CERAMIC RAW MATERIAL COMPOSITION, CERAMIC SINTERED COMPACT, CERAMIC MULTILAYER SUBSTRATE AND MANUFACTURING METHOD THEREOF, AS WELL AS COMPOSITE GREEN SHEET FOR MAKING CERAMIC MULTILAYER SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To provide a ceramic raw material composition by which a ceramic sintered compact excellent in high frequency characteristics, having high strength, and excellent in stability of coefficient of linear expansion at the burning temperature can be obtained.;SOLUTION: The ceramic raw material composition comprises a glass material and a ceramic material, and further comprises CeO₂ at a rate of 0-5 wt.% and TiO₂ at a rate of 0-5 wt.%, wherein the glass material comprises 20-50 wt.% SiO₂, 30-60 wt.% BaO, 5-20 wt.% MgO, 0-10 wt.% ZnO, 0-10 wt.% Al₂O₃, and 0-10 wt.% B₂O₃ and the ceramic material comprises 25-40 wt.% SiO₂, 30-55 wt.% BaO, 0-30 wt.% MgO, 0-30 wt.% ZnO, and 0-15 wt.% Al₂O₃. The ceramic raw material composition can be suitably used as a material of the base layer 2 in a ceramic multilayer substrate 1 which is provided with base layers 2 and constraining layers 3.;COPYRIGHT: (C)2009,JPO&INPIT