JPS57130203A - Master disk - Google Patents
Master diskInfo
- Publication number
- JPS57130203A JPS57130203A JP1468581A JP1468581A JPS57130203A JP S57130203 A JPS57130203 A JP S57130203A JP 1468581 A JP1468581 A JP 1468581A JP 1468581 A JP1468581 A JP 1468581A JP S57130203 A JPS57130203 A JP S57130203A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- disk
- master disk
- peeled
- ultraviolet
- 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.)
- Granted
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
PURPOSE: To facilitate the peeling of the resin cured by the ultraviolet-irradiation of a replica disk without reference to the kind of the resin, by decreasing adhesive strength by forming an inert layer on the surface of a master disk.
CONSTITUTION: On a glass base plate 1, photoresist layers 2 are formed to produce an original disk A and after nickel 3 is electrocast on its surface for form a female mold, this master disk B is peeled. The surface of the peeled master disk B is coated with nitric acid to form an inert layer 3a made of an oxidized film and its surface is further coated with resin 4 cured by ultraviolet irradiation; after a transparent plate made of synthetic resin is stuck to the surface, the side of the transparent plate 5 is irradiated with ultraviolet rays to permit the resin 4 to cure, and a replica disk C made of said resin 4 is peeled from the master disk 3.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1468581A JPS57130203A (en) | 1981-02-02 | 1981-02-02 | Master disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1468581A JPS57130203A (en) | 1981-02-02 | 1981-02-02 | Master disk |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57130203A true JPS57130203A (en) | 1982-08-12 |
JPS6346881B2 JPS6346881B2 (en) | 1988-09-19 |
Family
ID=11868055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1468581A Granted JPS57130203A (en) | 1981-02-02 | 1981-02-02 | Master disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57130203A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5112025A (en) * | 1990-02-22 | 1992-05-12 | Tdk Corporation | Molds having wear resistant release coatings |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52117102A (en) * | 1976-03-29 | 1977-10-01 | Koodo Kk | Method of processing information memory stamper |
JPS54138406A (en) * | 1978-04-17 | 1979-10-26 | Philips Nv | Information disk and method of fabricating same |
-
1981
- 1981-02-02 JP JP1468581A patent/JPS57130203A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52117102A (en) * | 1976-03-29 | 1977-10-01 | Koodo Kk | Method of processing information memory stamper |
JPS54138406A (en) * | 1978-04-17 | 1979-10-26 | Philips Nv | Information disk and method of fabricating same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5112025A (en) * | 1990-02-22 | 1992-05-12 | Tdk Corporation | Molds having wear resistant release coatings |
Also Published As
Publication number | Publication date |
---|---|
JPS6346881B2 (en) | 1988-09-19 |
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