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CERAMIC SUBSTRATE, PROCESS FOR PRODUCING THE SAME, AND DIELECTRIC-PORCELAIN COMPOSITION
A ceramic substrate is provided as one having a large coefficient of thermal expansion ±, having properties suitable for use as a high-frequency substrate, being capable of being fired at a low temperature, and having an excellent substrate strength. The ceramic substrate has a main composition containing Mg 2 SiO 4 and a low-temperature-fired component, has the coefficient of thermal expansion ± of not less than 9.0 ppm/°C, and contains up to 25 vol.% (excluding zero) ZnAl 2 O 4 or up to 7 vol.% (excluding zero) Al 2 O 3 . A dielectric-porcelain composition is provided as one being capable of being fired at a temperature lower than a melting point of an Ag-based metal and being capable of demonstrating a sufficient bending strength even through firing at a low firing temperature. The dielectric-porcelain composition contains Mg 2 SiO 4 as a major component and contains a zinc oxide, a boron oxide, an alkaline earth metal oxide, a copper compound, and a lithium compound as minor components.
CERAMIC SUBSTRATE, PROCESS FOR PRODUCING THE SAME, AND DIELECTRIC-PORCELAIN COMPOSITION
A ceramic substrate is provided as one having a large coefficient of thermal expansion ±, having properties suitable for use as a high-frequency substrate, being capable of being fired at a low temperature, and having an excellent substrate strength. The ceramic substrate has a main composition containing Mg 2 SiO 4 and a low-temperature-fired component, has the coefficient of thermal expansion ± of not less than 9.0 ppm/°C, and contains up to 25 vol.% (excluding zero) ZnAl 2 O 4 or up to 7 vol.% (excluding zero) Al 2 O 3 . A dielectric-porcelain composition is provided as one being capable of being fired at a temperature lower than a melting point of an Ag-based metal and being capable of demonstrating a sufficient bending strength even through firing at a low firing temperature. The dielectric-porcelain composition contains Mg 2 SiO 4 as a major component and contains a zinc oxide, a boron oxide, an alkaline earth metal oxide, a copper compound, and a lithium compound as minor components.
CERAMIC SUBSTRATE, PROCESS FOR PRODUCING THE SAME, AND DIELECTRIC-PORCELAIN COMPOSITION
KERAMIKSUBSTRAT, VERFAHREN ZU SEINER HERSTELLUNG UND DIELEKTRISCHE PORZELLANZUSAMMENSETZUNG
SUBSTRAT DE CÉRAMIQUE, SON PROCÉDÉ DE FABRICATION ET COMPOSITION DE PORCELAINE DIÉLECTRIQUE
SUZUKI TOSHIYUKI (Autor:in) / MIYAUCHI YASUHARU (Autor:in) / KANADA ISAO (Autor:in)
14.03.2018
Patent
Elektronische Ressource
Englisch
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