| 摘要 |
PURPOSE:To connect a metallic small wire and the electrode of a pellet, etc. strongly by applying vibration to the metallic small wire from the two different directions. CONSTITUTION:The second ultrasonic horn 7 is mounted at a position in the direction different from a conventional ultrasonic horn 6, a capillary 8 is penetrated to both noses, and both horns are fixed. When adjusting the phase of AC signals applied to the vibrators 9, 10 of each horn, the crushed shape of a ball can be formed in an approximately circle. Accordingly, the displacement of the center of the ball, the increase of a diameter in the vibrating direction and the insufficiency of adhesive strength in the non-vibrating direction as seen in one horn are removed, and reliability is improved. |
