| 摘要 |
PURPOSE:To surely connect and insulate external electrodes to and from internal electrodes in a laminated piezoelectric element used as an actuator. CONSTITUTION:Conductive projecting sections 16 are formed at every other layer on the side face of a laminated body constituted by alternately piling up piezoelectric material films 11 and internal electrodes 12 and an insulating film 13 containing glass beads 17 is formed in the laminating direction of the laminated body so that the film 13 can cover all piezoelectric material films 11. In addition, copper foil 15 carrying conductive particles 31 adhering to the surface of the foil 15 is formed on the film 13 as external electrodes and the external electrodes are electrically connected to the internal electrodes 12 through the projecting sections 16. |
