发明名称 ELECTRONIC WATCH
摘要 PURPOSE:To produce a porcelain capacitor of small size and capacity by using a porcelain dielectric which has a low specific dielectric constant and a high capacity changing rate for temperature. CONSTITUTION:As a starting material, BaTiO3, SrTiO3 and MgTiO3 are prepared to have the composition, as seen in Table. The resultant mixture is filtered, dried and molded, followed by sintering. The sample thus obtained is metered in a frequency of 10 KHz. The results have revealed that sample No.l has a high capacity changing rate and a considerably high specific dielectric constant. Smaples No. 2 and 3 have one second and third of the conventional specific dielectric constant but one second and third of the conventional specific dielectric constant but a substantially equal capacity changing rate so that they can be the most suitable for a temperature compensating capacitor of small tupe.
申请公布号 JPS5467467(A) 申请公布日期 1979.05.30
申请号 JP19770134351 申请日期 1977.11.09
申请人 SEIKO INSTR & ELECTRONICS 发明人 SATOU KEINI
分类号 G04G3/00;G04F5/06;H01L41/187;H03H3/04 主分类号 G04G3/00
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