CN1154544A - Method for manufacturing replica stamper - Google Patents
Method for manufacturing replica stamper Download PDFInfo
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- CN1154544A CN1154544A CN 95117510 CN95117510A CN1154544A CN 1154544 A CN1154544 A CN 1154544A CN 95117510 CN95117510 CN 95117510 CN 95117510 A CN95117510 A CN 95117510A CN 1154544 A CN1154544 A CN 1154544A
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- pressing mold
- separating layer
- main pressing
- bed course
- replica stamper
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Abstract
A method for forming a replica stamper for use in mass producing an optical disk, wherein the optical disk has a plurality of tracks arranged spirally or concentrically, and each of the tracks includes a recess and a protrusion for recording information signals thereon, comprises the steps of: (a) preparing a master stamper having a top surface and a flat bottom surface, wherein the top surface of the master stamper includes a plurality of tracks corresponding to the plurality of tracks of the optical disk; (b) depositing a buffer layer on the top surface of the master stamper; (c) forming a replica stamper on top of the buffer layer; (d) disengaging the master stamper from the buffer layer and the replica stamper; and (e) removing the buffer layer from the replica stamper.
Description
The present invention relates to make the method for CD, particularly form the method for replica stamper, this pressing mold is used for making CD.
In 1F, the schematic section figure shows that provides is made the method for the prior art of pressing mold at Figure 1A, and this pressing mold is used to make CD.As known, the process of making pressing mold can be a preparation substrate 10, and shown in Figure 1A, the most handy anti-chemistry of substrate soaks the glass that melts and makes.Substrate 10 has end face and bottom surface 12 and 14, and end face and bottom surface are flat and are parallel to each other that the centrifugal cladding process of first separating layer, 20 usefulness spinning is formed on the end face 12 of substrate 10, and this first separating layer with photoresist, the compound of water soluble (CO) polymers or ionization makes.
In next step, the 20 usefulness laser beam recording methods of first separating layer are by the imitated predetermined configuration that is patterned into, to make it to form the separating layer 30 by imitated composition, shown in Figure 1B.Imitated separating layer 30 comprises a plurality of depressions 40 and projection 42.In addition, a kind of spraying technology of second separating layer, 50 usefulness and being formed uniformly on the top of imitated separating layer 30, second separating layer 50 is to make with gold (Au) or silver (Ag) usually and the thickness that has is 500 to 1500 dusts (), shown in Fig. 1 C.
In an inferior step, the method of a kind of nonelectrolyte coating of metal level 60 usefulness and being formed on second separating layer 50, these metal level 60 usefulness light metals for example make and the thickness that has is 200 to 500 microns (μ m) by nickel (Ni), shown in Fig. 1 D, metal level 60 is used as pressing mold to make it to be used to make CD.
Then, imitated separating layer 30 and substrate 10 are separated from second separating layer 50 and metal level 60, shown in Fig. 1 E.
After this, second separating layer 50 is removed from metal level 60, and shown in Fig. 1 F, therefore the pressing mold that stays is used for making CD.
The manufacturing step of above-mentioned pressing mold, as Figure 1A to shown in the 1F, contain the laser beam recording process, this pressing mold manufacturing step comprises the step that forms first separating layer, and first separating layer of imitated composition forms predetermined configuration and slough first separating layer final the separation.Therefore, these complicated processes make that the reproducibility, reliability and the output aspect that obtain to require are inconvenient.
Therefore, the objective of the invention is to propose a kind of method that forms replica stamper, this method is simple and can be applied in a large amount of productions of CD.
Another object of the present invention is to propose a kind of method that forms replica stamper, and this pressing mold can provide improved reproducibility, reliability and ratio defective product.
