| 摘要 |
<p>A process is described for preparing piezoelectric film using a corona discharge device wherein a multilayer of pellicles, of which at least one or more is a piezoelectric sensitive film (31) and at least one other of the multi-layer is a companion pellicle (71) (i.e. a pellicle with a conductance no less than that of the piezoelectric sensitive peliicle when the conductance is measured under the poling conditions of the corona discharge and in the direction of the discharge field), is subjected to a corona discharge between a pair of electrodes (35, 37), of which at least one such electrode (35) has a textured surface (43). </p> |
