CN100449623C - Optical disk base board, opticaldisk and its manufacturing method - Google Patents
Optical disk base board, opticaldisk and its manufacturing method Download PDFInfo
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- CN100449623C CN100449623C CNB2003101029742A CN200310102974A CN100449623C CN 100449623 C CN100449623 C CN 100449623C CN B2003101029742 A CNB2003101029742 A CN B2003101029742A CN 200310102974 A CN200310102974 A CN 200310102974A CN 100449623 C CN100449623 C CN 100449623C
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- discs
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- substrate
- reflection horizon
- recording layer
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Abstract
The present invention relates to an optical disc base plate with a center hole which comprises a primary area and a secondary area, wherein the primary area which is used for holding and circularly arranged at the outer side of the center hole is discoid, and has a primary upper surface and a primary lower surface; the secondary area which is used for forming an information record area and circularly arranged at the outer side of the primary area is also discoid, and has a secondary upper surface and a secondary lower surface. In addition, the primary lower surface and the secondary lower surface are all positioned on an identical plane, and the primary upper surface is higher than the secondary upper surface. The present invention also discloses an optical disc to which the optical disc base plate is applied and a manufacturing method thereof.
Description
Technical field
The present invention relates to a kind of substrate, relate in particular to a kind of substrate that is applied to discs.
Background technology
Discs can store the data of multiple form, comprises image data, computer digit image file and normal words file.Discs is that light of new generation stores in the market storing media the most easily, applicable scope suitable extensively, application such as books collection, data backup, electronic publishing, image data store such as being used as, individual's medical treatment record management.
The structure of the discs substrate 500 of prior art such as Fig. 5 A, Fig. 5 A are the side views of prior art discs substrate 500.With wherein a kind of DVD-R discs of DVD discs is example, and this discs substrate 500 has a dianegative 501, recording layer 502, reflection horizon 503 and protective seam 504 can be stacked gradually to dianegative 501.Fig. 5 B is the vertical view of prior art discs substrate 500.Clamping center pit 505 arranged outside have clamp area 506, and then there is interblock 507 in the form of a ring in these clamp area 506 outsides.The diameter of discs substrate 500 is 120mm, and the diameter of center pit is about 15mm, and the scope of clamp area external diameter is about 15.5～48mm.
Please refer to Fig. 6, it is the side view of prior art discs 50.Discs substrate 500 its gauge thickness are 0.6mm, but discs 50 also has a compensating plate 600 usually, and the substrate 500 of its size and discs is identical.Diameter is 120mm, and also having a diameter is the 15mm center pit, and these compensating plate 600 thickness are 0.6mm, so that the thickness of finished product discs reaches 1.2mm.So, can increase the intensity of discs, make when discs is rotated in CD-ROM drive, can not make the problem that the discs torsional deformation causes CD-ROM drive to read because of high speed rotating.
Fig. 7 places the synoptic diagram of CD-ROM drive for discs.When CD-ROM drive read discs 50, the CD-ROM drive of drive unit utilized the clamp area 506 of CD chuck 701 chucking optical disks.Discs 50 can be sandwiched in 702 of CD chuck 701 and CD rotating disks, and by CD rotating disk drive motor with CD chuck 701 and 702 rotations of CD rotating disk.The laser read head 703 of CD-ROM drive and being maintained fixed apart from d of discs substrate, the laser of CD-ROM drive is returned via the reflective layer reflects in this substrate, can read the information in the discs 50.
Yet in making the process of discs, need extra step with this compensating plate 600 and 500 pressings of discs substrate or stick together.This extra step not only can influence the discs substrate, makes the production qualification rate reduce, and causes the discs quality to descend.In addition, need extra injection moulding machine, can make that more the manufacturing time of discs and manufacturing cost significantly increase to make compensating plate.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of discs substrate and discs.This discs need not used the compensating plate identical with size of substrate, and rotation the time still keeps flat state in CD-ROM drive, can not twist or tilt, and makes CD-ROM drive can read correct numerical data in this discs.
