CN100580783C - Optical recording media for writing only once - Google Patents
Optical recording media for writing only once Download PDFInfo
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- CN100580783C CN100580783C CN200710090266A CN200710090266A CN100580783C CN 100580783 C CN100580783 C CN 100580783C CN 200710090266 A CN200710090266 A CN 200710090266A CN 200710090266 A CN200710090266 A CN 200710090266A CN 100580783 C CN100580783 C CN 100580783C
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Abstract
The invention relates to a write-once-only optical record medium, which comprises a baseplate and a film coated on the baseplate. The coated film comprises a record layer and a reflecting layer connected with the record layer. The record layer primarily contains germanium, antimony and silicon or the mixture of any two elements of germanium, antimony and silicon. The reflecting layer primarily contains aluminium, copper, silver and aurum or alloy consisting of two elements of aluminium, copper, silver and aurum. When a writing and recording laser emit to the coated film, local material constituents change and react at the interface area of the record layer and the reflect layer, thus forming a record point as a digital signal source. As the record layer is made of inorganic materials which can grow by adopting the direct current sputtering technology, and the manufacturing process of products is minimized, the production cost is significantly reduced, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of optical record medium, particularly relate to a kind of can significantly reducing production costs, and the optical record medium of the Write-only one time type of enhancing productivity (write-once opticalrecording medium).
Background technology
See also shown in Figure 1, it is the synoptic diagram of the general existing optical record medium of explanation, usually, the optical record medium 1 of Write-only one time type, comprise a substrate 11, and be formed at a dielectric layer 12 on this substrate 11 in regular turn, one recording layer 13, an and reflection horizon 14, when one write the record laser (laser is laser light, below all be called laser) when this optical record medium 1 is injected in these substrate 11 bottom surfaces certainly, can vertically be injected this recording layer 13 by these dielectric layer 12 deviations, and in this recording layer 13, produce local reaction and form measuring point as the digital signals source, with record, preservation data (data is data, below all be called data).
In early days, industrial community is with the material of organic dyestuff as this recording layer 13, yet, along with people day by day increase the demand of the capacity of recording medium, organic dyestuff reaches problems such as penetrance is low because but the big absorbing light wavelength coverage of the internal tension of itself is narrower, causes serious obstruction for the optical record medium that develops high power capacity, therefore, the exploitation of inorganic material is just arisen at the historic moment.
At present, industrial community is with the material of inorganic material as this recording layer 13 mostly, as No. 5252370 patent case of the U.S., propose with silver oxide, and/or nitrided iron is as the material of this recording layer 13; No. 4624914 patent case of the U.S. then proposes with the potpourri of tellurium oxide and the palladium material as this recording layer 13; Proposition is also arranged in addition with the reported literature of nickel oxide as the material of this recording layer 13; But because these preceding cases propose to be used as the material of this recording layer 13, for example silver oxide, nitrided iron, tellurium oxide/palladium, nickel oxide etc. must adopt radio frequency and the manufacturing of reactive sputter technology growth, production cost height not only, and also production efficiency is low.
In addition, also propose with the material of antimony/indium/tin, also have document to propose to provide industry more to select with the material of multiple potpourris such as silicon-aluminium as this recording layer 13 as this recording layer 13 just like No. 4960680 patent case of the U.S..
Moreover, No. 091121022 patent case of TaiWan, China, then propose to constitute this recording layer with plural secondary recording layer, and after writing record laser by irradiation, diffusion takes place and mixes in the material of these secondary recording layers, makes characteristic that reflectivity reduces and forms record mark, though industry similarly can be provided more to be selected, but, also cause production cost to reduce, thereby influence the popularization of product because operation is various.
This shows that the optical record medium of above-mentioned existing Write-only one time type obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, 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, this obviously is the problem that the anxious desire of relevant dealer solves.Because the continuous breakthrough and innovation of technology of read-write optical record medium, simultaneously, people are also more and more higher to the capacity requirement of recording medium, therefore how to found a kind of optical record medium of Write-only one time type of new structure, improve the optical record medium of present Write-only one time type, real one of the current important research and development problem that belongs to, the direction and the utmost point that also become current industry ongoing effort need improved target.
Because the defective that the optical record medium of above-mentioned existing Write-only one time type exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, optical record medium in the hope of the Write-only one time type of founding a kind of new structure, can improve the optical record medium of general existing Write-only one time type, make it have more practicality.Through constantly research, design, and, create the present invention who has practical value finally through after studying sample and improvement repeatedly.
