| 摘要 |
A plurality of first green sheets forming first ceramic layers after firing are stacked to form a first pre-fired substrate 4. Next, a plurality of second green sheets forming second ceramic layers after firing are stacked to form a second pre-fired substrate. Next, the first pre-fired substrate 4 is formed with recesses 10. Next, first pre-fired blocks 6 of sizes fitting into the recesses are formed from the second pre-fired substrate. The first pre-fired blocks 6 are fit into the recesses 10 so that the stacking direction A of the first green sheets and the stacking direction A' of the second green sheets become the same. The first pre-fired substrate 4 in which the first pre-fired blocks 6 are fit is fired. <IMAGE> |
