| 摘要 |
<p>In the upper position, the capillary unit (10) of the apparatus can be moved upwards relative to the clamped bonding wire (11) by a mechanism (21, 22) to produce a protruding wire segment determining a specified tail length. A flaming unit, in particular, a flaming lance (18) is positionable so that it forms a ball at the free end of this wire segment. The method includes the following steps: a) positioning of the capillary unit (10), together with the ball at the end of the bonding wire, to a first bonding point (17); b) welding of the ball with supply of heat, use of a specified pressure and/or ultrasound; c) displacement of the capillary unit to produce a wire loop (25); d) welding of the bonding wire to a second bonding point (16); e) clamping of the bonding wire by the unit (13), and upward motion of the units (10, 13) to rupture the wire at the bonding point (16). In the upper position, the capillary unit (10) of the claimed apparatus is movable upwards relative to the clamped bonding wire (11) by a mechanism (21, 22) to produce a protruding wire segment determining a specified tail length. A flaming unit, in particular, a flaming lance (18) is positionable so that it forms a ball at the free end of this wire segment.</p> |
