. . . "state in which sub-chips are mounted on the semiconductor chip in FIG. 15; [0123]FIG. 17 is a cross section showing the state in which a semiconductor chip in the state in FIG. 16 is placed on a rewired substrate; and [0124]FIGS. 18a and 18 b are a cross section and a plan view illustrating the printing step in a conventional bump formation method." . .