CN1722260A

CN1722260A - Double-sided type CD-R and its manufacturing method

Info

Publication number: CN1722260A
Application number: CNA2004100636846A
Authority: CN
Inventors: 赵贤文
Original assignee: Prodisc Technology Inc
Current assignee: Prodisc Technology Inc
Priority date: 2004-07-16
Filing date: 2004-07-16
Publication date: 2006-01-18
Anticipated expiration: 2024-07-16
Also published as: CN100452201C

Abstract

The invention relates to a double-faced disk and it's making method. The double-faced disk comprises a placode, a first moiety reflective layer and a second moiety reflective layer. The placode has a first surface and a second surface, which have groove structure of disk format; first moiety reflective layer is positioned on first surface; while second moiety reflective layer is positioned on second surface.

Description

Double-sided type CD-R and manufacture method thereof

Technical field

The present invention is about a kind of double-sided type CD-R and manufacture method thereof, especially in regard to a kind of formed double-sided type CD-R of substrate with two-sided ditch rail form.

Background technology

Common now optical record medium comprises cd cd (Compact disc) and Video CD DVD (Digital versatile disc), wherein, the specification that the format standard of CD is put down in writing according to the standard book of each color, and according to different inner structure, CD family includes the CD-ROM (CD-Read only memory) that only can read, can write once the CD-R (CD-Recordable) and the CD-RW (CD-Rewritable) of rewritable etc.

Known discs is made flow process, include steps such as molding substrate and sputter plural layer material, wherein the making of substrate is made the template that the resin injection has had the ditch rail with ejection forming technique, below will be known template construct flow process simple declaration.

Template (stamper) is made up of nickel usually, before making, template needs to form earlier female dish (masterdisc), form master module (master stamper), caster (motherstamper) and subtemplate (child stamper) in regular turn by female dish afterwards, subtemplate then can directly use for discs volume production ejection formation afterwards.

The production process of female dish at first is formed at photoresist layer on the glass substrate, scribbles the substrate of photoresist layer afterwards via the laser light imprinting, carries out mechanical processing procedure, with developing process the signal video picture of imprinting is come out and finishes the female dish with hole, concavo-convex hole signal; Then, sputter one metal level on female dish, be generally a nickel film, making hole, signal hole is metallic state, so that as the electrode of general conduction, cast type and use and can be used for power supply, afterwards, be about to metallized female dish and carry out the electroforming processing procedure, on the nickel film, form a nickel electroforming film, thickness is thickened to the specification of holding that meets the ejaculator mould, again this is peeled off by nickel film and the film formed film of nickel electroforming and photoresist layer and finish master module; Next, then form a nickel electroplating film on master module, form caster via peeling off the back, the manufacturing of subtemplate then utilizes caster to finish as template and according to the manufacturing process of caster according to sample.

Because forming, known substrate utilize ejection forming technique to form by mounted split pattern, have one restricted for the record capacity of data, yet arriving along with the digital multimedia epoch, the discs of high power capacity undeniablely has become the trend of present development, therefore how can develop the discs that high data logging capacity, be one of important topic for current making optical storage media in fact.

Summary of the invention

Because above-mentioned problem, purpose of the present invention is for providing a kind of double-sided type CD-R and manufacture method thereof with high information storage capacity.

For reaching above-mentioned purpose, comprise a substrate, one first semi-reflective layer and one second semi-reflective layer according to double-sided type CD-R of the present invention.Among the present invention, substrate has a first surface and a second surface, and first surface and second surface have the trench structure of a disk format; First semi-reflective layer is located on the first surface of substrate; Second semi-reflective layer is located on the second surface of substrate.

In addition, the present invention also provides a kind of double-sided type CD-R manufacture method to comprise a molding substrate program, a reflection horizon forms program and diaphragm formation program.

The molding substrate program is penetrated by a match plate pattern tool and forms a substrate with two-sided ditch rail, and the ditch rail structure that penetrates the formation disk format simultaneously in a first surface and a second surface of substrate; The reflection horizon forms program respectively at forming one first semi-reflective layer and one second semi-reflective layer on the first surface of substrate and the second surface; At last, diaphragm formation program is formed at least one diaphragm on first semi-reflective layer and second semi-reflective layer.

From the above, because of being constituted according to the substrate of double-sided type CD-R of the present invention by two-sided ditch rail structure, therefore compared to the known formed substrate of single face ditch rail, increased information storage capacity effectively, the data logging mode of arranging in pairs or groups different simultaneously more can make this double-sided type CD-R be compatible with now the cd resource of difference in functionality and read.

