| 摘要 |
With a device for the formation of a wire ball at the end of a wire an in and out swivelling electrode with an oblong shape is connected to the shaft of a motor directly or indirectly via a connecting piece so that the electrode is essentially rotated on its longitudinal axis when swivelling in and out. The mass inertia of the electrode is low as regards the rotational axis which is why it can be turned with negligible expenditure of energy. On swivelling in and out, the electrode is turned back and forth between a lower limit position in which a surface necessary for creating the spark, the so-called firing lug is located underneath the capillary of the Wire Bonder and an upper limit position in which the firing lug is located laterally elevated next to the capillary.
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