JPS5782236A - Mother mold of duplicated metallic mold for information recording carrier - Google Patents
Mother mold of duplicated metallic mold for information recording carrierInfo
- Publication number
- JPS5782236A JPS5782236A JP12262480A JP12262480A JPS5782236A JP S5782236 A JPS5782236 A JP S5782236A JP 12262480 A JP12262480 A JP 12262480A JP 12262480 A JP12262480 A JP 12262480A JP S5782236 A JPS5782236 A JP S5782236A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- mother
- mold
- duplicated
- information recording
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 6
- 229910052802 copper Inorganic materials 0.000 abstract 6
- 239000010949 copper Substances 0.000 abstract 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- 239000002344 surface layer Substances 0.000 abstract 3
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 abstract 2
- 230000006866 deterioration Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000004544 sputter deposition Methods 0.000 abstract 1
- 238000007740 vapor deposition Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
PURPOSE:To reduce the deterioration of the surface at transfer and reproduction, by providing a copper or copper alloy on the surface, in a master and a mother such as video disc. CONSTITUTION:On the surface of a recording mother disc consisting of a glass plate 1 and a residual resist film 2, copper or copper alloy having 200-5,000Angstrom thickness is stuck by vapor deposition or sputtering. Next, a copper layer 9 is electrically deposited as far as >=2mu by the electrotyping method and nickel 10 is formed thereon in several hundreds mu thickness. After the master 10 having the copper surface layer 9 is peeled off with immersion to potassium dichromate solution, a copper 11 is electrodeposited further on the surface layer 9. The backing 12 is made with nickel electrotyping for peeling, allowing to form a mother 12 with a copper surface layer 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12262480A JPS5782236A (en) | 1980-09-03 | 1980-09-03 | Mother mold of duplicated metallic mold for information recording carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12262480A JPS5782236A (en) | 1980-09-03 | 1980-09-03 | Mother mold of duplicated metallic mold for information recording carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5782236A true JPS5782236A (en) | 1982-05-22 |
Family
ID=14840562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12262480A Pending JPS5782236A (en) | 1980-09-03 | 1980-09-03 | Mother mold of duplicated metallic mold for information recording carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5782236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0772357A (en) * | 1994-09-07 | 1995-03-17 | Furukawa Electric Co Ltd:The | Planar optical fiber unit |
| KR100381609B1 (en) * | 1999-07-26 | 2003-04-26 | 주식회사 에스알 | Making method of metallic lable plate and metallic lable plate |
| US7632628B2 (en) * | 2003-04-18 | 2009-12-15 | Pioneer Corporation | Stamper and method for production thereof |
-
1980
- 1980-09-03 JP JP12262480A patent/JPS5782236A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| IEEE TRANSACTION ON CONSUMER ELECTRONICS=1976US * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0772357A (en) * | 1994-09-07 | 1995-03-17 | Furukawa Electric Co Ltd:The | Planar optical fiber unit |
| KR100381609B1 (en) * | 1999-07-26 | 2003-04-26 | 주식회사 에스알 | Making method of metallic lable plate and metallic lable plate |
| US7632628B2 (en) * | 2003-04-18 | 2009-12-15 | Pioneer Corporation | Stamper and method for production thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0293662A3 (en) | A process for making a thin film metal alloy magnetic recording disk with a hydrogenated carbon overcoat | |
| EP0391258A3 (en) | Magnetic recording medium and method for its production | |
| GB1513851A (en) | Method of depositing a thin film of magnetic iron-silicon upon a substrate and product thereof | |
| JPH0513045B2 (en) | ||
| EP0373793A3 (en) | Lift-off process for patterning shields in thin magnetic recording heads | |
| JPS5782236A (en) | Mother mold of duplicated metallic mold for information recording carrier | |
| JPS5850635A (en) | Stamper and production thereof | |
| NO812053L (en) | PROCEDURE FOR ELECTROLYSE AA PROVIDE LAYER OF NICKEL ALLOYS ON A SUBSTRATE. | |
| JPH05339774A (en) | Production of stamper | |
| JPS56159849A (en) | High density information recording carrier using resin cured by ultraviolet ray irradiation | |
| JPS5724022A (en) | Production of magnetic recording substance | |
| JPS56124118A (en) | Magnetic recording material | |
| JP2916542B2 (en) | Electroforming method of electroforming original plate and electroforming original plate | |
| JPH0336021A (en) | High hard stamper and manufacture thereof | |
| JPS61221392A (en) | Stamper | |
| JPS551678A (en) | Information recording medium | |
| JPS6079351A (en) | Manufacture of stamper | |
| JPS60103194A (en) | Stamper and its production | |
| JPS59218646A (en) | Production of mold | |
| JPS5771517A (en) | Magnetic recording medium | |
| JPS5771519A (en) | Magnetic recording medium | |
| JPH04139632A (en) | Production of stamper for forming information recording medium | |
| JP2770597B2 (en) | Method for manufacturing master stamper and optical disk master container | |
| JPS59173288A (en) | Manufacture of electroformed mold | |
| AU555354B2 (en) | Video disc mastering |