CIRCUIT BOARD AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To prevent short-circuiting of a lead frame and a heat radiation plate on a circuit board which uses the lead frame. SOLUTION: The punching direction of the lead frame 3 is set to the direction opposite to that of the heat radiation plate 5. In such a manner, even if burrs are generated due to punching, they are not short-circuited to the heat radiation plate 5 through a sheet 1.