Summary of the invention
The objective of the invention is to, overcome the defective of the optical record medium existence of existing Write-only one time type, and provide a kind of optical record medium of Write-only one time type of new structure, technical matters to be solved is that it can be reduced production costs, and can enhance productivity, be very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.The optical record medium of a kind of Write-only one time type that proposes according to the present invention, can write record laser and match and be used for record material with one, afterwards, match and can read record material with a regeneration laser again, the optical record medium of this Write-only one time type comprises a plate base, and one deck is formed at the plated film on this substrate; It is characterized in that: this plated film, comprise one deck recording layer, reach the reflection horizon that one deck is connected with this recording layer and is used to reflect this reproducing laser; The major component of this recording layer is to be selected from germanium, antimony, silicon, or the combination of these elements, the major component in this reflection horizon is to be selected from aluminium, copper, silver, gold, or the combination of these elements, when this writes record laser when injecting this plated film, can produce local material at the interface zone in this recording layer and this reflection horizon and form reacting condition, make reflectivity improve, and form a measuring point as the digital signals source.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The optical record medium of aforesaid Write-only one time type, the major component of wherein said recording layer are the antimony of atomic percent more than 80, and the major component in this reflection horizon is a silver.
The optical record medium of aforesaid Write-only one time type, the major component of wherein said recording layer are the silicon of atomic percent more than 80, and the major component in this reflection horizon is an aluminium.
The optical record medium of aforesaid Write-only one time type, the recording layer of wherein said plated film and reflection horizon are to be stacked and placed in regular turn on this substrate, this writes record laser is to inject this optical record medium from this substrate bottom surface, and the material of this substrate is to be selected from glass, polycarbonate, or polymethylmethacrylate, this recording layer thickness is 10nm～100nm, major component is the germanium of atomic percent more than 80, this reflector thickness is 80nm～200nm, and major component is a silver, and comprise an atomic percent 0.01～3.0 and be used to improve first minor component of the reflectivity in this reflection horizon, one atomic percent 0.01～2.0 and being used to improves second minor component of the corrosion resistivity in this reflection horizon, and an atomic percent 0.01～2.0 and being used to improves the 3rd minor component of the physical strength in this reflection horizon, and this first minor component is to be selected from palladium, copper, platinum, or these combination, this second minor component is to be selected from scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, or these combination, the 3rd minor component is to be selected from barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, or these combination.
The optical record medium of aforesaid Write-only one time type, wherein said plated film comprises that also one deck is stacked and placed on the dielectric layer on this substrate, and this recording layer and this reflection horizon are to be stacked and placed in regular turn on this dielectric layer, this writes record laser is to inject this optical record medium from this substrate bottom surface, and vertically injected this recording layer by this dielectric layer deviation, and the material of this substrate is to be selected from glass, polycarbonate, or polymethylmethacrylate, this medium thickness is to be 50nm～300nm, material is to be selected from zinc sulphide-silicon dioxide, aluminium oxide, zirconia, titanium nitride, or silit, the thickness of this recording layer is to be 10nm～100nm, major component is the germanium of atomic percent more than 80, the thickness in this reflection horizon is to be 80nm～200nm, and major component is a silver, and comprise an atomic percent 0.01～3.0 and be used to improve first minor component of the reflectivity in this reflection horizon, one atomic percent 0.01～2.0 and being used to improves second minor component of the corrosion resistivity in this reflection horizon, and an atomic percent 0.01～2.0 and being used to improves the 3rd minor component of the physical strength in this reflection horizon, and this first minor component is to be selected from palladium, copper, platinum, or these combination, this second minor component is to be selected from scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, or these combination, the 3rd minor component is to be selected from barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, or these combination.
The optical record medium of aforesaid Write-only one time type, wherein said plated film comprise also that one deck is stacked and placed on and are used to the protective seam of avoiding this reflection horizon to wreck on this reflection horizon, and the material of this protective seam is a light-hardening resin.
