| 摘要 |
PURPOSE:To form a favorable glass coated film by a method wherein, when glass powder is made to stick to the exposed parts of internal electrode layers by an electrophoresis method, the internal potential of parts of the exposed parts, where the glass powder is not stuck, is set at the same potential as that of an opposed electrode plate or at a potential close to that of the opposed electrode plate. CONSTITUTION:a laminated body 40 constituted by laminating alternately internal electrodes and electrostrictive material is placed in an electrified glass powder-containing suspension. The internal electrodes are made to expose at the end surfaces of the laminated body 40. A temporary external electrode 12 and a temporary external electrode 14 are provided at both sides of the laminated body 40 and the temporary external electrodes 12 and 14 are connected with the internal electrodes every one layer. A DC power source 33 is connected to the temporary external electrode 12 and an opposed electrode plate 31. The opposed electrode plate 31 and the temporary external electrode 14 are mutually connected and the opposed electrode plate 31 and the temporary external electrode 14 are both set at the same potential. By constituting in such a way, glass powder sticks to the internal electrodes connected with the temporary electrode 12 and the vicinities thereof. When this laminated body 40 is baked, the purposive insulating pattern can be accurately formed on the exposed electrodes, thereby enabling to improve the connection of the electrostrictive-effect element and external terminals. |
