Patent ID: 7545049

Claim:
An electronic parts packaging structure comprising: a wiring substrate having a wiring pattern; an insulating film formed on the wiring substrate, the insulating film having an opening portion which passes through in a thickness direction in a packaging area in which an electronic parts is mounted; the electronic parts having a connection terminal on an element formation surface thereof and having a protection film formed only on a backside surface which is an opposed surface to the element formation surface as a part of the electronic parts, and no protection film formed on an outside of the electronic parts, the protection film being made of a resin, the connection terminal of the electronic parts being flip-chip mounted on the wiring pattern exposed in the opening portion of the insulating film; a via hole formed in a predetermined portion of the insulating film on the wiring pattern; and an upper wiring pattern composed of a seed film and a film pattern formed of a single wiring, and formed on an inner surface of the via hole and the insulating film and the protection film of the electronic parts, having a lower surface contacting the insulating film and the protection film of the electronic parts, and connected to the wiring pattern through the via hole, wherein an upper surface of the protection film of the electronic parts and an upper surface of the insulating film having the opening portion are adjusted to an almost same height.