Low temperature sintering low dielectric inorganic composition

摘要

A low temperature sintering, low dielectric inorganic composition is a ternary inorganic composition comprising cordierite, quartz glass and lead borosilicate glass, wherein if the amounts of the cordierite, quartz glass and lead borosilicate glass are represented by X, Y and Z (wt %) respectively, the composition of the ternary system falls within the range encircled by the following four points (a) to (d) including the lines between each neighboring two points:PP (X=35; Y=0; Z=65) (a)PP(X=65; Y=0; Z=35) (b)P P(X=0; Y=65; Z=35) (c)PP(X=0; Y=35; Z=65) (d)P P The inorganic composition has a dielectric constant substantially lower than that of the conventional composition while maintaining high reliability such as an ability of being sintered at a low temperature, high insulation properties and high resistance to water as well as excellent mechanical properties such as strength. The composition can be used for producing multilayer ceramic wiring boards for mounting very high speed VLSI elements and contributes to an increase in the packaging density and the production of fast transmitting devices.