| 摘要 |
PURPOSE:To adhere a foil on a lead frame stably by a method wherein the edge part of the tip of a cutter is pressed against the upper surface of the foil and a notch is formed in the lead frame through the foil by the edge part to fix the cut end of the foil to the lead frame by pressure. CONSTITUTION:When the end of a belt-shape foil 2 is cut and the cut foil 2 is bonded to a lead frame 24, a notch is formed in the lead frame 24 by the edge part 35 of a cutter 13 through the foil 2 at the time of cutting the foil 2 to fix the cut end of the foil 2 to the lead frame 24 by pressure. When the notch is formed, the cut end of the foil 2 is pressed against the lead frame 24 and the foil 2 is made to bite into the notch. With this constitution, even if the foil on the lead frame is not sufficiently melted, the foil does not peel off and a stable adherence can be realized.
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