Method for manufacturing glass substrate of information...

Details Method for manufacturing glass substrate of information... Method for manufacturing glass substrate of information...

2006-11-28

2006-11-28

Vincent, Sean (Department: 1731)

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

C065S031000, C065S061000

Reexamination Certificate

active

07140203

ABSTRACT:
Provided is a method for manufacturing a glass substrate for an information recording medium, which is advantageous in that oozing of an alkali and deformation of a texture are suppressed. The glass substrate is chemically reinforced, and a texture is formed in the glass substrate, and then treated with a neutral or alkaline aqueous solution. In the texture forming step, the surface of the glass substrate is etched in a depth of 0.5 to 10 nm.

REFERENCES:
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patent: 6134918 (2000-10-01), Eto et al.
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patent: 6553788 (2003-04-01), Ikeda et al.
patent: 6782717 (2004-08-01), Saito et al.
patent: 6899943 (2005-05-01), Ikeda et al.
patent: 2003/0079500 (2003-05-01), Umeyama
patent: 2003/0110803 (2003-06-01), Saito et al.
patent: 2005/0013048 (2005-01-01), Yamamoto et al.

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