| 摘要 |
PROBLEM TO BE SOLVED: To enhance adhesion strength of each external electrodes 30 and 31 to an insulating sheet 23 in a manufacturing method for a piezoelectric actuator 20 which is used as a drive source of an ink jet head. SOLUTION: Patterns of an independent electrode or common electrode are formed on surfaces of piezoelectric sheets 21a-21g and 22 with Ag-Pd type conductive paste while tubs 60 having patterns corresponding to the independent electrode or common electrode are formed on a surface of an insulating sheet 23 with the conductive paste. After a lamination body of these sheets 21a-21g, 22 and 23 is baked and formed, the external electrodes 30 for connecting to a flexible print cable are baked and formed in the tubs 60.
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