Patent ID: 7655506

Claim:
A production process for manufacturing a plurality of leadless type resin-sealed semiconductor packages, comprising: preparing a metal electrode frame including a plurality of electrodes, each of which has a recess formed in a bottom surface thereof; preparing a plurality of semiconductor chips, each of which has at least one electrode terminal formed on a top surface thereof; establishing an electrical connection between the at least one electrode terminal of each of said semiconductor chips and a corresponding one of the electrodes of said metal electrode frame; molding said metal electrode frame and said semiconductor chips with a resin material to thereby form a molded resin enveloper that encapsulates said semiconductor chips, and that partially encapsulates the electrodes of said metal electrode frame so that the resin material is not introduced into the recesses of said electrodes, such that the bottom surfaces of said electrodes are exposed on an outer surface of said molded resin enveloper without being covered with the resin material; and cutting said molded resin enveloper into a plurality of leadless type resin-sealed semiconductor packages, each of which includes one of said semiconductor chips mounted on that portion of the electrode which bears the recess, and an outer electrode terminal cut off from one of the electrodes of said metal electrode frame, such that each of said outer electrode terminals is formed with a depression that is formed by cutting that portion of the corresponding electrode which bears the recess.