| 摘要 |
PURPOSE:To obtain the title wire bonder capable of increasing the manufacturing yield in the wire bonding step by a method wherein the title bonder is provided with respectively specific spool revolving unit, a spool shifting unit, a revolution detecting circuit and a shifting unit drive control circuit. CONSTITUTION:A wire 2 continuously wound up around the surface of a spool 1 in columnar shape along the axial direction is fed to a bonding tool 10 through a back tension unit 5. The title wire bonder is provided with a spool revolving unit 11 controlling the revolution of the spool 1 as well as a spool shifting unit 12 shifting the spool 1 and spool revolving unit 11 in the axial directions A2, A1 of the spool 1, furthermore, a revolution detecting circuit 13 detecting the revolution of the spool 1 as well as a shifting unit drive control circuit 14 shifting the spool shifting circuit 12 by specific shifting amount per specific revolution at the detection signal from the revolution detecting circuit 13. |