According to the present invention, a kind of method that is used for making replica stamper has been proposed, this pressing mold is used for a large amount of productions of CD, wherein, CD has the vestige of many screw arrangement or arranged concentric, every vestige has depression and projection so that recording information signal thereon, the step that this method comprises is: (a) the main pressing mold of preparation tool end face and planar base surface, wherein the end face of main pressing mold comprises many vestiges, many vestiges on main pressing mold are corresponding to many vestiges on the CD, and every vestige is provided with depression and projection; (b) on the whole top of main pressing mold, deposit bed course; (c) on the bed course top, form replica stamper; (d) separate the main pressing mold of disengagement with replica stamper from bed course; (e) remove bed course from the replica stamper top.
That is to say, the present invention proposes to make a kind of method of replica stamper, this replica stamper is used for producing in a large number CD, wherein CD has many vestiges that distribute or distribute with one heart spirally, every vestige has depression and protruding to make it to be used for recording information signal thereon, and the step of this method comprises:
(a) preparation has the main pressing mold of the bottom surface of end face peace, and wherein, the end face of main pressing mold comprises many vestiges, and many vestiges on main pressing mold are corresponding to many vestiges on the CD, and every vestige is provided with a depression and a projection;
(b) on the whole top of main pressing mold, deposit bed course;
(c) on the top of bed course, form replica stamper;
(d) main pressing mold is separated from bed course and replica stamper;
(e) remove bed course from the top of replica stamper.
Wherein, the step that comprises of the step (a) of the main pressing mold of described preparation is:
(a1) preparation has flat top surface and planar base surface substrate;
(a2) on the end face of substrate, form first separating layer;
(a3) imitated composition first separating layer is predetermined configuration, and wherein, predetermined configuration comprises many vestiges of main pressing mold, and this vestige is corresponding to many vestiges on the CD;
(a4) deposition has second separating layer of uniform thickness on the separating layer top of imitated composition;
(a5) on second separating layer top, metal level is set;
(a6) separate separating layer and the substrate of copying composition from second separating layer and metal level;
(a7) dissolve second separating layer to make it to form main pressing mold from metal level.
Wherein, bed course is made with silver.
Wherein, bed course is made of gold,
Wherein, form bed course with spraying method.
Wherein, replica stamper is made with chromium.
Wherein, replica stamper is made with nickel.
Wherein, replica stamper forms with the nonelectrolyte coating process.
Wherein, by means of the use of solvent, main pressing mold is separated from bed course and replica stamper.
Wherein, so that being dissolved into, hydrogen peroxide prepares this solvent in the ammoniacal liquor.
Become clearer in the description of above and other objects of the present invention and feature general preferred embodiment in conjunction with the drawings.Wherein,
Figure 1A represents the schematic cross sectional view of the manufacturing step of art methods to 1F, and this method is used to make pressing mold;
Fig. 2 A represents that to 2E the schematic cross sectional view of the manufacturing step of the inventive method, this method are to make replica stamper.
To shown in the 2E, show the cut-away view of signal of the manufacturing step of the inventive method as Fig. 2 A, this method is used to make replica stamper.The new method of making replica stamper is the main pressing mold 100 of preparation, shown in Fig. 2 A, this main pressing mold is made with nickel (Ni), chromium (Cr) or polycarbonate (PC) and is had end face and bottom surface 102 and 104, wherein, end face 102 has many vestiges 107, vestige is to arrange spirally or arrange with one heart, and bottom surface 104 is planes.Main pressing mold 100 is to make a kind of pressing mold with art methods, such as using said method.Every vestige 107 comprises meticulous depression 106 and projection 108, and what it should be noted that is that meticulous depression and projection are respectively corresponding to depression on the CD and projection.
Shown in Fig. 2 B, bed course 100 usefulness spraying methods and being formed on the end face 102 of main pressing mold 100, this bed course metal, for example silver (Ag) or gold (Au) are made and the thickness that has is 500-1500 dust ().
