Patent ID: 7294922

Claim:
A semiconductor device comprising: a semiconductor construction assembly including: (i) a semiconductor substrate having first and second surfaces that are mutually opposed to each other, and a plurality of side surfaces between the first surface and the second surface, (ii) an integrated circuit element formed on the first surface, (iii) a plurality of connection pads which are arranged on the first surface and connected to the integrated circuit element, (iv) a protective layer which is formed to cover the first surface of the semiconductor substrate and which has openings for exposing the connection pads, (v) a plurality of conductors which are connected to the connection pads and arranged on the protective layer and which have pads, (vi) columnar electrodes formed on the pads of the conductors, and (vii) a sealing film formed between the columnar electrodes and on the protective layer; a sealing member which covers at least one side surface of the semiconductor construction assembly; an upper insulating layer which covers the semiconductor construction assembly and the sealing member except for portions corresponding to the columnar electrodes so as to expose an upper surface of each of the columnar electrodes; upper conductors which are formed on the upper insulating layer, and each of which includes one end that is electrically connected to the pad of one of the conductors via one of the columnar electrodes and at least one external connection pad; wherein an external connection pad of at least one of the upper conductors is disposed in a region opposing the sealing member; and wherein an additional insulating layer made of an inorganic material is formed between the semiconductor substrate and the protective layer of the semiconductor construction assembly.