Patent ID: 7057290

Claim:
An electronic parts packaging structure comprising: a wiring substrate having a wiring pattern; a first insulating film formed on the wiring substrate, the first insulating film having an opening portion in a packaging area in which an electronic parts is mounted; the electronic parts having a connection terminal flip-chip mounted on the wiring pattern exposed in the opening portion of the first insulating film; a second insulating film for covering the electronic parts; a via hole formed in a predetermined portion of the first and second insulating films on the wiring pattern, the via hole having same side surface; an upper wiring pattern composed of a seed film and a film pattern formed as a single wiring on an inner surface of the via hole and on the second insulating film, and connected to the wiring pattern through the via hole; and an upper electronic parts having a connection terminal flip-chip mounted on a portion of the upper wiring pattern which directly contacts an upper surface of the second insulating film.