Method of forming stable images in electron beam writable glass compositions
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United States of America Patent
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Sep 8, 1992
Grant Date -
N/A
app pub date -
Jun 23, 1989
filing date -
Jun 23, 1989
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Expired
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Abstract
A silicate glass article comprising an amount of SiO.sub.2 effective as a network former and, at least one surface of said article having a substantially continuous silver and hydration content over its area, effective to render said surface darkenable upon exposure to electron beam radiation but substantially not thermoplastic, said article having been substantially darkened by electron beam irradiation over at least a portion of at least one surface thereof, and said article having geometric characteristics suitable for functioning as a photomask reticle, optical disk or similar archival storage medium.
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