JPH0342236A - Stamper for duplicating disk substrate - Google Patents
Stamper for duplicating disk substrateInfo
- Publication number
- JPH0342236A JPH0342236A JP17735489A JP17735489A JPH0342236A JP H0342236 A JPH0342236 A JP H0342236A JP 17735489 A JP17735489 A JP 17735489A JP 17735489 A JP17735489 A JP 17735489A JP H0342236 A JPH0342236 A JP H0342236A
- Authority
- JP
- Japan
- Prior art keywords
- stamper
- disk substrate
- duplicating
- center
- peripheral
- 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
- 239000000758 substrates Substances 0.000 title abstract 7
- 239000007789 gases Substances 0.000 abstract 3
- 230000002093 peripheral Effects 0.000 abstract 3
- 239000011347 resins Substances 0.000 abstract 3
- 229920005989 resins Polymers 0.000 abstract 3
- 239000003570 air Substances 0.000 abstract 2
- 230000001629 suppression Effects 0.000 abstract 1
Abstract
PURPOSE: To obtain a stamper capable of duplicating a disk substrate of high quality by providing a piercing hole having a specific diameter for sending a gas for releasing in the vicinity of the center of the stamper.
CONSTITUTION: A piercing hole 7 for sending a gas for releasing at the time of release in a disk substrate duplicating process is formed to the center of a stamper 1. The proper size of the piecing hole 7 is 0.01 - 1mm, pref., 0.05 - 0.1mm. By this method, when a resin substrate + cured UV resin is released from the stamper in the disk substrate duplicating process, the release gas is sent in through said piercing hole and release is performed from the center to the outer peripheral part of the stamper and, therefore, the generation of the broken piece of a 2P resin at the outer peripheral and thereof is suppressed and, even if the broken piece is generated, since an air stream going to the outer peripheral part from the center is formed by air pressure, said broken piece becomes hard to bond to the disk substrate and the disk substrate of high quality can be duplicated.
COPYRIGHT: (C)1991,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17735489A JPH0342236A (en) | 1989-07-10 | 1989-07-10 | Stamper for duplicating disk substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17735489A JPH0342236A (en) | 1989-07-10 | 1989-07-10 | Stamper for duplicating disk substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0342236A true JPH0342236A (en) | 1991-02-22 |
Family
ID=16029502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17735489A Pending JPH0342236A (en) | 1989-07-10 | 1989-07-10 | Stamper for duplicating disk substrate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100078143A1 (en) * | 2008-09-29 | 2010-04-01 | Kabushiki Kaisha Toshiba | Method for manufacturing a duplicating stamper |
-
1989
- 1989-07-10 JP JP17735489A patent/JPH0342236A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100078143A1 (en) * | 2008-09-29 | 2010-04-01 | Kabushiki Kaisha Toshiba | Method for manufacturing a duplicating stamper |
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