Patent ID: 6882089

Claim:
A piezoelectric/electrostrictive device comprising: a ceramic substrate; at least one piezoelectric/electrostrictive layer comprising a piezoelectric/electrostrictive ceramic composition and being formed on said ceramic substrate; and at least one pair of electrodes electrically connected to said piezoelectric/electrostrictive layer; wherein said piezoelectric/electrostrictive ceramic composition contains a major component comprising a PbMg 1/3 Nb 2/3 O 3 —PbZrO 3 —PbTiO 3 system composition, wherein part of the Pb is substituted with at least one of Sr and La, and contains Ce in an amount of 0.01 to 0.50% by mass in terms of CeO 2 ; and wherein said piezoelectric/electrostrictive layer is solidly attached to said substrate directly or via part of said electrodes.