DURABLE TUNGSTEN-DOPED TIN-FLUOROPHOSPHATE GLASSES

Tungsten-doped tin-fluorophosphate glasses are described herein which exhibit excellent humidity resistance, thermal resistance, and have a low glass transition temperature which makes them suitable for low temperature sealing applications, such as for encapsulating electronic components. In one emb...

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Bibliographic Details
Main Authors AITKEN, BRUCE, G, KOVAL, SHARI, E, QUESADA, MARK, A
Format Patent
LanguageEnglish
French
Published 29.05.2008
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Summary:Tungsten-doped tin-fluorophosphate glasses are described herein which exhibit excellent humidity resistance, thermal resistance, and have a low glass transition temperature which makes them suitable for low temperature sealing applications, such as for encapsulating electronic components. In one embodiment, these glasses comprise 55-75 % Sn, 4-14 % P, 6-24 % O, 4-22 % F, and 0.15-15 % W on a weight percent elemental basis. L'invention concerne des verres de fluorophosphate d'étain dopés au tungstène, présentant d'excellentes résistance à l'humidité et résistance thermique, ainsi qu'une température de transition vitreuse basse permettant de les utiliser dans des applications de scellement à basses températures, telles que l'encapsulation de composants électroniques. Dans un mode de réalisation, ces verres contiennent 55-75 % de Sn, 4-14 % de P, 6-24 % d'O, 4-22 % de F et 0,15-15 % de W, en pourcentage en poids élémentaire.
Bibliography:Application Number: WO2007US21206