Patent ID: 7061166

Claim:
A laminated structure comprising: a laminated piece having a plurality of piezoelectric material layers and a plurality of electrode layers stacked in a predetermined sequence, said plurality of electrode layers including a first electrode layer provided with a first insulating region and a second electrode layer provided with a second insulating region at a position different from that of the first insulating region; a first interconnection line electrically connected to the first electrode layer while passing through the second insulating region provided in the second electrode layer; and a second interconnection line electrically connected to the second electrode layer while passing through the first insulating region provided in the first electrode layer, wherein said laminated piece further has at least one of a piezoelectric material layer provided as a lowermost layer and a piezoelectric material layer provided as an uppermost layer, and wherein at least one of the first and second interconnection lines extends to an intermediate part of either one of the piezoelectric material layer disposed as the lowermost layer and the piezoelectric material layer disposed as the uppermost layer.