发明名称 |
Low temperature-fired porcelain articles and electronic parts |
摘要 |
An object of the invention is to provide a low temperature fired porcelain having an optimum firing temperature not higher than 1000° C. a reduced dielectric constant∈r, an improved quality coefficient and a low incidence of cracks. The invention provides a low temperature-fired porcelain comprising a barium component in a calculated amount of 10 to 64 weight percent when calculated as BaO, a silicon component in a calculated amount of 20 to 80 weight percent when calculated as SiO2, an aluminum component in a calculated amount of 0.1 to 20 weight percent when calculated as Al2O3, a boron component in a calculated amount of 0.3 to 1.0 weight percent when calculated as B2O3 a zinc component in a calculated amount of 0.5 to 20 weight percent when calculated as ZnO, and a bismuth component in a calculated amount of not higher than 20 weight percent when calculated as Bi2O3.
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申请公布号 |
US6764746(B2) |
申请公布日期 |
2004.07.20 |
申请号 |
US20020091132 |
申请日期 |
2002.03.05 |
申请人 |
NGK INSULATORS LTD;SOSHIN ELECTRIC |
发明人 |
OOBUCHI TAKESHI;NARUO YOSHIAKI;IDE YOSHINORI |
分类号 |
C04B35/00;B32B18/00;C04B35/16;C04B35/195;H01B3/12;H05K1/03;(IPC1-7):C03C3/093;B32B3/00 |
主分类号 |
C04B35/00 |
代理机构 |
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代理人 |
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