| 摘要 |
A stacked body block is formed in which electrode patterns (22A, 22B) and piezoelectric body sheets (21A, 21B) are stacked in a prescribed stacking direction, the stacked body block is fired, a voltage is applied between the electrode patterns (22A, 22B) which are adjacent in the stacking direction, and the stacked body block is segmented, forming stacked piezoelectric elements. In the piezoelectric body sheets (21A, 21B), element forming regions (23) are dispersed so as to form a matrix with an exclusion region (24) therebetween. The measurement of the gap between the end part of the electrode pattern (22A, 22B) in each element forming region (23) and the end part of the electrode pattern (22A, 22B) facing same in an in-plane direction is greater than the thickness measurement of the piezoelectric body sheets (21A, 21B). |