Another object of the present invention is to provide a kind of manufacture method of discs substrate, can improve the discs quality so that the production qualification rate rises.
Another purpose of the present invention is to provide a kind of manufacture method of discs substrate, can reduce machinery and equipment required when producing, and reduces the manufacturing time and the manufacturing cost of discs.
For reaching above-mentioned purpose, discs substrate of the present invention has a center pit, and this discs substrate comprises: a first area, for clamping, be located on the outside of this center pit, and for discoid, have one first upper surface and one first lower surface; And a second area, for forming interblock usefulness, be located on this outside, first area, for discoid, have one second upper surface and one second lower surface, the thickness of this second area is 0.6mm; Wherein, this first lower surface and this second lower surface are positioned at same plane, and this first upper surface is than this second upper surface height.
The present invention also discloses a kind of manufacture method of discs substrate.This manufacture of substrates adopts one-body molded mode, makes this substrate after injection mo(u)lding, and formation as above-mentioned discs substrate center are thicker, and the thin configuration in the outside.
According to discs substrate of the present invention, discs and manufacture method thereof, when its discs places CD-ROM drive, the clamp area thickness of the discs that the CD chuck of CD-ROM drive clamps is still identical with the thickness of general optical disk, so discs still keeps flat state when rotating in CD-ROM drive, can not twist or tilt.And the distance of the laser read head of CD-ROM drive and discs substrate still remains unchanged, so the laser of CD-ROM drive returns via the reflective layer reflects in the discs, and the discs of its result and prior art is identical, can read identical information.Simultaneously, because the interblock of discs substrate can not be affected, make the quality of discs be improved, and the qualification rate of increase production, and significantly reduce because discs is volume required, employed material also thereby reduce makes the production cost of discs reduce.
Description of drawings
Figure 1A is the vertical view of discs substrate.
Figure 1B is the side view of discs substrate.
Fig. 1 C is a side view of using the DVD-R discs of discs substrate of the present invention.
Fig. 1 D is a side view of using the phase change optical disk sheet of discs substrate of the present invention.
Fig. 2 is the synoptic diagram that discs with discs substrate places CD-ROM drive.
Fig. 3 A is used for the process flow diagram that the DVD-R discs is made for discs substrate of the present invention.
Fig. 3 B is used for the synoptic diagram that the DVD-R discs is made for discs substrate of the present invention.
Fig. 4 A is second kind of process flow diagram of making the method for discs substrate.
Fig. 4 B is second kind of synoptic diagram of making the method for discs substrate.
Fig. 5 A is the side view of prior art discs substrate.
Fig. 5 B is the vertical view of prior art discs substrate.
It is the side view of prior art discs for Fig. 6.
Fig. 7 is that discs with prior art is placed in the synoptic diagram in the CD-ROM drive.
Description of reference numerals:
100 discs substrates
101 center pits
103 recording layers
1,031 first dielectric layers
1032 recording layers
1,033 second dielectric layers
1034 heat dissipating layers
104 reflection horizon
105 protective seams
11 first areas
111 first upper surfaces
112 first lower surfaces
12 second areas
121 second upper surfaces
122 second lower surfaces
20 discs
30 discs
301 make the motherboard step
302 injection molded steps
303 form the recording layer step
304 form the reflection horizon step
305 form the protective seam step
401 make the base plate step
402 make the compensating plate step
403 number of assembling steps
43 the 3rd zones
44 the 4th zones
50 discs
500 discs substrates
501 dianegatives
502 recording layers
503 reflection horizon
504 protective seams
505 center pits
506 clamp area
507 interblocks
600 compensating plates
701 CD chucks
702 CD rotating disks
703 laser read heads
Embodiment
Hereinafter with reference to correlative type, discs substrate, discs and manufacture method thereof according to preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical Reference numeral.
Figure 1A is the vertical view of discs substrate 100, Figure 1B is the side view of discs substrate 100, this discs substrate 100, has a center pit 101, discs substrate 100 comprises: a first area 11 for clamping, is located on the outside of center pit 101, for discoid, have one first upper surface 111 and one first lower surface 112; With a second area 12, for forming interblock usefulness, be located on the outside of this first area 11, for discoid, have one second upper surface 121 and one second lower surface 122.Wherein, this first lower surface 112 and this second lower surface 122 are positioned at same plane, and this first upper surface 111 is than these second upper surface, 121 height.
