摘要 |
PURPOSE:To stack a plurality of individual lead frames with high positional accuracy and improve the productivity in assembling. CONSTITUTION:A gap 3 is provided between the fellow leads 1a and 1b to be stacked on top of the other and welded with each other, and the area including the gap 3 is welded, and one lead 1b is fused and cut off. Hereby, fused one lead coheres and separates at the section of the gap, so unnecessary parts such as a frame, etc., used in positioning can be cut off currently with the junction of the lead. |