KR960008712A - Method for manufacturing glass substrate and photomask for optical disc manufacturing - Google Patents
Method for manufacturing glass substrate and photomask for optical disc manufacturing Download PDFInfo
- Publication number
- KR960008712A KR960008712A KR1019940019731A KR19940019731A KR960008712A KR 960008712 A KR960008712 A KR 960008712A KR 1019940019731 A KR1019940019731 A KR 1019940019731A KR 19940019731 A KR19940019731 A KR 19940019731A KR 960008712 A KR960008712 A KR 960008712A
- Authority
- KR
- South Korea
- Prior art keywords
- etching
- film
- photoresist film
- ashing
- photomask
- Prior art date
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
본 발명은 광디스크 제조용 포토마스크 및 유리기판의 제조방법에 관하여 개시한 것이다.The present invention discloses a photomask for manufacturing an optical disc and a method for manufacturing a glass substrate.
본 발명에 의한 광디스크 제조용 유리기판 및 포토마스크의 제조방법은 광디스크의 제조방법에 있어서 포토마스크의 영역별 투과율을 서로 다르게 설계하면, 감광제의 노광량을 조절할 수 있다는 점에 의해 착안된 것으로서, 레이저 컷팅법 또는 컨택트 프린팅법으로 프리포맷팅 잠상을 감광제 위에 형성시키고, 1차 엣칭과 1차 애슁(ashing) 및 2차 엣칭과 2차 애슁으로 이어지는 새로운 엣칭방법이 행하여졌다.The method for manufacturing a glass substrate and photomask for manufacturing an optical disc according to the present invention is conceived by the fact that when the transmittance for each region of the photomask is designed differently in the manufacturing method of the optical disc, the exposure amount of the photosensitive agent can be adjusted. Alternatively, a pre-formatting latent image was formed on the photosensitive agent by the contact printing method, and a new etching method was carried out, followed by primary etching and primary ashing, and secondary etching and secondary ashing.
따라서, 광디스크 유리기판의 양산은 본 발명에 의한 새로운 방법에 의해 실현 가능하며, 또한 폴리카보네이트 기판 생산을 위한 엣칭된 유리원판의 제작에도 응용이 가능한 것으로, 포토마스크와 유리기판을 제작함에 있어서 반복 엣칭 및 애슁공정에 의해 프리피트와 가이드 트랙의 깊이를 독립적으로 조절할 수 있도록 하였으며, 한 장의 원판으로 여러장의 스탬퍼를 복제할 수 있는 이점을 가질 수 있다.Therefore, the mass production of the optical disk glass substrate can be realized by the new method according to the present invention, and can also be applied to the production of the etched glass discs for the production of polycarbonate substrates. And by the ashing process to be able to independently control the depth of the prepit and the guide track, it can have the advantage of replicating multiple stampers with a single disc.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제4도는 본 발명에 의한 광디스크 제조용 포토마스크의 제조공정도.4 is a manufacturing process diagram of a photomask for manufacturing an optical disc according to the present invention.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940019731A KR100188922B1 (en) | 1994-08-10 | 1994-08-10 | Method of manufacturing glass substrate and photo mask for optical disc |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940019731A KR100188922B1 (en) | 1994-08-10 | 1994-08-10 | Method of manufacturing glass substrate and photo mask for optical disc |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960008712A true KR960008712A (en) | 1996-03-22 |
KR100188922B1 KR100188922B1 (en) | 1999-06-01 |
Family
ID=19390131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940019731A KR100188922B1 (en) | 1994-08-10 | 1994-08-10 | Method of manufacturing glass substrate and photo mask for optical disc |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100188922B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210047525A (en) * | 2019-10-22 | 2021-04-30 | 차명순 | Apparatus for Bending Grating Cross Bar having Slip Preventing Function |
-
1994
- 1994-08-10 KR KR1019940019731A patent/KR100188922B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210047525A (en) * | 2019-10-22 | 2021-04-30 | 차명순 | Apparatus for Bending Grating Cross Bar having Slip Preventing Function |
Also Published As
Publication number | Publication date |
---|---|
KR100188922B1 (en) | 1999-06-01 |
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