Method of molding a silica article

Details Method of molding a silica article Method of molding a silica article

2007-10-02

2007-10-02

Lopez, Carlos (Department: 1731)

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

C065S043000, C065S047000, C065S374130, C065S374150

Reexamination Certificate

active

10851023

ABSTRACT:
Disclosed are high temperature free-flow mold for the production of near net-shape silica articles and method for the production of near net-shape silica articles. The mold is preferably made of graphite, preferably coated with SiC on the surfaces of the mold cavity. The mold and the process use no or less refractory elastic materials than that disclosed in the prior art, and does not alter or contaminate the glass composition. The mold the process are particularly suitable for the production of high purity silica articles for use in VUV and EUV lithographic devices.

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