Patent ID: 7178906
Filing Date: 2007-02-20
Classification: B41J,Y10T

Abstract:
1. Method of forming a droplet deposition apparatus comprising the steps: forming a substrate having one or more electrically conductive tracks, forming a body of piezoelectric material having a top surface and a bottom surface, providing one or more electrically conductive points on the bottom surface of said piezoelectric material comprising forming one or more depressions in said bottom surface of said piezoelectric material, locating a coating of conductive material in said depressions and further comprising subsequently filling said one or more depressions with a non-conductive material; attaching said body of piezoelectric material to said substrate with said bottom surface overlying said tracks and said electrically conductive points establishing electrical connection with said tracks for actuation of the piezoelectric material, and subsequently forming in said attached piezoelectric material at least on droplet ejection chamber.