| 摘要 |
PURPOSE:To shorten the time of the step of connecting a fine metallic wire by operating the first bonding tool for a main electrode and the second bonding tool for a sub-electrode simultaneously or at a short time delay. CONSTITUTION:The first bonding tool 10 having a fine metallic wire 5 of large diameter for a cathode electrode 4a and the second bonding tool 11 having a fine metallic wire 7 of small diameter for a gate electrode 4b are provided, both the bonding tools 10, 11 are operated simultaneously or at a short time delay, the wire 5 connects the cathode electrode to a lead wire 6 in the sequence of (1), (2) and (3), and the wire 7 connects the gate electrode to a lead wire 8 in the sequency of (1) and (2). Thus, the time required for connecting the wires can be shortened. |