Description of drawings

Fig. 1 is the synoptic diagram of the structure of the double-sided type CD-R of preferred embodiment of the present invention;

The synoptic diagram that Fig. 2 amplifies for the part of the double-sided type CD-R of preferred embodiment of the present invention;

Fig. 3 is the synoptic diagram of the structure of the double-sided type CD-R of another preferred embodiment of the present invention;

Fig. 4 is the synoptic diagram of the flow process of the double-sided type CD-R manufacture method of preferred embodiment of the present invention;

Fig. 5 is the synoptic diagram of the double-sided type CD-R manufacture method of preferred embodiment of the present invention;

Fig. 6 is the synoptic diagram of the flow process of the double-sided type CD-R manufacture method of another preferred embodiment of the present invention.

Fig. 7 is the synoptic diagram of the double-sided type CD-R manufacture method of another preferred embodiment of the present invention.

The component symbol explanation:

1 double-sided type CD-R

11 substrates

111 first surfaces

112 second surfaces

12 first semi-reflective layers

13 second semi-reflective layers

14 first recording layers

15 second recording layers

P01 molding substrate program

The P02 reflection horizon forms program

P02 ' recording layer forms program

The P03 diaphragm forms program

1 ' double-sided type CD-R

2 diaphragms

Embodiment

Hereinafter with reference to relevant drawings, double-sided type CD-R and manufacture method thereof according to preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference marks.

Please refer to shown in Figure 1ly, comprise a substrate 11, one first semi-reflective layer 12 and one second semi-reflective layer 13 according to the double-sided type CD-R 1 of preferred embodiment of the present invention.Wherein, substrate has a first surface 111 and a second surface 112, the first semi-reflective layers 12 are located on the first surface 111 of substrate 11, and second semi-reflective layer 13 is located on the second surface 112 of substrate 11.

In the present embodiment, the first surface 111 and the second surface 112 of substrate 11 has the trench structure of a CD (CD) form, and be provided with semi-reflective layer structure thereon, the material of this first semi-reflective layer 12 and second semi-reflective layer 13 is silver-colored titanium alloy, sputter, is read and write with the record material to different layers to allow the data reading-writing laser light part penetrate compared to the thin structure of total reflection layer.At this moment, in the trench structure of first surface 111 and second surface 112 for being pre-formed depression (pit).

From the above; as shown in Figure 2; in the present embodiment; the thickness of substrate 11 is about 1.2mm; and can be divided into 8cm and two kinds of forms of 12cm (respectively as Fig. 2 label 1 ' and label 1) according to the difference of its disc diameter; in addition; this double-sided type CD-R 1 more comprises at least one diaphragm 2; it is formed on first semi-reflective layer 12 and second semi-reflective layer 13; the material of diaphragm 2 is constituted by the sclerosis materials such as light coincidence beginning agent of tool abrasion resistance; thereby can prolong the life-span that stores data, in addition, this diaphragm 2 also can be made of UV cured glue.

In addition, please refer to shown in Figure 3ly, according to the double-sided type CD-R 1 of another preferred embodiment of the present invention, its composition, structure, material and configuration mode are as mentioned above, so repeat no more, only, in the present embodiment, the first surface 111 of substrate 11 can more comprise one first recording layer 14, it is formed between the first surface 111 and first semi-reflective layer 12, in addition, the second surface 112 of substrate 11 also can more comprise one second recording layer 15, and is formed between the second surface 112 and second semi-reflective layer 13.

Again, above-mentioned in one's power first recording layer 14 and the material of second recording layer 15 can include organic dye, cracking takes place after via laser radiation in it, and formation can write CD-R discs once, or can comprise metallics, its via laser radiation after undergoing phase transition, and form the CD-RW discs that can repeat to write.

Comprehensively above-mentioned, in the composition structure of the double-sided type CD-R 1 of the embodiment of the invention, the data logging mode of the first surface 111 of substrate 11 can be prerecording ditch groove (as shown in Figure 1), form the data formats of CD-ROM, or be the data logging mode with the recording layer, formation can write once CD-R or the data formats (as shown in Figure 3) of the CD-RW of rewritable, and the data logging mode of the second surface 112 of substrate 11 also can be prerecording ditch groove or increase recording layer writes data with laser light recording mode, learn that from the above mentioned the first surface of this double-sided type CD-R 1 its substrate 11 111 may be selected to be prerecording ditch groove with second surface 112 and increases the discs that one of them structure of recording layer is formed the data with different recording mode.

The following foundation double-sided type CD-R manufacture method that specifies according to preferred embodiment of the present invention shown in Figure 4.

Please refer to shown in Figure 4ly, according to double-sided type CD-R manufacture method of the present invention, comprise a molding substrate program P01, a reflection horizon forms program P02 and a diaphragm forms program P03.

In the present embodiment; as shown in Figure 5; molding substrate program P01 is penetrated by a match plate pattern tool and forms a substrate 11 with two-sided ditch rail; and a first surface 111 and a second surface 112 in substrate 11 penetrate the ditch rail structure that forms disk format simultaneously; afterwards; form program P02 respectively at forming one first semi-reflective layer 12 and one second semi-reflective layer 13 on first surface 111 and the second surface 112 by the reflection horizon; at last, forming program P03 by diaphragm is formed at diaphragm 2 respectively on first semi-reflective layer 12 and second semi-reflective layer 13.

