| 摘要 |
<p>PURPOSE: To eliminate a step between a ceramic substrate and a glaze film and prevent discontinuity of a connecting pattern to be formed on the step part by simultaneously forming by firing the glaze film in the recessed part, which is formed on the surface of the ceramic substrate, with the ceramic substrate. CONSTITUTION: A recessed part 2 is provided on the surface of a ceramic substrate 2, and a glaze film 3 is formed in the recessed part 2. The ceramic substrate 1 and the glaze film 3 are formed of materials that sinter at 1000 deg.C or below, are formed by simultaneous baking, and at the boundary, a glass diffusion layer 4, in which the glass component of the glaze film 3 is diffused, is formed. Thus, strength of the glaze film 3 and the ceramic substrate 1 is improved, and cracks are eliminated. A step between the surfaces of the glaze film 3 and the ceramic substrate 1 is eliminated, or the step between the surfaces becomes 20μm or less in height, and discontinuity of a connecting pattern to be formed on the step part is prevented.</p> |