The optical record medium of aforesaid Write-only one time type, the reflection horizon of wherein said plated film and recording layer are to be stacked and placed in regular turn on this substrate, this writes record laser is to inject this optical record medium from this plated film end face, and the material of this substrate is to be selected from glass, polycarbonate, or polymethylmethacrylate, the thickness of this recording layer is to be 10nm～100nm, major component is the germanium of atomic percent more than 80, the thickness in this reflection horizon is to be 80nm～200nm, and major component is to be silver, and comprise an atomic percent 0.01～3.0 and be used to improve first minor component of the reflectivity in this reflection horizon, one atomic percent 0.01～2.0 and being used to improves second minor component of the corrosion resistivity in this reflection horizon, and an atomic percent 0.01～2.0 and being used to improves the 3rd minor component of the physical strength in this reflection horizon, and this first minor component is to be selected from palladium, copper, platinum, or these a combination, this second minor component is to be selected from scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, or these combination, the 3rd minor component is to be selected from barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, or these combination.
The optical record medium of aforesaid Write-only one time type, wherein said plated film comprises that also one deck is stacked and placed on the dielectric layer on this recording layer, this writes record laser is to inject this optical record medium from this plated film end face, and vertically injected this recording layer by this dielectric layer deviation, and the thickness of this dielectric layer is to be 50nm～300nm, material is to be selected from zinc sulphide-silicon dioxide, aluminium oxide, zirconia, titanium nitride, or silit.
The optical record medium of aforesaid Write-only one time type, wherein said plated film comprise also that one deck is stacked and placed on and are used to the transparent protective seam of avoiding this dielectric layer to wreck on this dielectric layer, and the material of this protective seam is a light-hardening resin.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, the optical record medium of Write-only one time type of the present invention has following advantage and beneficial effect at least:
1, this recording layer of the present invention is to select the inorganic material that can adopt the dc sputtering technology growth for use, and can reduce production costs, and enhances productivity.
2, in addition, use the material behavior in this reflection horizon, not only can match and reach the effect of record, can also be used to reflect this reproducing laser simultaneously, and can reduce the coating layers of this optical record medium with this recording layer.
In sum, the invention relates to a kind of optical record medium of Write-only one time type, it comprises substrate, and be formed at plated film on the substrate, and plated film comprises recording layer, and the reflection horizon that is connected with recording layer, wherein, the major component of recording layer can be germanium, antimony, silicon, or the potpourri of above-mentioned any two above elements formation, and the major component in reflection horizon can be aluminium, copper, silver, gold, or the alloy of above-mentioned any two above metals formation, when writing record laser when injecting plated film, can produce local material at the interface zone in recording layer and reflection horizon and form reacting condition and form a measuring point as the digital signals source, owing to recording layer is to select the inorganic material that can adopt the dc sputtering technology growth for use, and production operation minimization, therefore, can significantly reduce production costs, and enhance productivity.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the optical record medium of more existing Write-only one time type has the outstanding effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is 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, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the synoptic diagram of the general existing optical record medium of explanation.
Fig. 2 is the synoptic diagram of explanation optical record medium first preferred embodiment of the present invention.
Fig. 3 is the synoptic diagram of explanation optical record medium the 5th preferred embodiment of the present invention.
Fig. 4 is the synoptic diagram of explanation optical record medium the 6th preferred embodiment of the present invention.
Fig. 5 is the synoptic diagram of explanation optical record medium the 7th preferred embodiment of the present invention.
Fig. 6 is the synoptic diagram of explanation optical record medium the 8th preferred embodiment of the present invention.
Fig. 7 is the synoptic diagram of explanation optical record medium the 9th preferred embodiment of the present invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of optical record medium, structure, feature and the effect thereof of the Write-only one time type that foundation the present invention is proposed, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can clearly present with reference in the detailed description of graphic preferred embodiment in following cooperation.Before the present invention is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.
The optical record medium of Write-only one time type of the present invention can be write record laser and matches and be used for record material with one, afterwards, matches with a regeneration laser and can read record material.
See also shown in Figure 2, be the explanation optical record medium first preferred embodiment of the present invention synoptic diagram.One first preferred embodiment of the optical record medium of Write-only one time type of the present invention comprises a plate base 2, and one deck is formed at the plated film 3 on this substrate 2.
This substrate 2 is with material transparent, and for example glass, polycarbonate, or formation such as polymethylmethacrylate in the present embodiment, are to be that example describes with glass.
This plated film 3 comprises that one deck is stacked and placed on the recording layer 31 on this substrate 2, reaches the reflection horizon 32 that one deck is stacked and placed on this recording layer 31 and is used to reflect this reproducing laser.
