Rankin, Hill & Clark LLP
Lead frame
A lead frame includes a frame part, a lead extending inward from the frame part and having a front surface and a back surface, and an external connection terminal formed at a part of the lead in an extension direction and protruding from the back surface of the lead. The lead includes a pentagonal shape in a cross-section where the front surface of the lead faces upward, the pentagonal shape having a quadrangular main body part and a triangular protrusion protruding from a lower surface of the main body part. A width of a lower end of the main body part is smaller than a width of an upper end of the main body part.
SHINKO ELECTRIC INDUSTRIES CO., LTD.
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Koji Konosuke Makoto
Ato Kobayashi Takeuchi