| 摘要 |
PURPOSE:To prevent a recess from generating at the connection part of a via- hole and to stabilize an electric connection of the via-hole by forming a through hole passing through integrally a base sheet adhering to a green sheet, filling conductive paste in the hole, drying it and peeling the sheet. CONSTITUTION:A sheet material 2 to become a base sheet adheres to one side face of a green sheet 1, a through hole 3 integrally passing through the sheet 1 and the material 2 is formed, conductive paste 4 is filled in the hole 3, dried, cured, and the material 2 is peeled to be removed from the sheet 1. Then, the paste 4 filled in the hole 3 at the side of the material 2 remains in a state (d) of the drawing on the sheet 1. In this case, the paste 4 is lightly press-molded from its outer end face. Thus, a viahole having no recess is formed, and a stable electric connection can be obtained. |
