Patent ID: 7152290
Filing Date: 2006-12-26
Classification: B41J,H01L,Y10T

Abstract:
1. A method of manufacturing a piezoelectric actuator, comprising: preparing a substrate, which is adapted to be a vibration plate actuated by a piezoelectric element; defining cutting lines corresponding to a plurality of chip regions on the substrate, each of the chip regions being adapted to be the piezoelectric actuator; forming a first common electrode of the piezoelectric element on the substrate, so as to avoid the cutting lines; forming a first piezoelectric layer of the piezoelectric element on the first common electrode; forming a drive electrode of the piezoelectric element on the first piezoelectric layer, so as to avoid the cutting lines; forming a second piezoelectric layer of the piezoelectric element on the drive electrode; forming a second common electrode of the piezoelectric element on the second piezoelectric layer, so as to avoid the cutting lines; and cutting completely the substrate along the cutting lines with a cutting blade so as to avoid the first common electrode, the second common electrode and the drive electrode, thereby separating each of the chip regions from each other.