Patent ID: 7342349

Claim:
A one-dimensional piezoelectric actuator array comprising: a piezoelectric device substrate having a plurality of comb teeth arranged in a one-dimensional matrix and connected to one another at a first end of the piezoelectric device substrate, at least one of the comb teeth being one of a plate-shaped piezoelectric member and a pillar-shaped piezoelectric member having at least one pair of electrodes formed thereon, the one-dimensional matrix forming a plane extending along a length of the comb teeth from the first end of the piezoelectric device substrate to an opposite end thereof and contacting each of the plurality of comb teeth; and a guide substrate having a concave portion for housing at least a part of the piezoelectric device substrate, the concave portion extending parallel to the plane of the one-dimensional matrix, wherein the guide substrate and the piezoelectric device substrate are integrally unified in such a manner that the guide substrate and the piezoelectric device substrate are readily usable as individual stacks for formation of a multiple stack structural body.