Method for producing piezoelectric actuator, method for producing liquid droplet jetting apparatus, piezoelectric actuator, and liquid droplet jetting apparatus

摘要

A film-forming nozzle (52) is moved so that a boundary portion of a plurality of areas on which a piezoelectric material layer (31) is formed by a film-forming nozzle moving relative to a vibration plate (30) is positioned outside deformable portions (30a) of the vibration plate and overlaps with restricted portions. This reduces stress concentration on a portion of the piezoelectric layer corresponding to the boundary portion of the deposition areas, and therefore, damage of the piezoelectric material layer is prevented.