| 摘要 |
PURPOSE:To provide a board for mounting electronic parts, which can prevent cracks and flakings apt to occur in the corner section of an insulating base material from penetrating inwards, and which can protect surely through holes in connection with the electronic parts electrically, and moreover, which has a simple structure. CONSTITUTION:A board for mounting electronic parts, wherein at least one dummy hole 14 is formed at the portion, which is located in the nearly middle position between the corner section of an insulating base material 11 and a through hole 13 or a conductor pattern 12 closest to the corner section, and which is also located in the position set inwards from the end face of the insulating base material 11 by the distance nearly equal to its thickness. |
