| 摘要 |
PURPOSE: To obtain a lead frame which can fix a mounted board immovably. CONSTITUTION: A lead frame is equipped with a bed part whereon a board 12 is mounted and with leads 10 provided radially around the bed part. While various signal lines are allotted to these leads 10, a number of leads are left unused. The leads 10 to which signals are allotted are separated at a prescribed distance from the board 12, since the contact thereof with the board 12 causes a short-circuiting of a circuit. On the other hand, the unused leads 10a (hereinafter called board-fixing leads) can be extended to the vicinity of the board 12, since they cause no short-circuiting of the circuit even when they come into contact with the board 12. By providing the board-fixing leads 10a in prescribed numbers, consequently, the board mounted on the lead frame can be fixed immovably. |