The thickness of this recording layer 31 is 10nm～100nm, but and major component germanium, silicon, antimony, and/or the potpourri optionally formed of these elements, and comprise a minor component that constitutes by other elements, and the atomic percent of major component content need just can reach the standard of blue light video disc to the signal record more than 80; In the present embodiment, the thickness of this recording layer is 30nm, and with the germanium of atomic percent 90 as major component, the chromium of atomic percent 10 is as minor component, for example describes.
The thickness in this reflection horizon 32 is 80nm～200nm, but and reflected light, and major component is a silver, and comprise that one is used to improve first minor component of the reflectivity in this reflection horizon 32, one is used to improve second minor component of the corrosion resistivity in this reflection horizon 32, and the 3rd minor component that is used to improve the physical strength in this reflection horizon 32, wherein, this first minor component can be palladium, copper, platinum, and/or the alloy of above-mentioned any two above metals formation, and the highest addition is 3.0 atomic percent, exceed this scope, the reflectivity in this reflection horizon will improve and reduce with addition, and minimum addition then fixes on 0.01 atomic percent; This second minor component can be scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, and/or the alloy of above-mentioned any two above elements formation, and addition must be higher than 0.01 atomic percent, just be enough to manifest its effect, can not exceed simultaneously 2.0 atomic percent, to avoid that reflectivity is caused bad influence; The 3rd minor component can be barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, and/or the potpourri that forms of above-mentioned any two above elements, and the highest addition is 2.0 atomic percent, to avoid because of excessive concentration, produce precipitate, minimum addition then fixes on 0.01 atomic percent; In the present embodiment, be to be the silver alloy of 200nm with thickness, and add the platinum of atomic percent 1.2, the copper of atomic percent 0.3, the scandium of atomic percent 0.1, the nickel of atomic percent 0.2, for example describes.
This writes record laser (wavelength 405nm is following) (not shown) is to inject this optical record medium from these substrate 2 bottom surfaces, and at the interface zone generation local material composition reacting condition of this recording layer 31 with this reflection horizon 32, and form silver-colored germanium solid solution alloy, make reflectivity improve, with measuring point, and be used for record, preservation data as the digital signals source.In the present embodiment, this writes the record Wavelength of Laser is 405nm, and forms silver-colored germanium solid solution alloy at the interface in this recording layer 31 and this reflection horizon 32, the difference of reflectivity before and after reaction is reached more than 45%, with the measuring point as the digital signals source.
Principle of the present invention is to utilize can to absorb this material of writing record laser and constitute this recording layer 31, and the material with high reflectance constitutes this reflection horizon 32, write record laser when this and inject this optical record medium, the material of this recording layer 31 of irradiated regional area will mix mutually with the material in this reflection horizon 32 on the interface in this recording layer 31 and this reflection horizon 32, and compared to other by this do not write the record laser radiation the zone, reflectivity significantly increases, thereby by irradiation this is write record laser and makes reflectivity produce the characteristic of difference in height, can form as digital signals source measuring point.
This recording layer 31 of the optical record medium of Write-only one time type of the present invention is to select the inorganic material that can adopt the dc sputtering technology growth for use, therefore, on processing procedure (manufacturing process), can significantly reduce production costs, and can enhance productivity; In addition, because the material behavior in this reflection horizon 32, therefore can cooperate with this recording layer 31 on the one hand to form measuring point, can be used for reflecting this reproducing laser on the other hand, therefore only need a rete, can receive double effects, so can reduce the number of plies of the plated film of this optical record medium, make the production process minimization of product, and can significantly reduce production costs, and can enhance productivity.
Compared to existing traditional with the optical record medium of organic dyestuff as the material of recording layer, optical record medium of the present invention is with the material of inorganic material as this recording layer 31, thereby be more suitable for as the recording medium that develops high power capacity, and has high-weatherability, the serviceable life of this optical record medium be can prolong, and harsh use or storage condition are applicable to; In addition, recording layer compared to present existing optical record medium is to select the inorganic material that need adopt radio frequency or reactive sputter technology growth for use, this recording layer 31 of optical record medium of the present invention is to select the inorganic material that can adopt the dc sputtering technology growth for use, so can reduce production costs, and can enhance productivity; Moreover can match with this recording layer in this reflection horizon of the present invention to reach the effect of record, and the effect of this reproducing laser of performance reflection simultaneously, so can reduce the number of plies of this plated film, make the production process minimization of product, and can significantly reduce production costs, and enhance productivity.
Second preferred embodiment of the optical record medium of Write-only one time type of the present invention, duplicate haply in this first preferred embodiment, its difference only is that this second preferred embodiment is with the material of pure germanium as this recording layer 31, and can reduce and the required energy of this reflection horizon 32 reactions, and can shorten the reaction time, and can promote the writing rate of data.
