| 摘要 |
PROBLEM TO BE SOLVED: To provide a lead frame by which leads can efficiently be connected to both of the surfaces of a substrate. SOLUTION: A flat lead frame which consists of a frame part 10 and a first lead part 20 and a second lead part 30, both of which are shaped like combs, extends from this frame part 10 toward the inner peripheral side of it, so that their tip parts face each other, sites of the frame 10 except for sites supporting both of the parts 20 and 30 and the tip parts of both of the parts 20 and 30 are folded in a direction crossing with the main surface of the lead frame and an interval W between a folded part 21 of the part 20, and a folded part 31 of the part 30 is made to be nearly equal in thickness to that of the substrate.
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