A semiconductor device manufacturing method comprising steps of:
- a) placing an electrode-pin mask on a semiconductor chip;
- said semiconductor chip having electrode pads thereon;
- said electrode-pin mask having electrode-pin holes therein, positions of said electrode-pin holes formed in said electrode-pin forming mask matching positions at which said electrode pads are formed on said semiconductor chip;
- and
- said step a) being performed such that each of said electrode-pin forming holes faces a respective one of said electrode pads;
- b) performing a screen-printing process on said semiconductor chip using said electrode-pin forming mask placed on said semiconductor chip so as to fill said electrode-pin forming holes with conductor material;
- and
- c) removing said electrode-pin forming mask from said semiconductor chip so as to cause said conductor material to remain on said semiconductor chip, said conductor material thus forming electrode pins, each electrode pin being thus provided on a respective one of said electrode pads of said semiconductor chip.