The 3rd preferred embodiment of the optical record medium of Write-only one time type of the present invention, duplicate haply in this first preferred embodiment, its difference only is that the major component of this recording layer of the 3rd preferred embodiment is a silicon, the major component in this reflection horizon is an aluminium, and when this writes record laser when injecting this optical record medium, to produce local material composition reacting condition and form the sial soluble solids at the interface zone of this recording layer 31, and can be used as the measuring point in digital signals source with this reflection horizon 32.
The 4th preferred embodiment of the optical record medium of Write-only one time type of the present invention, duplicate haply in this first preferred embodiment, its difference only is that the major component of this recording layer of the 4th preferred embodiment is an antimony, and when this writes record laser when injecting this optical record medium, to produce local material composition reacting condition and form antimony silver solid solution alloy at the interface zone of this recording layer 31, and can be used as the measuring point in digital signals source with this reflection horizon 32.
See also shown in Figure 3, be the explanation optical record medium the 5th preferred embodiment of the present invention synoptic diagram.The 5th preferred embodiment of the optical record medium of Write-only one time type of the present invention, it comprises a plate base 2, and one deck is formed at the plated film 3 on this substrate 2.
This substrate 2 is with material transparent, and for example glass, polycarbonate, or formation such as polymethylmethacrylate in the present embodiment, are to be that example describes with glass.
This plated film 3 comprises the one dielectric layer 33, one deck recording layer 31 that are stacked and placed in regular turn on this substrate 2, and one deck is used to reflect this reproducing laser reflection horizon 32.
The thickness of this dielectric layer 33 is to be 50nm～300nm, and to have the material of high index of refraction, for example: zinc sulphide-silicon dioxide, aluminium oxide, zirconia, titanium nitride, or formation such as silit, but and the course of deviation light; In the present embodiment, being is that zinc sulphide-silicon dioxide of 150nm is that example describes with thickness.
The thickness of this recording layer 31 is 10nm～100nm, and major component can be germanium, silicon, antimony, and/or the potpourri optionally formed of these elements, and comprise a minor component that constitutes by other elements, and the atomic percent of major component content needs more than 80, just can reach the standard of blue light video disc to the signal record; In the present embodiment, the thickness of this recording layer is 30nm, and with the germanium of atomic percent 90 as major component, the chromium of atomic percent 10 is as minor component, for example describes.
The thickness in this reflection horizon 32 is 80nm～200nm, but and reflected light, and major component is a silver, and comprise that one is used to improve first minor component of the reflectivity in this reflection horizon 32, one is used to improve second minor component of the corrosion resistivity in this reflection horizon 32, and the 3rd minor component that is used to improve the physical strength in this reflection horizon 32, wherein, this first minor component can be palladium, copper, platinum, and/or the alloy of above-mentioned any two above metals formation, and the highest addition is 3.0 atomic percent, exceed this scope, the reflectivity in this reflection horizon will improve and reduce with addition, and minimum addition then fixes on 0.01 atomic percent; This second minor component can be scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, and/or the alloy of above-mentioned any two above elements formation, and addition must be higher than 0.01 atomic percent, just be enough to manifest its effect, can not exceed simultaneously 2.0 atomic percent, to avoid that reflectivity is caused bad influence; The 3rd minor component can be barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, and/or the potpourri that forms of above-mentioned any two above elements, and the highest addition is 2.0 atomic percent, to avoid because of excessive concentration, produce precipitate, minimum addition then fixes on 0.01 atomic percent; In the present embodiment, be to be the silver alloy of 200nm with thickness, and add the platinum of atomic percent 1.2, the copper of atomic percent 0.3, the scandium of atomic percent 0.1, the nickel of atomic percent 0.2, for example describes.
This writes record laser (wavelength 405nm is following) (not shown) is to inject this optical record medium from these substrate 2 bottom surfaces, and vertically injected this recording layer 31 by these dielectric layer 33 deviations, and at the interface zone generation local material composition reacting condition of this recording layer 31 with this reflection horizon 32, and form the solid solution alloy of silver-colored germanium, make reflectivity improve, with measuring point, and be used for record, preservation data as the digital signals source.In the present embodiment, this writes the record Wavelength of Laser is 405nm, and forms silver-colored germanium solid solution alloy at the interface in this recording layer 31 and this reflection horizon 32, the difference of reflectivity before and after reaction is reached more than 45%, with the measuring point as the digital signals source.
