| 摘要 |
PURPOSE:To suppress the intrusion of external moisture by a method wherein the original form body of a zigzag plane pattern is bent in L-shape, and one side of the L-shape is brought into a state of intermission. CONSTITUTION:After the electrode pad of a semiconductor pellet 1 and a plurality of lead terminals 2, the inner end parts of which are arranged on the circumference of the pellet 1, has been connected with fine metal wires 3, they are sealed with sealing resin 4. A protrusion 2a, one side face of which is partially protruded in lateral direction, is formed on the lead terminal 2. Besides, the lead terminal 2 is formed almost into vertically bent shape from the original form body of flat conductive metal of zigzag pattern, whereon a recessed part having the side face on the reverse side of the protruded part 2a partially cut into the inside, using one side face part of said original form body as a bending line. A plane path starting from the external end of the lead and ending at its inner end makes a detour with its horizontal surface disconnected in the midway, and the path returns to its former horizontal surface. |
