Patent ID: 6594875
Filing Date: 2003-07-22
Classification: C01G,C01P,C04B,H01L,Y10T

Abstract:
A method for producing a piezoelectric/electrostrictive actuator comprising the steps of:preparing a vibrating plate made of metal; preparing ceramic oxide powder having a grain size of 5 &mgr;m or less and containing lead (Pb) and titanium (Ti) as basic elements thereof, said ceramic oxide powder being produced by a non-explosive oxidative-reductive combustion reaction carried out at a temperature of 100 to 500Â° C., preparing an organic solvent or water-based ceramic sol solution containing constituent ceramic elements identical or similar to those of said ceramic oxide powder, and mixing said ceramic oxide powder with said organic solvent or water-based ceramic sol solution, thereby producing ceramic paste; applying a piezoelectric/electrostrictive film of a thickness in a range below 100 &mgr;m on said vibrating plate using said ceramic paste; thermally treating the resulting structure obtained after the formation of said piezoelectric/electrostrictive film at a temperature in a range below 300Â° C., to bake said piezoelectric/electrostrictive film to the thickness applied on said vibrating plate all at once; and forming an upper electrode on said piezoelectric/electrostrictive film.