nm), and on protective seam, form one deck reflection horizon (aluminum titanium alloy (AlTi), thickness 100nm), and finish the test disc of experimental example 1.
Experimental example 2: go up formation layer protective layer (zinc sulphide-monox (ZnS-SiO at DVD substrate (74 microns on gauge)
2), thickness 30nm) after, the mode of sputter altogether utilized; on protective seam, form inorganic material recording layer (tin aluminium (SnAl) alloy; the ratio of tin and aluminium is 35: 65, and thickness is 20nm), then on the inorganic material recording layer, form layer protective layer (zinc sulphide-monox (ZnS-SiO
2), thickness 30nm), and finish the test disc of experimental example 2.
Experimental example 3; Go up formation layer protective layer (zinc sulphide-monox (ZnS-SiO at DVD substrate (74 microns on gauge)
2), thickness 30nm), utilize the mode of sputter altogether; on protective seam, form inorganic material recording layer (tin aluminium (SnAl) alloy; the ratio of tin and aluminium is 35: 65, and thickness is 20nm), on the inorganic material recording layer, form layer protective layer (zinc sulphide-monox (ZnS-SiO then
2), thickness 30nm), and on protective seam, form one deck reflection horizon (aluminum titanium alloy (AlTi), thickness 100nm), and finish the test disc of experimental example 3.
[dynamic test]
Use 2.4 times DVD CD writers, after with the writing speed of the recording power of 11mW, 8.7ms the test disc of experimental example 1 being carried out burning and handles, utilize the disc of dynamic tester (Pulstek corporate system, model DDU1000) test experiments example 1.The DVD3T-14T of the test disc of this experimental example 1 dynamic observes figure (Eye pattern) as shown in Figure 3, and its rate of excitation (Jitter) is about 7.3%, meets the specification that dynamically writes.
[static test]
Use static test instrument (Toptica corporate system, model Media test-1), respectively experimental example 1 to the test disc of experimental example 3 is tested,, monitor the process of whole record with when writing marked.This static test machine is to use one and half to lead laser diode (at the P2:398-nm wavelength) under single pulse mode, write a measuring point on the test disc, and operate another and partly lead the process of laser diode (at the P1:422-nm wavelength) at continuous wave mode (cw mode) monitoring record that goes down, also be and utilize different laser power (mW) and laser pulse (ns) to write suitable measuring point, its material production is changed, and then the change that produces optical property, cause the difference of measuring point and non-measuring point reflectivity, convert voltage signal to and use the switching time that measures two-phase, and corresponding each condition is utilized the Charged Coupled Device camera image, the process of observed and recorded.Wherein, the Writing power of static test machine is 12mW, and writing pulse width is 20ns-70ns.
See also shown in Fig. 4 A and Fig. 4 B, be respectively above-mentioned experimental example 1 the test disc writing pulse width 20ns-70ns scope internal reflection rate and time chart, and Charged Coupled Device camera photographic view.Result by Fig. 4 A and Fig. 4 B it seems, when the material of organic recording layer is sial (SiAl) alloy, learn by Charged Coupled Device camera photographic view, at Writing power is 10mW, burst length is just can write measuring point more than the 20ns, and the reflectivity of measuring point by the different characteristics of this reflectivity, promptly can be used as the Write-only one time type optic informating recording medium with the reflectivity of posting field is not different on every side.
See also shown in Fig. 5 A and Fig. 5 B, be respectively above-mentioned experimental example 2 the test disc writing pulse width 20ns-70ns scope internal reflection rate and time chart, and Charged Coupled Device camera photographic view.See also shown in Fig. 6 A and Fig. 6 B, be respectively experimental example 3 the test disc writing pulse width 20ns-70ns scope internal reflection rate and time chart and Charged Coupled Device camera photographic view.Result by Fig. 5 A and Fig. 5 B, Fig. 6 A and Fig. 6 B it seems, when the material of organic recording layer is tin aluminium (SnAl) alloy, can learn by Charged Coupled Device camera photographic view, at Writing power is 10mW, burst length is just can write measuring point more than the 30ns, and the reflectivity of measuring point is not with the reflectivity of posting field is not different on every side, by the different characteristics of this reflectivity, and promptly can be as the Write-only one time type optic informating recording medium.And, according to experimental example 2 test result with experimental example 3, when film layer structure when sputter one reflection horizon (the test disc of experimental example 3) is arranged, can be by this reflection horizon heat conduction size of coming ocntrol-metering point moderately.