The thickness of the second area 12 of discs substrate 100 only has 0.6mm, and the thickness of first area 11 is between 0.65mm to 1.6mm.Therefore it is higher that discs substrate 100 of the present invention has central authorities, and lower on every side configuration.The diameter of discs substrate 100 is 120mm, and first area 11 external diameters are 15.5mm to 48mm.
Fig. 1 C is a side view of using the DVD-R discs 20 of discs substrate 100 of the present invention.The second area 12 of discs 20 also comprises a recording layer 103, a reflection horizon 104 and a protective seam 105 among Fig. 1 C.Recording layer 103 is positioned on this second upper surface 121, is made up of dyestuff.Reflection horizon 104 is positioned on the recording layer 103, is made up of metal.Protective seam 105 is positioned on this reflection horizon 104.
Above-mentioned discs substrate 100 can be applicable in the different discs.Its recording layer is not limited to one deck, also can be applicable to have the discs of several record layers.
With reference to figure 1D, be the phase change optical disk 30 of using discs substrate 100 of the present invention, it comprises: one first dielectric layer 1031, a recording layer 1032, one second dielectric layer 1033, a heat dissipating layer 1034, a reflection horizon 104 and a protective seam 105.First dielectric layer 1031 is positioned on second upper surface 121 of second area 12, is made up of dielectric materials.Recording layer 1032 is positioned on first dielectric layer 1031, is made up of alloy.Second dielectric layer 1033 is positioned on the recording layer 1032, is made up of dielectric materials.Heat dissipating layer 1034 is positioned on second dielectric layer 1033, is made up of metal.Reflection horizon 104 is positioned on the heat dissipating layer 1034, is made up of metal.Protective seam 105 is positioned on the reflection horizon 104.
Then please refer to Fig. 2, Fig. 2 is the synoptic diagram that discs 20 with discs substrate 100 places CD-ROM drive.When CD-ROM drive reads discs 20, CD-ROM drive utilizes the first area 11 of CD chuck 701 chucking optical disk sheets 20, simultaneously discs 20 can be sandwiched in CD chuck 701 and 702 of CD rotating disks, and rotates with CD chuck 701 and CD rotating disk 702 by CD rotating disk drive motor.
By among Fig. 2 as can be known, the first area 11 of the CD chuck 701 chucking optical disk sheets of this CD-ROM drive, the thickness of this first area 11 is identical with the thickness of the clamp area of prior art discs.Therefore, discs still keeps flat state when rotating in CD-ROM drive, can not twist or tilt.And when the laser read head 703 of this CD-ROM drive and still remaining unchanged apart from d of discs 20, the laser of CD-ROM drive reflected via the reflection horizon 104 of discs 20, its result was identical with general discs, can read identical information.
Fig. 3 A is used for the process flow diagram that the DVD-R discs is made for discs substrate 100 of the present invention, and its step comprises: make motherboard step 301, injection molded step 302, form recording layer step 303, form reflection horizon step 304, form protective seam step 305.
Fig. 3 B is used for the synoptic diagram that the DVD-R discs is made for discs substrate 100 of the present invention.Injection molded method that it adopts is used injection moulding machine, and high pressure makes it be solidified into discs substrate 100 after the resin of fusion is injected in motherboard again.The technology of making the DVD-R CD with prior art is example, second area 12 coating dyestuff or phase-transition materials can be formed recording layer 103.On recording layer 103, plate layer of aluminum or silver or its alloy via electroplating machine again, with as reflection horizon 104.The reflection horizon 104 of sputter on discs is key components of reading of data, but reflection horizon 104 is very easily scraped damage, peeled off or oxidation.Need at last again protective seam 105 to be formed on the reflection horizon 104.Reflection horizon 104 utilizes the irradiation of ultraviolet ray (UV) after coating protection glue, and with drying adhesive, protection glue has just become thin film.So promptly producing can be for the DVD-R discs finished product of CD-ROM drive use.
