Patent ID: 7816794
Filing Date: 2010-10-19
Classification: H01L,H03H

Abstract:
1. An electronic device comprising: a package substrate made of an insulator; a device chip that is flip-chip mounted on the package substrate through a bump; a seal portion sealing the device chip; a metal or resin layer being provided on a top surface of the seal portion, the entire metal or resin layer having a flat plate shape; and the seal portion including sidewalls that are made of solder and define at least a part of an outer shape of the electronic device, a protection film being formed in contact with side surfaces of the sidewalls and having a melting point higher than the solder, the protection film having exposed outermost side surfaces of the electronic device and being isolated from the bump, the device chip contacting the sidewalls made of solder, a side surface of the metal or resin layer, a side surface of the sidewalls and a side surface of the package substrate forming an identical flat surface.