Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1993-06-30
1995-01-03
Group, Karl
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
501 32, 501 42, 501 50, 501 64, 501 73, C03C 814, C03C 1400, C03C 3253, C03C 315
Patent
active
053786629
ABSTRACT:
A glass comprising 10-40 mol % as Ln.sub.2 O.sub.3 of a lanthanide oxide wherein Ln is a lanthanide element, 30-60 mol % as SiO.sub.2, B.sub.2 O.sub.3 and GeO.sub.2 in total of silicon dioxide, boron oxide and/or germanium oxide, and 16-40 mol % as Al.sub.2 O.sub.3 of aluminum oxide has high Tg, a low average coefficient of linear expansion and a high dielectric constant. A dielectric composition containing the glass and a dielectric material is useful in the fabrication of multilayer wiring substrates and multilayer ceramic capacitors.
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Group Karl
Sample David
TDK Corporation
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