The phase change optical disk piece making method of discs substrate 100 of the present invention, its step comprises: make motherboard step, injection molded step, form the first dielectric layer step, form the recording layer step, form the second dielectric layer step, form the heat dissipating layer step, form the reflection horizon step, form the protective seam step.So promptly producing can be for the phase change optical disk sheet finished product of CD-ROM drive use.
The manufacture method of another discs substrate 100 of the present invention then is described, with reference to figure 4A and Fig. 4 B.Fig. 4 A is the process flow diagram of the manufacture method of another discs substrate, and Fig. 4 B is the synoptic diagram of the manufacture method of another discs substrate.The manufacture method of another discs substrate 100 comprises step: make the step 401 of base plate 41, the step 402 of making compensating plate 42 and the number of assembling steps 403 of assembling plate 41 and compensating plate 42.Base plate 41 has 43 and 1 the 4th zone 44, one the 3rd zone, and wherein the 3rd zone 43 is identical with the thickness in the 4th zone 44, and the 4th zone 44 is used for forming interblock.The size of compensating plate 42 is 43 identical with the 3rd zone, and number of assembling steps 403 is compensating plate 42 is fitted or to be pressed on the 3rd zone 43 of base plate 41, makes thickness after the assembling between 0.65mm to 1.6mm.
The above just for, but not be restricted person.Those skilled in the art all can carry out the modification of equivalence according to the embodiment of the invention described above, and do not break away from its spirit and category.For example, discs substrate of the present invention can be applied to the discs that various dimension compensation sheets are equally fitted, as DVD-Video, DVD-ROM, DVD-RW, DVD+RW, DVD+R and DVD-RAM.So any spirit and category that does not break away from the present invention, and to its equivalent modifications of carrying out or change, all should be included in the protection domain of appending claims.
Claims (15)
1. a discs substrate has a center pit, and this discs substrate comprises:
One first area for clamping, is located on the outside of this center pit, for discoid, has one first upper surface and one first lower surface; And
One second area, use for forming interblock, be located on the outside of this first area, for discoid, have one second upper surface and one second lower surface, the thickness of this second area is 0.6mm, and wherein this first lower surface and this second lower surface are positioned at same plane, and this first upper surface is than this second upper surface height.
2. discs substrate as claimed in claim 1, wherein
The thickness of this first area is between 0.65mm to 1.6mm, and external diameter is between 15.5mm to 48mm; And
The diameter of this second area is 120mm.
3. discs substrate as claimed in claim 1, wherein this discs substrate is to form with the injection molding method.
4. discs comprises:
One discs substrate has a center pit, and this discs substrate comprises:
One first area for clamping, is located on the outside of this center pit, for discoid, has one first upper surface and one first lower surface; And
One second area is located on the outside of this first area, for discoid, has one second upper surface and one second lower surface, and the thickness of this second area is 0.6mm; Wherein, this first lower surface and this second lower surface are positioned at same plane, and this first upper surface is than this second upper surface height;
And
One interblock is positioned on this second upper surface of this second area.
5. discs as claimed in claim 4, wherein this interblock comprises:
At least one recording layer is positioned on this second upper surface of this second area;
One reflection horizon is positioned on this at least one recording layer; And
One protective seam is positioned on this reflection horizon.
6. discs as claimed in claim 5, wherein
This at least one recording layer is made up of dyestuff; And
This reflection horizon is made up of metal.
7. discs as claimed in claim 4, wherein this interblock comprises:
One first dielectric layer is positioned on this second upper surface of this second area;
One recording layer is positioned on this first dielectric layer;
One second dielectric layer is positioned on this recording layer;
One heat dissipating layer is positioned on this second dielectric layer;
One reflection horizon is positioned on this heat dissipating layer; And
One protective seam is positioned on this reflection horizon.
8. discs as claimed in claim 7, wherein
This first dielectric layer and this second dielectric layer are made up of dielectric materials;
This recording layer is made up of alloy;
This heat dissipating layer is made up of metal; And
This reflection horizon is made up of metal.
