| 摘要 |
PURPOSE:To obtain a resin molded object wherein a skin layer of the upper end edge part is polished and the adhesion of a lid body using adhesive agent is increased, by adding a process for performing dry-blasting from an aperture part toward the inside recessed part of a box type resin molded object. CONSTITUTION:After a lead frame 2 is set in a metal mold, resin is injected to obtain a box type resin molded object 1 unified in a body with the lead frame 2. An island part 6 is buried in the recessed bottom 5 of the box type molded object 1. An inner lead part 3 of the lead frame 2 is exposed and arranged on the outside of the recessed part. Dry-blasting is performed from the aperture part toward the inside recessed part of the box type resin molded object 1 obtained in the preceeding process. Further the inside recessed part of the box type molded object 1 is washed. Thereby excellent adhesion is obtained, and wire-bonding to the lead frame can be improved. |
