Patent ID: 8173203
Filing Date: 2012-05-08
Classification: B41J

Abstract:
1. A method of manufacturing a piezoelectric actuator, comprising: providing a base member including: forming a recess portion in the stacking surface of the vibration plate at a position corresponding to the non-interference portion; filling a filler, which thermally decomposes at a first temperature, in the recess of the vibration plate; forming a stacked body including the vibration plate, the piezoelectric layer, and the filler by forming the piezoelectric layer on the stacking surface of the vibration plate; heating the stacked body to a temperature equal to or higher than the first temperature to thermally decompose the filler and to remove the filler and a portion of the piezoelectric layer located on a surface of the filler; and forming a first electrode arranged on one surface of the piezoelectric layer and a second electrode arranged on the other surface of the piezoelectric layer.