Rare-earth-containing glass material and substrate and device comprising such substrate

A rare-earth-containing glass material having a composition, expressed in mole percentages on and oxide basis, comprising: SiO2: 66-75 Al2O3: 11-17 B2O3: 0-4 MgO: 1-6.5 CaO: 2-7 SrO: 0-4 BaO: 0-4 Y2O3: 0-4 La2O3: 0-4 Y2O3+La2O3: 0.1-4. The inclusion of Y2O3 and/or La2O3 in the composition reduces th...

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Bibliographic Details
Main Authors DEJNEKA MATTHEW JOHN, DANIELSON PAUL STEPHEN, KICZENSKI TIMOTHY J, ELLISON ADAM JAMES
Format Patent
LanguageEnglish
Published 29.05.2012
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METALLURGY
MINERAL OR SLAG WOOL
PERFORMING OPERATIONS
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
TRANSPORTING
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Summary:A rare-earth-containing glass material having a composition, expressed in mole percentages on and oxide basis, comprising: SiO2: 66-75 Al2O3: 11-17 B2O3: 0-4 MgO: 1-6.5 CaO: 2-7 SrO: 0-4 BaO: 0-4 Y2O3: 0-4 La2O3: 0-4 Y2O3+La2O3: 0.1-4. The inclusion of Y2O3 and/or La2O3 in the composition reduces the T2.3 of the glass thereby allowing higher annealing-point glasses to be produced. The glass is particularly useful for low-temperature polycrystalline silicon-based semiconductor devices.
Bibliography:Application Number: US20090464423