Thermal and dielectric properties of glass-ceramics sintered based on diopside and anorthite composition

Autor: Wookyung Sung, Seongjin Hwang, Hyungsun Kim, Jin-Ho Kim
Rok vydání: 2007
Předmět:
Zdroj: Journal of Electroceramics. 23:209-213
ISSN: 1573-8663
1385-3449
DOI: 10.1007/s10832-007-9395-9
Popis: To develop a low dielectric constant of LTCC substrate, we studied the effect of the sintering and crystallization behavior on the dielectric properties of a sintered body by mixing a CaO–Al2O3–SiO2 frit and a CaO–MgO–SiO2 frit for a low dielectric constant of LTCC substrates. In this work, the two glass frits were mixed at different proportions and sintered at 860~920°C. After sintering at 900oC for 1h, the glass frits crystallized into diopside and anorthite. The sintered bodies exhibited dielectric properties, ɛr = 6~8.6 at 1 GHz, which is an essential condition for a substrate in microwave devices. The results suggest that the glass-ceramic can be applied to low dielectric LTCC materials in the electronics packaging industry.
Databáze: OpenAIRE