| abstract |
The invention relates to a glass ceramic with a relative permittivity epsilon¶r¶ selected from the range from 2 to 7 inclusive, characterized in that the glass ceramic has at least one ceramic material with a range from 9 ppm / K to 13 ppm / K inclusive selected thermal expansion coefficient. In addition, a ceramic green body, in particular a ceramic green film, is specified with the glass ceramic. In addition, the invention relates to a monolithic ceramic multilayer body (1), comprising a ceramic layer (2) with a glass ceramic, which has a specific thermal expansion coefficient, and at least one further ceramic layer (3) with a further ceramic different from the glass ceramic, which is another has certain coefficients of thermal expansion. The multilayer body is characterized in that the glass ceramic has at least one ceramic material with a thermal expansion coefficient selected from the range from 9 ppm / K up to and including 13 ppm / K for matching the thermal expansion coefficients. The ceramic material is preferably aluminum-magnesium spinel or zirconium dioxide. With the ceramic materials, the thermal expansion coefficient of the glass ceramic can be set within a wide range. Due to the low relative permittivity epsilon¶r¶, the glass ceramic is suitable ... |