Patent ID: 7530163

Claim:
A method of manufacturing an electronic parts packaging structure comprising the steps of: preparing an electronic parts, having a connection pad formed on a surface side of the electronic parts, the connection pad being constructed by an aluminum pad and an etching stopper film covering the aluminum pad, the aluminum pad made of aluminum or an aluminum alloy, the etching stopper film having a conductive paste film as an uppermost film thereof; mounting the electronic parts on a mounted body to direct the connection pad upward; forming an insulating film to cover the electronic parts; forming a via hole by etching a portion of the insulating film on the connection pad by a laser; and forming a wiring pattern connected to the connection pad via the via hole; wherein the etching stopper film functions as a stop layer upon forming the via hole in the insulating film by the laser, and the via hole is connected to the aluminum pad via the etching stopper film.