abstract |
The present invention relates to an electrical connection structure and a method of manufacturing the same, a substrate having a bonding pad, a protective film disposed on the substrate to open the bonding pad, a solder ball electrically connected to the bonding pad, disposed on the bonding pad To form a solder ball support film for providing an inner region in which the solder ball is filled, and a metal film including a metal disposed between the bonding pad and the solder ball support film and having a smaller ionization tendency than the metal constituting the bonding pad. It may include. |