| 摘要 |
A low temperature sintering ceramic composition can be sintered at 850 to 1,000° C., and the sintered ceramic has a low dielectric constant (9 or less at 16 Ghz or more) and a high Qf (10,000 or more). The composition can be co-sintered with wiring material containing Ag, Au, or Cu. The ceramic composition includes (by mass) CaO, MgO, and SiO<SUB>2 </SUB>in total: over 60% to 98.6%; Bi<SUB>2</SUB>O<SUB>3</SUB>: from 1% to under 35%; and Li<SUB>2</SUB>O: from 0.4% to under 6%; wherein (CaO+MgO) and SiO<SUB>2 </SUB>are contained in the molar ratio of from 1:1 to under 1:2.5.
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