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http://dx.doi.org/10.4313/JKEM.2004.17.9.942

Microwave Dielectric Properties of Low Temperature Co-fired Ceramics with Glass Frit and TiO2 Additives  

윤중락 (삼화콘덴서 연구소)
이석원 (호서대학교 정보제어공학부)
이헌용 (명지대학교 전기전자공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.17, no.9, 2004 , pp. 942-946 More about this Journal
Abstract
The crystalline and dielectric properties on Al$_2$O$_3$ filled glass frit (CaO-Al$_2$O$_3$-SiO$_2$-MgO-B$_2$O$_3$) with admixtures of TiO$_2$ have been investigated. The dielectric constant value of 7.5 ∼ 7.8, qualify factor value of 700 were obtained for glass frit : Al$_2$O$_3$(50 : 50 wt%) ceramics. Addition of TiO$_2$ less than 5 wt% slightly increased the dielectric constant from 7.8 to 8.8 due to higher dielectric constant of TiO$_2$. With increasing the amount of TiO$_2$ up to 5 wt%, the temperature coefficient of dielectric properties was improved. When the TiO$_2$ 5 wt% were added, dielectric properties were dielectric constant 8.8, quality factor 840 and the temperature coefficient of dielectric 45 ppm/$^{\circ}C$ at a sintering temperature 920$^{\circ}C$.
Keywords
Glass Frit; LTCC(Low Temperature Co-fired Ceramic); Dielectric Constant; Qualify Factor(Q); Temperature Coefficient;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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