Patent ID: 7157800

Claim:
A bonded structure having electric structures bonded by a conductive adhesive, comprising: a first electric structure, including a first electrode; a second electric structure, including a second electrode; an electrode bonding section configured to provide electric conductivity by fusion bonding of metal particles to at least one of said first and second electrodes; a middle bonding section configured to provide electric conductivity between said first and second electrodes by conductive adhesive; wherein: said metal particles fuse at a temperature below a thermosetting temperature of said conductive adhesive; said conductive adhesive contains conductive filler pieces that do not fuse at a temperature below said thermosetting temperature of said conductive adhesive; and a portion of said metal particles are fused to one of the first and second electrodes provided with electric conductivity by the electrode bonding section and to the conductive filler pieces within the conductive adhesives, so that the middle bonding section is bonded to said one of the first and second electrodes provided with the electric conductivity by the electrode bonding section.