JPS6482346A - Production of optical recording medium - Google Patents
Production of optical recording mediumInfo
- Publication number
- JPS6482346A JPS6482346A JP62239641A JP23964187A JPS6482346A JP S6482346 A JPS6482346 A JP S6482346A JP 62239641 A JP62239641 A JP 62239641A JP 23964187 A JP23964187 A JP 23964187A JP S6482346 A JPS6482346 A JP S6482346A
- Authority
- JP
- Japan
- Prior art keywords
- transparent substrates
- stuck
- sheets
- media
- angles
- 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
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
PURPOSE:To prevent the generation of cracks in dielectric layers after sticking by previously subjecting transparent substrates to an annealing treatment to specify the camber angles of two sheets of media to be stuck to each other. CONSTITUTION:The transparent substrates of the optical recording medium of a tight lamination type are previously subjected to the annealing treatment in such a manner that the camber angles of two sheets of the media to be stuck each other attain <=0.3 deg. respectively. The camber angle refers to the angle which is largest of the angles between the respective points in the transparent substrates and the horizontal direction when the transparent substrates are placed horizontal. The camber angles of two sheets of the media to be stuck to each other are, therefore, respectively decreased to <=0.3 deg. by the pretreatment of the transparent substrates. The generation of the crack is, therefore, obviated even if stresses are exerted from the outside to the dielectric layers at and under a high temp. and high humidity after the sticking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62239641A JPS6482346A (en) | 1987-09-24 | 1987-09-24 | Production of optical recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62239641A JPS6482346A (en) | 1987-09-24 | 1987-09-24 | Production of optical recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6482346A true JPS6482346A (en) | 1989-03-28 |
Family
ID=17047734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62239641A Pending JPS6482346A (en) | 1987-09-24 | 1987-09-24 | Production of optical recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6482346A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0319152A (en) * | 1989-06-16 | 1991-01-28 | Canon Inc | Manufacture of optical disk substrate and optical disk substrate |
| EP0725396A2 (en) * | 1995-01-31 | 1996-08-07 | Kabushiki Kaisha Toshiba | Optical disk and optical disk apparatus |
| KR20120054544A (en) * | 2010-11-19 | 2012-05-30 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Positive lift-off resist composition and patterning process |
-
1987
- 1987-09-24 JP JP62239641A patent/JPS6482346A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0319152A (en) * | 1989-06-16 | 1991-01-28 | Canon Inc | Manufacture of optical disk substrate and optical disk substrate |
| EP0725396A2 (en) * | 1995-01-31 | 1996-08-07 | Kabushiki Kaisha Toshiba | Optical disk and optical disk apparatus |
| EP0725396A3 (en) * | 1995-01-31 | 1997-12-17 | Kabushiki Kaisha Toshiba | Optical disk and optical disk apparatus |
| KR20120054544A (en) * | 2010-11-19 | 2012-05-30 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Positive lift-off resist composition and patterning process |
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