See also shown in Figure 4, be the explanation optical record medium the 6th preferred embodiment of the present invention synoptic diagram.The 6th preferred embodiment of the optical record medium of Write-only one time type of the present invention; duplicate haply in the 5th preferred embodiment; its difference only is that this plated film of the 6th preferred embodiment comprises also that one deck is stacked and placed on and is used to the protective seam 34 of avoiding this reflection horizon 32 to wreck on this reflection horizon 32; and in this preferred embodiment, the material of this protective seam 34 is light-hardening resins.
See also shown in Figure 5, be the explanation optical record medium the 7th preferred embodiment of the present invention synoptic diagram.The 7th preferred embodiment of the optical record medium of Write-only one time type of the present invention, it comprises a plate base 4, and one deck is formed at the plated film 5 on this substrate 4.
This substrate 4 is with material transparent, for example glass, polycarbonate, or formation such as polymethylmethacrylate; In the present embodiment, being is that example describes with glass.
This plated film 5 comprises one deck recording layer 51, and one deck be stacked and placed on this substrate 4 and this recording layer between and be used to reflect the reflection horizon 52 of this reproducing laser.
The thickness of this recording layer 31 is to be 10nm～100nm, and major component can be germanium, silicon, antimony, and/or the potpourri optionally formed of these elements, and comprise a minor component that constitutes by other elements, and the atomic percent of major component content needs more than 80, just can reach the standard of blue light video disc to the signal record; In the present embodiment, the thickness of this recording layer is to be 30nm, and with the germanium of atomic percent 95 as major component, the chromium of atomic percent 5 is as minor component, for example describes.
The thickness in this reflection horizon 32 is 80nm～200nm, but and reflected light, and major component is a silver, and comprise that one is used to improve first minor component of the reflectivity in this reflection horizon 32, one is used to improve second minor component of the corrosion resistivity in this reflection horizon 32, and the 3rd minor component that is used to improve the physical strength in this reflection horizon 32, wherein, this first minor component can be palladium, copper, platinum, and/or the alloy of above-mentioned any two above metals formation, and the highest addition is 3.0 atomic percent, exceed this scope, the reflectivity in this reflection horizon will improve and reduce with addition, and minimum addition then fixes on 0.01 atomic percent; This second minor component can be scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, and/or the alloy of above-mentioned any two above elements formation, and addition must be higher than 0.01 atomic percent, just be enough to manifest its effect, can not exceed simultaneously 2.0 atomic percent, to avoid that reflectivity is caused bad influence; The 3rd minor component can be barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, and/or the potpourri that forms of above-mentioned any two above elements, and the highest addition is 2.0 atomic percent, to avoid because of excessive concentration, produce precipitate, minimum addition then fixes on 0.01 atomic percent; In the present embodiment, be to be the silver alloy of 200nm with thickness, and add the platinum of atomic percent 0.9, the copper of atomic percent 0.9, and the gold of atomic percent 1, for example describes.
This writes record laser (wavelength 405nm is following) (not shown) is to inject this optical record medium from these plated film 5 end faces, and the interface zone in this recording layer 51 and this reflection horizon 52 produces local material composition reacting condition and forms silver-colored germanium solid solution alloy, make reflectivity improve, with measuring point, and be used for record, preservation data as the digital signals source.In the present embodiment, this writes the record Wavelength of Laser is to be 405nm, and forms silver-colored germanium solid solution alloy at the interface in this recording layer 51 and this reflection horizon 52, the difference of reflectivity before and after reaction is reached more than 45%, with the measuring point as the digital signals source.
The 7th preferred embodiment provides the optical record medium of another type.
See also shown in Figure 6, be the explanation optical record medium the 8th preferred embodiment of the present invention synoptic diagram.The 8th preferred embodiment of the optical record medium of Write-only one time type of the present invention duplicates haply in the 7th preferred embodiment, and its difference only is that this plated film of the 8th preferred embodiment comprises that also one deck is stacked and placed on the dielectric layer 53 on this recording layer 51.
The thickness of this dielectric layer 53 is to be 50nm～300nm, and to have the material of high index of refraction, for example: zinc sulphide-silicon dioxide, aluminium oxide, zirconia, titanium nitride, or formation such as silit, but and the course of deviation light; In the present embodiment, being is that zinc sulphide-silicon dioxide of 150nm is that example describes with thickness.