Shown in Fig. 2 C, the method for replica stamper 120 usefulness nonelectrolyte coatings is formed on the whole surface of bed course 110 with covering, this replica stamper nickel, and for example Ni or Cr make.The thickness of replica stamper 120 is 200 to 500 microns (μ m) scopes.
With reference to figure 2D, replica stamper 120 and bed course thereon 110 are separated from main pressing mold 100.Then, bed course 110 is also removed from replica stamper 120.So the replica stamper 120 of formation includes many depressions 122 and the projection 124 of respective number, wherein many on the replica stamper 120 depressions 122 and the corresponding projection of number be respectively with main pressing mold 100 on many projectioies 108 and depression 106 corresponding to.
By means of repeating above-mentioned manufacture process, another replica stamper can form from main pressing mold.
Come comparison with the art methods of making pressing mold, the method for the present invention that is used for making replica stamper has been saved the manufacturing step of many difficulties, such as, the recording process of laser beam, therefore the manufacturing of whole pressing mold has been simplified, and has improved reproducibility, reliability.In addition, another replica stamper can easily repeat said process and be manufactured, has reduced identical whole cost and ratio defective product has also improved.
Though the preferred embodiment that the present invention only relates to determine is described, other improvement change does not all exceed spirit of the present invention and category, and is described as following claim.
Claims (10)
1, makes a kind of method of replica stamper, this replica stamper is used for producing in a large number CD, wherein CD has many vestiges that distribute or distribute with one heart spirally, and every vestige has depression and protruding to make it to be used for recording information signal thereon, and the step of this method comprises:
(a) preparation has the main pressing mold of the bottom surface of end face peace, and wherein, the end face of main pressing mold comprises many vestiges, and many vestiges on main pressing mold are corresponding to many vestiges on the CD, and every vestige is provided with a depression and a projection;
(b) on the whole top of main pressing mold, deposit bed course;
(c) on the top of bed course, form replica stamper;
(d) main pressing mold is separated from bed course and replica stamper;
(e) remove bed course from the top of replica stamper.
2, the step that comprises of the step (a) of the main pressing mold of the method for claim 1, wherein described preparation is:
(a1) preparation has flat top surface and planar base surface substrate;
(a2) on the end face of substrate, form first separating layer;
(a3) imitated composition first separating layer is predetermined configuration, and wherein, predetermined configuration comprises many vestiges of main pressing mold, and this vestige is corresponding to many vestiges on the CD;
(a4) deposition has second separating layer of uniform thickness on the separating layer top of imitated composition;
(a5) on second separating layer top, metal level is set;
(a6) separate separating layer and the substrate of copying composition from second separating layer and metal level;
(a7) dissolve second separating layer to make it to form main pressing mold from metal level.
3, the method for claim 1, wherein bed course is made with silver.
4, the method for claim 1, wherein bed course is made of gold,
5, the method for claim 1, wherein form bed course with spraying method.
6, the method for claim 1, wherein replica stamper is made with chromium.
7, the method for claim 1, wherein replica stamper is made with nickel.
8, the method for claim 1, wherein replica stamper forms with the nonelectrolyte coating process.
9, the method for claim 1, wherein by means of the use of solvent, main pressing mold is separated from bed course and replica stamper.
10, method as claimed in claim 9 wherein, prepares this solvent so that hydrogen peroxide is dissolved in the ammoniacal liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95117510 CN1154544A (en) | 1994-12-03 | 1995-11-14 | Method for manufacturing replica stamper |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR32690/94 | 1994-12-03 | ||
| CN 95117510 CN1154544A (en) | 1994-12-03 | 1995-11-14 | Method for manufacturing replica stamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1154544A true CN1154544A (en) | 1997-07-16 |
Family
ID=5081290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95117510 Pending CN1154544A (en) | 1994-12-03 | 1995-11-14 | Method for manufacturing replica stamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1154544A (en) |
-
1995
- 1995-11-14 CN CN 95117510 patent/CN1154544A/en active Pending
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |