| 摘要 |
<p>PURPOSE: To prevent the deterioration of the acoustic sensitivity of a device by making the interface between different kinds of materials removable by laminating a plurality of polarized piezoelectric films containing a prescribed copolymer by evaporating a solvent. CONSTITUTION: After a solution layer 12 for solvent welding containing a copolymer of a vinylidene fluoride and trifluoroethylene and a solvent is applied to the main surface of a polarized piezoelectric film 10, another polarized piezoelectric film 14 is laminated upon the film 10 by drying the solvent from the layer 12 in the air. Then, after another solution layer 16 is applied to the surface of the film 14, a third polarized piezoelectric film 18 is laminated upon the film 14. After a desired number of polarized piezoelectric films is laminated upon another, a laminated piezoelectric structure is obtained by forming electrodes 20 and 22 on the exposed surfaces of the films 10 and 18.</p> |
