| 摘要 |
<p>A piezoelectric film-type element comprises a piezoelectric operating layer constructed by successively and integrally forming and stacking, on a ceramic substrate (12), a single flat film-shaped lower electrode (16), a piezoelectric layer (18), and an upper electrode (20) comprising a plurality of alternately arranged strip electrodes (20a, 20b). The lower electrode (16) is designated as a first electrode, and the upper electrode (20) is designated as a second electrode. A first piezoelectric operating means is constructed by the first and second electrodes and the piezoelectric layer (18), while a second piezoelectric operating means is constructed by the second electrode and the piezoelectric layer (18). No other piezoelectric layer is stacked on the foregoing piezoelectric operating layer. Operating characteristics of the piezoelectric operating section can be sufficiently utilized by constructing the piezoelectric film-type element as described above. Thus it is possible to provide the piezoelectric film-type element which has excellent function, and which is allowed to have a compact size and to be operated at a low voltage. <IMAGE></p> |
