Patent ID: 8889452

Claim:
A method for manufacturing a piezoelectric device comprising: an ion implantation process for implanting ionized elements into a piezoelectric substrate to thereby form a portion in which a concentration of elements implanted into the piezoelectric substrate reaches a peak in the piezoelectric substrate; a sacrificial layer formation process for forming a sacrificial layer on a surface at the ion implanted side of the piezoelectric substrate; an inorganic layer formation process for directly forming an inorganic layer on a surface at the ion implanted side of the piezoelectric substrate on which the sacrificial layer is formed; an elastic body layer disposing process for disposing an elastic body layer on a surface opposite to the piezoelectric substrate of the inorganic layer; a pasting process for pasting a support member to the elastic body layer; a peeling process for peeling and forming a piezoelectric thin film from the piezoelectric substrate in which the portion in which the concentration of the elements implanted into the piezoelectric substrate reaches the peak is formed; and a sacrificial layer removal process for removing the sacrificial layer to thereby form a gap layer.