| 摘要 |
A dielectric paste for fabrication of multilayer ceramic substrates containing capacitive circuits. The paste comprises a dielectric powder composed of a dielectric material and a vitreous binder suspended in an organic vehicle. The dielectric material consists essentially of a composition expressed by the general formula: {(Ba1-x-y-zSrxCayMgz)O}mx(Ti1-uZru)O2 wherein x, y, z, u and m take values within the following respective ranges: 0</=x<0.30, 0</=y<0.30, 0</=z<0.05, 0</=u<0.25, 1</=m<1.03, and the vitreous binder consists essentially of a composition expressed by the general formula: alpha Li2Ox beta BaOx gamma B2O3x(1- alpha - beta - gamma )SiO2 wherein alpha , beta and gamma are molar ratios of the respective ingredients and take values within the following respective ranges: 0</= alpha <0.25, 0.1</= beta <0.5, 0.1< gamma <0.5, and 0.3 < alpha + beta + gamma <0.8. The content of the vitreous binder in the dielectric powder ranges from not less than 5 wt % to less than 40 wt %. |
