| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent insulation resistance at a high-temperature region of approximately 150°C from decreasing without reacting the oxidation of an internal electrode when manufacturing a laminated piezoelectric element, where the internal electrode is made of a base metal, such as Cu. <P>SOLUTION: In a method for manufacturing the laminated piezoelectric element, a piezoelectric ceramics layer and the internal electrode are laminated. The method comprises a baking process for baking a laminate in which ceramic composition powder in a prescribed composition, a piezoelectric ceramics layer precursor containing a binder, and an internal electrode precursor containing the base metal as a conductive material under a first reducing atmosphere; and a heat treatment process for heating the baked laminate under a second reducing atmosphere having oxygen partial pressure that is larger than that of the first reducing atmosphere. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
