| 摘要 |
<p>Provided is a highly dense, multilayered ceramic substrate. The glass ceramic composition for forming a ceramic layer of the multilayered ceramic substrate is a mixture of a glass powder (1) comprising CaO-SiO2-Al2O3-B2O3 and a ceramic powder (2) comprising Al2O3. The passing particle size (D50) of 50% of the glass powder (1) contained in the glass ceramic composition is less than 3.5 µm, and the passing particle size (D99) of 99% of the glass powder (1) contained in the glass ceramic composition is less than 15 µm, while the passing particle size (D50) of 50% of the ceramic powder (2) contained in the glass ceramic composition is less than 1.0 µm, and is smaller than the passing particle size (D50) of 50% of the glass powder (1).</p> |
