Patent ID: 9640743
Date: 2017-05-02
CPC Classifications: B29C,H01L

Claim:
1. A method for manufacturing a package, comprising preparing a lead frame that, in a region where a body of the package is formed, has a first electrode and a second electrode that is different from the first electrode; clamping the first electrode and the second electrode between an upper molding die and a lower molding die; injecting a first resin into the upper and lower molding dies between which the first electrode and the second electrode have been clamped, through an injection opening formed adjacent to the first electrode and on the outside of the region where the body of the package is formed; curing or solidifying the first resin into an annular wall having a bottom portion, a first outer surface, a second outer surface, a third outer surface and a fourth outer surface, the bottom portion being exposed upward inside of the annular wall, the second outer surface being adjacent to the first outer surface, the third outer surface being adjacent to the second outer surface and opposite the first outer surface, the fourth outer surface being adjacent to the first outer surface and the third outer surface, the bottom portion having the first electrode, the second electrode, a resin molding and a flange, the first electrode having a first outer lead component that protrudes outward from the annular wall in a plan view, the second electrode being exposed from the third outer surface, the flange being formed at the first outer surface and having the same thickness as the first outer lead component; and cutting out an injection mark of the injection opening for the first resin from next to the first electrode after the first resin has been cured or solidified, the injection mark being arranged at a position that does not overlap the first electrode in the plan view prior to the cutting out of the injection mark, the injecting of the first resin including injecting the first resin from a first space that is not overlapping with the first electrode of the lead frame in the plan view, the injection mark and the annular wall being continuously linked to each other after the injecting and prior to the cutting out of the injection mark.