This writes record laser is to inject this optical record medium from these plated film 5 end faces, and vertically injected this recording layer 51 by these dielectric layer 53 deviations, and the interface zone in this recording layer 51 and this reflection horizon 52 produces local material composition reacting condition and forms silver-colored germanium solid solution alloy, make reflectivity improve, with measuring point as the digital signals source.
See also shown in Figure 7, be the explanation optical record medium the 9th preferred embodiment of the present invention synoptic diagram.The 9th preferred embodiment of the optical record medium of Write-only one time type of the present invention; duplicate haply in the 8th preferred embodiment; its difference only is that this plated film of the 9th preferred embodiment comprises also that one deck is stacked and placed on and is used to the transparent protective seam 54 of avoiding this dielectric layer 53 to wreck on this dielectric layer 53; and in this preferred embodiment, the material of this protective seam 54 is light-hardening resins.
In addition, among above-mentioned the 5th, 6,7,8,9 embodiment, the material of this recording layer 31,51 can also be pure germanium; Or with the major component of silicon replacement germanium as this recording layer 31,51, and with the major component of aluminium replacement silver as this reflection horizon 32,52, and when this writes record laser when injecting this optical record medium, interface zone in this recording layer 31,51 and this reflection horizon 32,52 produces local material to be formed reacting condition and forms the sial soluble solids, with the measuring point as the digital signals source; Or with the major component of antimony replacement germanium as this recording layer 31,51, and when this writes record laser when injecting this optical record medium, interface zone in this recording layer 31,51 and this reflection horizon 32,52 produces local material to be formed reacting condition and forms antimony silver solid solution alloy, with the measuring point as the digital signals source.
In addition, the upper surface of this substrate more can form and be provided with the groove that most directing lights are advanced, yet because the design of this majority groove is known by industry, is therefore no longer given unnecessary details at this.
In sum, the optical record medium of Write-only one time type of the present invention, be select for use can the dc sputtering technology growth inorganic material as the material of this recording layer 31,51, can prolong the serviceable life of this optical record medium on the one hand, and be applicable to harsh use or storage condition; On the other hand, can also significantly reduce production costs, and enhance productivity, can reach purpose of the present invention and effect really.
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 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, in every case be the 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 (9)
1, a kind of optical record medium of Write-only one time type, can write record laser and match and be used for record material with one, afterwards, match with a regeneration laser again and can read record material, the optical record medium of this Write-only one time type comprises a plate base, and one deck is formed at the plated film on this substrate; It is characterized in that:
This plated film comprises one deck recording layer, reaches the reflection horizon that one deck is connected with this recording layer and is used to reflect this reproducing laser;
The major component of this recording layer is to be selected from germanium, antimony, silicon, or the combination of these elements, the major component in this reflection horizon is to be selected from aluminium, copper, silver, gold, or the combination of these elements, when this writes record laser when injecting this plated film, can produce local material at the interface zone in this recording layer and this reflection horizon and form reacting condition, make reflectivity improve, and form a measuring point as the digital signals source.
2, the optical record medium of Write-only one time type as claimed in claim 1, the major component that it is characterized in that wherein said recording layer are the antimony of atomic percent more than 80, and the major component in this reflection horizon is a silver.
3, the optical record medium of Write-only one time type as claimed in claim 1, the major component that it is characterized in that wherein said recording layer are the silicon of atomic percent more than 80, and the major component in this reflection horizon is an aluminium.
4, the optical record medium of Write-only one time type as claimed in claim 1, the recording layer and the reflection horizon that it is characterized in that wherein said plated film are to be stacked and placed in regular turn on this substrate, this writes record laser is to inject this optical record medium from this substrate bottom surface, and the material of this substrate is to be selected from glass, polycarbonate, or polymethylmethacrylate, the thickness of this recording layer is to be 10nm～100nm, major component is the germanium of atomic percent more than 80, the thickness in this reflection horizon is to be 80nm～200nm, and major component is a silver, and comprise an atomic percent 0.01～3.0 and be used to improve first minor component of the reflectivity in this reflection horizon, one atomic percent 0.01～2.0 and being used to improves second minor component of the corrosion resistivity in this reflection horizon, and an atomic percent 0.01～2.0 and being used to improves the 3rd minor component of the physical strength in this reflection horizon, and this first minor component is to be selected from palladium, copper, platinum, or these combination, this second minor component is to be selected from scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, or these combination, the 3rd minor component is to be selected from barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, or these combination.
