Patent ID: 7882607
Filing Date: 2011-02-08
Classification: B41J,H01L,Y10T

Abstract:
1. A method of manufacturing an actuator device comprising: forming a Zr layer on one surface of a substrate; forming a ZrO forming a lower electrode on top of the ZrO forming a piezoelectric layer on top of the lower electrode; and forming an upper electrode on top of the piezoelectric layer, wherein, in forming the Zr layer, the Zr layer is formed through crystal growth of Zr, and the Zr layer thus formed has special crystal regions that protrude from an opposite surface of the Zr layer from the substrate, each special crystal region having a height of 10 to 100 nm and a diameter of 0.1 to 1 μm when viewed from above, and the special crystal regions existing with a density of 1.0×10