Title:
【発明の名称】光ディスクの製造方法
Document Type and Number:
Japanese Patent JP3006199
Kind Code:
B2
Abstract:
In a process for producing optical disks comprising the steps of subjecting the photoresist layer (3) on a substrate (1) formed of silicon, quartz, glass or a metal to light exposure, developing and etching treatments to obtain a stamper (6) and then duplicating an information pattern for an optical disk from the stamper (6) obtained above to a transparent substrate by using a UV curable resin to prepare a replicated substrate of an optical disk, a large number of stampers (6) can be prepared in a short time by conducting the light exposure (7) either by contacting the mask side surface of a substrate (1) provided with a photomask having an information pattern for an optical disk to the photoresist side surface of said substrate having the photoresist layer (3) or by noncontact projection, and a rapid replication of large quantities of replicated substrates becomes possible by using a large number of stampers (6) thus prepared.
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Inventors:
Nobuyoshi Horigo
Yoshinori Miyamura
Yumiko Anzai
Keizo Kato
Hiroshi Shiraishi
Yoshinori Miyamura
Yumiko Anzai
Keizo Kato
Hiroshi Shiraishi
Application Number:
JP22269291A
Publication Date:
February 07, 2000
Filing Date:
September 03, 1991
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
B29C33/38; B29D17/00; G11B7/26; B29L17/00; (IPC1-7): G11B7/26; B29C33/38
Domestic Patent References:
| JP1251451A | ||||
| JP1188332A | ||||
| JP224848A | ||||
| JP254447A |
Attorney, Agent or Firm:
Yasuo Sakuta