| 摘要 |
PURPOSE:To prevent short-circuit failure by pulling up a loop by a method wherein the tip of an inner lead is positioned above the junction plane on the inner lead side. CONSTITUTION:The tip of the inner lead 12 is positioned above the junction plane on the inner lead side by press working, and then the lower end surface 15 of a linear loop is brought into contact at a higher position. This construction enables the loop to be higher as a whole at the time of loop formation, and edge contact failure and loop sag failure to be prevented by keeping the loop itself away from a pellet or an island. |