Again, in another embodiment, its manufacture method as mentioned above, so repeat no more, wherein, in between molding substrate program P01 and reflection horizon formation program P02, more comprise a recording layer and form program P02 ' (as shown in Figure 6), please refer to Fig. 7 again, this recording layer forms program P02 ', can between the first surface 111 of substrate 11 and first semi-reflective layer 12, form one first recording layer 14, in addition, also also can between the second surface 112 of substrate 11 and second semi-reflective layer 13, form one second recording layer 15, again, the material of this first recording layer 14 and second recording layer 15 be an organic dyestuff and a metallics at least one of them, form the organic dyestuff recording layer that can write once and the phase change recording layer of rewritable respectively.

Comprehensively above-mentioned, the first surface 111 of substrate 11 and second surface 112 may be selected to be prerecording ditch groove and increase the recording layer data logging mode of one of them at least, its manufacture method is respectively at sputter semi-reflective layer (as shown in Figure 5) on the substrate 11 of prerecording ditch groove, and forms recording layer and semi-reflective layer (as shown in Figure 7) on substrate 11 in regular turn.

From the above; the thickness of substrate 11 is about 1.2mm and the different disc diameter of arranging in pairs or groups can form the double-sided type CD-R 1 of about 8cm and two kinds of forms of about 12cm; in addition, the material of diaphragm 2 is that light overlaps beginning agent or UV cured glue and is formed on first semi-reflective layer 12 and second semi-reflective layer 13 in the mode of rotary coating.

Comprehensively above-mentioned, owing to utilize double-sided die to penetrate the substrate that formation one has two-sided ditch rail according to double-sided type CD-R of the present invention and manufacture method thereof, and the ditch rail structure that this two-sided ditch rail is a disk format, therefore, this double-sided type CD-R is compared to the known formed discs of single face substrate, increased the capacity of data storage effectively, and the data logging mode of arranging in pairs or groups different, for example form CD-ROM, CD-R or the recording mode of CD-RW, more can this a slice double-sided type CD-R be compatible with the CD read and write system of difference in functionality.

The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the described claim scope its equivalent modifications of carrying out or change.

Claims

1. a double-sided type CD-R is characterized in that, comprises:

One substrate, it has a first surface and a second surface, and this first surface and this second surface have the trench structure of disk format;

One first semi-reflective layer, it is located on this first surface; And

One second semi-reflective layer, it is located on this second surface.

2. double-sided type CD-R as claimed in claim 1 is characterized in that, more comprises:

At least one diaphragm, it is formed on this first semi-reflective layer and this second semi-reflective layer.

3. double-sided type CD-R as claimed in claim 1, wherein this first surface more comprises one first recording layer, and this first recording layer is formed between this first surface and this first semi-reflective layer.

4. double-sided type CD-R as claimed in claim 1, wherein this second surface more comprises one second recording layer, and this second recording layer is formed between this second surface and this second semi-reflective layer.

5. double-sided type CD-R as claimed in claim 2, wherein the material of this diaphragm is one to have the sclerosis material of abrasion resistance or be a UV cured glue.

6. double-sided type CD-R as claimed in claim 5, wherein this sclerosis material is that a light overlaps the beginning agent.

7. a double-sided type CD-R manufacture method is characterized in that, comprises:

One molding substrate program, it is penetrated by a match plate pattern tool and forms a substrate with two-sided ditch rail, the ditch rail structure that penetrates the formation disk format simultaneously in a first surface and a second surface of this substrate;

One reflection horizon forms program, and it is respectively at forming one first semi-reflective layer and one second semi-reflective layer on this first surface and this second surface; And

One diaphragm forms program, and it is formed at least one diaphragm on this first semi-reflective layer and this second semi-reflective layer.

8. double-sided type CD-R manufacture method as claimed in claim 7, wherein this first surface more comprises one first recording layer, and it is formed between this first surface and this first semi-reflective layer.

9. double-sided type CD-R manufacture method as claimed in claim 7, wherein this second surface more comprises one second recording layer, and it is formed between this second surface and this second semi-reflective layer.

10. double-sided type CD-R manufacture method as claimed in claim 7, wherein this diaphragm utilizes the rotary coating mode to be formed on this first semi-reflective layer and this second semi-reflective layer.

11. double-sided type CD-R manufacture method as claimed in claim 7, wherein this diaphragm is one to have the sclerosis material of abrasion resistance or be a UV cured glue.

12. double-sided type CD-R manufacture method as claimed in claim 11, wherein this sclerosis material is that a light overlaps the beginning agent.