Optical recording substrate, optical recording medium, and...

Details Optical recording substrate, optical recording medium, and... Optical recording substrate, optical recording medium, and...

2007-03-06

2007-03-06

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Specified material

C369S275400, C369S283000, C428S064400

Reexamination Certificate

active

10490940

ABSTRACT:
A method of manufacturing an optical recording substrate, comprising the steps of:contacting the surface having pit or land/grooves of a stamper having the pit or land/grooves to an organic polymer sheet having a glass transition temperature of 120 to 190° C., a single-pass birefringence retardation of +10 nm to −10 nm and a thickness of 0.35 mm or less under reduced pressure; andthermally pressing them. According to this method, an optical recording substrate which can transfer a stamper pattern to a thin organic polymer sheet easily and thoroughly can be manufactured.

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