PIEZOELECTRIC RESONATOR AND METHOD OF MANUFACTURING THE SAME

摘要

A piezoelectric resonator comprising a piezoelectric body layer (101) formed of a piezoelectric thin film, a first electrode (102) formed on one principal plane of the piezoelectric body layer (101) and formed, in cross section, in a trapezoidal shape with a longer side on its side in contact with the piezoelectric body layer (101) and a second electrode (103) formed on the other principal plane of the piezoelectric body layer (101) and formed, in cross section, in a trapezoidal shape with a longer side on its side in contact with the piezoelectric body layer (101).