| 摘要 |
PURPOSE:To enable an accurate positioning to be performed and increase the efficiency of the automatic mounting of a molded resin by integrally forming positioning projection members with a lead frame such that the members are projected from two side surfaces of the molded resin, said surfaces having no outer lead exposed outside. CONSTITUTION:Projection members 8 and 9 integrally formed with the island portion 10 of a lead frame are perpendicularly projected outward from the two side surfaces 4 and 7 of a molded resin 1 for sealing the lead frame therein, said molded resin 1 having the plan view of an approximately tetragonal configuration and said two side surfaces having none of such an outer lead as those 2a-2n and 3a-3n. The outside projection lengths of the projection members 8 and 9 are larger than the maximum length of expected burrs and adapted for the molded resin 1 to be held by an automatic mounting device. The projection members 8 and 9 are held by the automatic mounting device and a positioning is performed on the basis of the distance between the member 8 and the lead 2a. |