In sum, optic informating recording medium of the present invention can stably write recorded information, and has practicality.And, compared to organic dyestuff, the present invention with inorganic material as recording layer, and when being applied to optic informating recording medium, have more be applicable to the full light of visible light territory, highly compatible, high density, highly resolve measuring point, be suitable for high power speed different size, advantages such as low material cost, low environment contaminative, high anti-optical activity and high-weatherability.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not to be in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (17)
1, a kind of Write-only one time type optic informating recording medium is characterized in that it comprises:
One substrate;
One first protective seam is arranged on this substrate;
One inorganic material recording layer; be arranged on this first protective seam, this inorganic material recording layer is after being subjected to LASER Light Source irradiation heating; produce local reaction and be formed with the different measuring point of a reflectivity with heat absorption, the material of this inorganic material recording layer comprises the material shown in the formula (I):
A
(1-y)M
y (I)
The A element comprises one of them of silicon (Si) or tin (Sn); One of them of M element Bao Kuo Aluminum (Al), silver (Ag), gold (Au), zinc (Zn), titanium (Ti), nickel (Ni), copper (Cu), cobalt (Co), tantalum (Ta), iron (Fe), tungsten (W), chromium (Cr), vanadium (V), gallium (Ga), plumbous (Pb), molybdenum (Mo), indium (In) or single (Sb); In the scope of y As 0.02 to 0.8;
One second protective seam is arranged on this inorganic material recording layer; And
One reflection horizon is arranged on this second protective seam.
2, Write-only one time type optic informating recording medium according to claim 1, the thickness that it is characterized in that wherein said inorganic material recording layer is 3nm to 80nm.
3, Write-only one time type optic informating recording medium according to claim 1 is characterized in that the material of wherein said first protective seam and second protective seam comprises silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO respectively
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx) or yttria (YOx) one of them.
4, Write-only one time type optic informating recording medium according to claim 1 is characterized in that the thickness of wherein said first protective seam and second protective seam is respectively 1nm to 200nm.
5, Write-only one time type optic informating recording medium according to claim 1 is characterized in that wherein said first protective seam and second protective seam comprise a dielectric materials layer or a composite dielectric material layer.
6, Write-only one time type optic informating recording medium according to claim 1, the material that it is characterized in that wherein said reflection horizon are to be selected from the group that the alloy of gold, silver, aluminium, titanium, lead, chromium, molybdenum, tungsten, tantalum and above-mentioned metal is organized.
7, Write-only one time type optic informating recording medium according to claim 1, the thickness that it is characterized in that wherein said reflection horizon is 10nm to 200nm.
8, Write-only one time type optic informating recording medium according to claim 1 is characterized in that wherein said reflection horizon, more comprises a resin protective layer, is arranged on this reflection horizon.
9, Write-only one time type optic informating recording medium according to claim 8 is characterized in that wherein said resin protective layer comprises light-hardening resin.
10, Write-only one time type optic informating recording medium according to claim 1 is characterized in that wherein said inorganic material recording layer comprises to be total to sputtering method, apple pie target sputtering method or to be total to the alloy-layer that the alloys target sputtering method forms.
11, Write-only one time type optic informating recording medium according to claim 1 is characterized in that wherein said substrate comprises write-only disposable optical disk substrate, Write-only one time type digital versatile disc substrate, blue light Write-only one time type digital versatile disc substrate or Write-only one time type blue light optical carrier substrate.