9. the manufacture method of a discs, its step comprises:
Make a discs substrate, this discs substrate has a center pit, and it comprises:
One first area for clamping, is located on the outside of this center pit, for discoid, has one first upper surface and one first lower surface; And
One second area is located on the outside of this first area, for discoid, has one second upper surface and one second lower surface; Wherein, this first lower surface and this second lower surface are positioned at same plane, and this first upper surface is than this second upper surface height;
And
Form an interblock on this second upper surface of this second area.
10. the manufacture method of discs as claimed in claim 9, wherein this discs substrate is with the injection molded manufactured.
11. the manufacture method of discs as claimed in claim 10, wherein this interblock also comprises:
At least one recording layer is positioned on this second upper surface of this second area;
One reflection horizon is positioned on this at least one recording layer; And
One protective seam is positioned on this reflection horizon.
12. the manufacture method of discs as claimed in claim 10, wherein this interblock also comprises:
One first dielectric layer is positioned on this second upper surface of this second area;
One recording layer is positioned on this first dielectric layer;
One second dielectric layer is positioned on this recording layer;
One heat dissipating layer is positioned on this second dielectric layer;
One reflection horizon is positioned on this heat dissipating layer; And
One protective seam is positioned on this reflection horizon.
13. the manufacture method of discs as claimed in claim 9, wherein the manufacturing step of this discs substrate comprises:
Make a base plate, this base plate has one the 3rd zone and one the 4th zone, and wherein the 3rd zone is identical with this four-range thickness, and the 4th zone is used for forming interblock;
Make a compensating plate, the size of this compensating plate is identical with the 3rd zone; And
Assemble this compensating plate to the 3rd zone of this base plate.
14. the manufacture method of discs as claimed in claim 13, wherein this interblock more comprises:
At least one recording layer is positioned on this second upper surface of this second area;
One reflection horizon is positioned on this at least one recording layer; And
One protective seam is positioned on this reflection horizon.
15. the manufacture method of discs as claimed in claim 13, wherein this interblock also comprises:
One first dielectric layer is positioned on this second upper surface of this second area;
One recording layer is positioned on this first dielectric layer;
One second dielectric layer is positioned on this recording layer;
One heat dissipating layer is positioned on this second dielectric layer;
One reflection horizon is positioned on this heat dissipating layer; And
One protective seam is positioned on this reflection horizon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101029742A CN100449623C (en) | 2003-10-31 | 2003-10-31 | Optical disk base board, opticaldisk and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101029742A CN100449623C (en) | 2003-10-31 | 2003-10-31 | Optical disk base board, opticaldisk and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1612241A CN1612241A (en) | 2005-05-04 |
| CN100449623C true CN100449623C (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101029742A Expired - Fee Related CN100449623C (en) | 2003-10-31 | 2003-10-31 | Optical disk base board, opticaldisk and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100449623C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014116194A1 (en) * | 2013-01-28 | 2014-07-31 | The Institute For Information Recording Of The National Academy Of Sciences Of Ukraine | Data readout system from optical media |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249506A (en) * | 1998-09-30 | 2000-04-05 | 株式会社Skc | Phase change optical disk |
| CN1385848A (en) * | 2001-05-14 | 2002-12-18 | Lg电子株式会社 | High-density CD recording meidum with convex side at holding area |
| WO2003028022A1 (en) * | 2001-09-26 | 2003-04-03 | Tdk Corporation | Optical recording medium |
-
2003
- 2003-10-31 CN CNB2003101029742A patent/CN100449623C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249506A (en) * | 1998-09-30 | 2000-04-05 | 株式会社Skc | Phase change optical disk |
| CN1385848A (en) * | 2001-05-14 | 2002-12-18 | Lg电子株式会社 | High-density CD recording meidum with convex side at holding area |
| WO2003028022A1 (en) * | 2001-09-26 | 2003-04-03 | Tdk Corporation | Optical recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1612241A (en) | 2005-05-04 |
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