Patent ID: 8082640
Filing Date: 2011-12-27
Classification: B41J,H01L,Y10T

Abstract:
1. A method for manufacturing a piezoelectric/electrostrictive element structure having a piezoelectric/electrostrictive film, and first and second electrodes between which said piezoelectric/electrostrictive film is sandwiched, the method comprising the steps of: forming a buffer layer on a substrate at least having a monocrystal surface, said buffer layer including a first oriented grown portion; forming said first electrode on said buffer layer, said first electrode including a second oriented grown portion corresponding to said first oriented grown portion; forming a piezoelectric/electrostrictive layer on at least said first electrode, said piezoelectric/electrostrictive layer including a first piezoelectric/electrostrictive portion disposed over said second oriented grown portion, and a second piezoelectric/electrostrictive portion not disposed over said second oriented grown portion, said first piezoelectric/electrostrictive portion and said second piezoelectric/electrostrictive portion being distributed in a direction perpendicular to a thickness direction of said piezoelectric/electrostrictive layer, a degree of orientation of said first piezoelectric/electrostrictive portion being higher than a degree of orientation of said second piezoelectric/electrostrictive portion; and removing said second piezoelectric/electrostrictive portion from said piezoelectric/electrostrictive layer so as to form said piezoelectric/electrostrictive film from said first piezoelectric/electrostrictive portion.