12, a kind of Write-only one time type optic informating recording medium is characterized in that it comprises:
One substrate; And
One inorganic material recording layer, be arranged on this substrate, this inorganic material recording layer is after being subjected to LASER Light Source irradiation heating, produce local reaction and be formed with the different measuring point of a reflectivity with heat absorption, the material of this inorganic material recording layer comprises the material shown in the formula (I):
A
(1-y)M
y (I)
The A element is to be selected from the group that silicon (Si) and tin (Sn) are organized; The M element is that to be selected from the group that aluminium (Al), silver (Ag), gold (Au), zinc (Zn), titanium (Ti), nickel (Ni), copper (Cu), cobalt (Co), tantalum (Ta), iron (Fe), tungsten (W), chromium (Cr), vanadium (V), gallium (Ga), plumbous (Pb), molybdenum (Mo), indium (In) and single (Sb) are organized: y be in 0.02 to 0.8 the scope.
13, Write-only one time type optic informating recording medium according to claim 12 is characterized in that wherein said inorganic material recording layer more comprises one first protective seam, is arranged on this inorganic material recording layer.
14, Write-only one time type optic informating recording medium according to claim 13 is characterized in that the material of wherein said first protective seam comprises silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx) or yttria (YOx).
15,, it is characterized in that wherein said first protective seam more comprises a reflection horizon, is arranged on this first protective seam according to claim 13 described Write-only one time type optic informating recording mediums.
16, Write-only one time type optic informating recording medium according to claim 12 is characterized in that wherein said inorganic material recording layer, more comprises:
One first protective seam is arranged between this inorganic material recording layer and this substrate; And
One second protective seam is arranged on this inorganic material recording layer.
17, Write-only one time type optic informating recording medium according to claim 16 is characterized in that the material of wherein said first protective seam and second protective seam comprises silicon nitride (SiNx), zinc sulphide-monox (ZnS-SiO
2), aluminium nitride (AlNx), silit (SiC), germanium nitride (GeNx), titanium nitride (TiNx), tantalum oxide (TaOx) or yttria (YOx).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031408141A CN1553444A (en) | 2003-06-04 | 2003-06-04 | Write-once optical information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031408141A CN1553444A (en) | 2003-06-04 | 2003-06-04 | Write-once optical information recording medium |
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|---|---|
| CN1553444A true CN1553444A (en) | 2004-12-08 |
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ID=34323899
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100403426C (en) * | 2006-08-04 | 2008-07-16 | 江苏永兴多媒体有限公司 | Blue light CD and production method |
| CN100412971C (en) * | 2005-03-10 | 2008-08-20 | 索尼株式会社 | Write once optical recording medium |
| CN100580783C (en) * | 2007-01-24 | 2010-01-13 | 中国钢铁股份有限公司 | Write-once type optical recording medium |
| CN100582002C (en) * | 2007-04-29 | 2010-01-20 | 中国科学院上海微系统与信息技术研究所 | Storage material without tellurium, preparation method and application |
| CN101868826B (en) * | 2007-11-27 | 2012-07-11 | 索尼公司 | Recordable optical recording medium and method for manufacturing the same |
| CN103050136A (en) * | 2011-10-17 | 2013-04-17 | 索尼公司 | Recording layer for optical information recording medium and optical information recording medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100412971C (en) * | 2005-03-10 | 2008-08-20 | 索尼株式会社 | Write once optical recording medium |
| CN100403426C (en) * | 2006-08-04 | 2008-07-16 | 江苏永兴多媒体有限公司 | Blue light CD and production method |
| CN100580783C (en) * | 2007-01-24 | 2010-01-13 | 中国钢铁股份有限公司 | Write-once type optical recording medium |
| CN100582002C (en) * | 2007-04-29 | 2010-01-20 | 中国科学院上海微系统与信息技术研究所 | Storage material without tellurium, preparation method and application |
| CN101868826B (en) * | 2007-11-27 | 2012-07-11 | 索尼公司 | Recordable optical recording medium and method for manufacturing the same |
| CN102623027A (en) * | 2007-11-27 | 2012-08-01 | 索尼公司 | Write-once optical recording medium and process for manufacturing the same |
| CN103050136A (en) * | 2011-10-17 | 2013-04-17 | 索尼公司 | Recording layer for optical information recording medium and optical information recording medium |
| CN103050136B (en) * | 2011-10-17 | 2017-03-08 | 索尼公司 | Recording layer for optic informating recording medium and optic informating recording medium |
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