Patent ID: 7089635

Claim:
A method of producing at least one piezoelectric element comprising: depositing a piezoelectric ceramic material onto a first surface of at least one first substrate to form at least one piezoelectric element structure, having a first surface of the at least one piezoelectric element structure in direct contact with the first surface of the at least one first substrate; depositing an electrode on a second surface of the at least one piezoelectric element structure; bonding the at least one piezoelectric element structure to a transfer substrate, wherein the bond between the piezoelectric element structure and the transfer substrate is temporary; removing the at least one first substrate from the at least one piezoelectric element structure; depositing a second side electrode on a first surface of the at least one Piezoelectric element structure: poling, by applying a DC voltage to the at least one piezoelectric element structure, to provide the at least one piezoelectric element structure with piezoelectric characteristics; performing a property test following the poling step to determine the operational characteristics of the poled, at least one piezoelectric element structure on the transfer substrate; bonding the tested piezoelectric element structure to a final target substrate or system; and removing the transfer substrate from the tested at least one piezoelectric element structure.