| 摘要 |
PURPOSE:To obtain a ceramic material capable of low-temperature calcining, with low dielectric constant, high in signal transmission speed, suitable for high-frequency circuits by blending glass powder of specified composition and alumina powder. CONSTITUTION:The objective material can be obtained from (A) 50-65wt.% of glass powder comprising, on an oxide basis, (1) 40-70wt.% of SiO2, (2) 5-20wt.% of B2O3 and (3) 10-35wt.% of SrO and (B) 35-50wt.% of Al2O3 powder. |
