Method for manufacturing optical disk master, method for...

Details Method for manufacturing optical disk master, method for... Method for manufacturing optical disk master, method for...

2011-04-26

2011-04-26

Nguyen, Hoa T (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S047500, C369S116000, C430S321000, C430S030000

Reexamination Certificate

active

07933186

ABSTRACT:
A method and apparatus for manufacturing an optical disk master and an optical disk, including measuring the reflectance of laser light at each of a plurality of radius positions by applying the laser light to an optical disk master-forming substrate provided with an inorganic resist layer, the laser light having a non-recording laser power smaller than a recording sensitivity of the inorganic resist layer, producing recording power control data indicating recording laser powers in accordance with the radius positions of the optical disk master-forming substrate by using the reflectances measured, forming an exposure pattern on the inorganic resist layer by applying the laser light to the optical disk master-forming substrate on the basis of the recording power control data while the recording power is varied in accordance with the radius positions, and developing the inorganic resist layer provided with the exposure pattern so as to prepare an uneven pattern.

REFERENCES:
patent: 4451914 (1984-05-01), LaBudde et al.
patent: 7648671 (2010-01-01), Kai et al.
patent: 2005/0128926 (2005-06-01), Kai et al.
patent: 04-356744 (1992-12-01), None
patent: 2004047096 (2004-06-01), None
patent: 2004/047096 (2010-06-01), None
Japanese Office Action issued on Mar. 30, 2010, for corresponding Japanese Patent Application 2006-108843.

Affiliated with

Also associated with

Rating

Method for manufacturing optical disk master, method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing optical disk master, method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing optical disk master, method for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2695560