5, the optical record medium of Write-only one time type as claimed in claim 1, it is characterized in that wherein said plated film comprises that also one deck is stacked and placed on the dielectric layer on this substrate, and this recording layer and this reflection horizon are to be stacked and placed in regular turn on this dielectric layer, this writes record laser is to inject this optical record medium from this substrate bottom surface, and vertically injected this recording layer by this dielectric layer deviation, and the material of this substrate is to be selected from glass, polycarbonate, or polymethylmethacrylate, the thickness of this dielectric layer is to be 50nm～300nm, material is to be selected from zinc sulphide-silicon dioxide, aluminium oxide, zirconia, titanium nitride, or silit, the thickness of this recording layer is to be 10nm～100nm, major component is the germanium of atomic percent more than 80, the thickness in this reflection horizon is to be 80nm～200nm, and major component is a silver, and comprise an atomic percent 0.01～3.0 and be used to improve first minor component of the reflectivity in this reflection horizon, one atomic percent 0.01～2.0 and being used to improves second minor component of the corrosion resistivity in this reflection horizon, and an atomic percent 0.01～2.0 and being used to improves the 3rd minor component of the physical strength in this reflection horizon, and this first minor component is to be selected from palladium, copper, platinum, or these combination, this second minor component is to be selected from scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, or these combination, the 3rd minor component is to be selected from barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, or these combination.
6, the optical record medium of Write-only one time type as claimed in claim 5 it is characterized in that wherein said plated film comprises also that one deck is stacked and placed on and is used to the protective seam of avoiding this reflection horizon to wreck on this reflection horizon, and the material of this protective seam is a light-hardening resin.
7, the optical record medium of Write-only one time type as claimed in claim 1, the reflection horizon and the recording layer that it is characterized in that wherein said plated film are to be stacked and placed in regular turn on this substrate, this writes record laser is to inject this optical record medium from this plated film end face, and the material of this substrate is to be selected from glass, polycarbonate, or polymethylmethacrylate, the thickness of this recording layer is to be 10nm～100nm, major component is the germanium of atomic percent more than 80, the thickness in this reflection horizon is to be 80nm～200nm, and major component is to be silver, and comprise an atomic percent 0.01～3.0 and be used to improve first minor component of the reflectivity in this reflection horizon, one atomic percent 0.01～2.0 and being used to improves second minor component of the corrosion resistivity in this reflection horizon, and an atomic percent 0.01～2.0 and being used to improves the 3rd minor component of the physical strength in this reflection horizon, and this first minor component is to be selected from palladium, copper, platinum, or these a combination, this second minor component is to be selected from scandium, beryllium, aluminium, titanium, chromium, zinc, nickel, or these combination, the 3rd minor component is to be selected from barium, scandium, silicon, titanium, indium, germanium, zinc, bismuth, or these combination.
8, the optical record medium of Write-only one time type as claimed in claim 7, it is characterized in that wherein said plated film comprises that also one deck is stacked and placed on the dielectric layer on this recording layer, this writes record laser is to inject this optical record medium from this plated film end face, and vertically injected this recording layer by this dielectric layer deviation, and the thickness of this dielectric layer is 50nm～300nm, material is to be selected from zinc sulphide-silicon dioxide, aluminium oxide, zirconia, titanium nitride, or silit.
9, the optical record medium of Write-only one time type as claimed in claim 8; it is characterized in that wherein said plated film comprises also that one deck is stacked and placed on and is used to the transparent protective seam of avoiding this dielectric layer to wreck on this dielectric layer, and the material of this protective seam is a light-hardening resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710090266A CN100580783C (en) | 2007-01-24 | 2007-04-17 | Optical recording media for writing only once |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710002636 | 2007-01-24 | ||
| CN200710002636.X | 2007-01-24 | ||
| CN200710090266A CN100580783C (en) | 2007-01-24 | 2007-04-17 | Optical recording media for writing only once |
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| Publication Number | Publication Date |
|---|---|
| CN101231858A CN101231858A (en) | 2008-07-30 |
| CN100580783C true CN100580783C (en) | 2010-01-13 |
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| CN200710090266A Expired - Fee Related CN100580783C (en) | 2007-01-24 | 2007-04-17 | Optical recording media for writing only once |
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| CN102368386B (en) * | 2011-11-03 | 2014-12-24 | 黄力华 | Novel ceramic digital optical disc |
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