Electronic parts packaging structure and method of manufacturing the same

摘要

The present invention includes the steps of forming a first resin film uncured (32a) on a wiring substrate (24) including a wiring pattern (28a), burying an electronic parts (20) having a connection terminal (21a) on an element formation surface in the first resin film uncured (32a) in a state where the connection terminal (21a) is directed upward, forming a second resin film (32b) for covering the electronic parts (20), obtaining an insulation film (32) by curing the first and second resin films (32a, 32b) by heat treatment, forming a via hole (32x) in a predetermined portion of the insulation film (32) on the wiring pattern (28a) and the connection terminal (21a), and forming an upper wiring pattern (28b) connected to the wiring pattern (28a) and the connection terminal (21a) through the via hole (32x), on the insulation film.