GLASS CERAMIC COMPOSITION, GLASS CERAMIC SINTERED BODY AND MANUFACTURING METHOD FOR THE SAME, AND CIRCUIT BOARD AND THIN FILM CIRCUIT BOARD BOTH USING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a glass ceramic composition capable of simultaneously firing together with a low resistant metal such as gold, silver and copper, and having a dielectric constant lower than alumina and also having high strengths and high dielectric constant and high Young's modulus characteristics and having lower dielectric constant and dielectric loss, to provide a glass ceramic sintered body and a manufacturing method therefor, and to provide a circuit board and a thin film circuit board both using the glass ceramic sintered body.;SOLUTION: A powdery mixture containing 35-80 mass% powdery glass containing at least 20-60 mass% SiO₂, 2-30 mass% B₂O₃, 5-25 mass% Al₂O₃, 8-35 mass% MgO, 10-35 mass% BaO as essential components, and having an MgO/SiO₂ mass ratio of 0.20-0.85, and also substantially containing no ZnO and TiO₂ and 20-65 mass% powdery ceramic are burned at a low temperature of 1,000°C or less.;COPYRIGHT: (C)2006,JPO&NCIPI