Effect of anorthite and diopside on dielectric properties of Al2O3/glass composite based on high strength of LTCC substrate

Autor: Jin-Ho Kim, Seongjin Hwang, Hyungsun Kim, Wookyung Sung
Rok vydání: 2008
Předmět:
Zdroj: Journal of Materials Science. 43:4009-4015
ISSN: 1573-4803
0022-2461
DOI: 10.1007/s10853-007-2231-4
Popis: The green sheet of an alumina filler/glass matrix, which is a glass–ceramic based on an anorthite and diopside composite, is a low-fired substrate material for microelectronic packaging. In this study, alumina/glass sheets were prepared using a tape-casting process. The mechanical and dielectric properties of the sintered bodies were examined as a function of the sintering temperature. The volume of the crystalline phases was considered with the peak area of the XRD intensity for evaluating the alumina/glass composite. The flexural strength and dielectric properties of the sintered alumina/glass composites were 167.2 ± 13.1 MPa for the four-point bending test, 5.51 for the dielectric constant and 2,078 MHz for the quality factor, respectively. The dielectric constant was dependent on the volume of crystalline phases present.
Databáze: OpenAIRE