| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a laminated lead frame having at least two lead frame plates which can be easily stacked, can reduce a manufacturing cost, and in some cases, can be manufactured without forming a pilot hole in the side rail of the finished laminated lead frame, and to provide the laminated lead frame. SOLUTION: The method has a first step of forming a plurality of pairs each having recesses 12 and 13, and a plurality of pairs each having recesses 14 and 15 by half etching or by semi-punching at the same positions of at least two lead frame plates 10 and 11; a second step of stacking the lead frame plates 10 and 11 by fitting projections 14 and 15 in the corresponding recesses 12 and 13; and a third step of joining the stacked lead frame plates 10 and 11 by heating and compressing the plates. COPYRIGHT: (C)2007,JPO&INPIT |
