Ceramic substrate, electronic apparatus, and method for producing ceramic substrate

摘要

A ceramic substrate includes a glass layer partially overlaying a conductor, and the glass layer has satisfactory adhesion to the main body of the ceramic substrate and having satisfactory plating resistance. The glass layer is arranged to extend from a portion of the conductor formed on a first main surface of the main body of the ceramic substrate to the first main surface of the main body of the ceramic substrate and which has a double-layered structure including a first glass sublayer composed of a first glass material, and a second glass sublayer formed on the first glass sublayer and composed of a second glass material that is different from the second glass material defining the first glass sublayer, the first glass material having more satisfactory adhesion to the main body of the ceramic substrate than the second glass material, and the first glass material having more satisfactory plating resistance than the first glass material.