Patent ID: 6809459
Filing Date: 2004-10-26
Classification: H01L

Abstract:
A piezoelectric/electrostrictive device comprising a ceramic substrate and at least a piezoelectric/electrostrictive element stacked on said ceramic substrate, whereinsaid piezoelectric/electrostrictive element includes a plurality of piezoelectric/electrostrictive layers and a plurality of electrode layers stacked alternately in a comb like structure on said ceramic substrate, said electrode layers includes one or more intermediate electrode layers at an intermediate portion of said piezoelectric/electrostrictive element, said intermediate electrode layers being formed by sintering a cermet film containing a conductive material and a piezoelectric/electrostrictive material, and in at least one of said intermediate electrode layers, said conductive material shrinks in the sintering and forms a conductive portion occupying 80% or more of said intermediate electrode layer.