Patent ID: 7807079
Filing Date: 2010-10-05
Classification: B41J

Abstract:
1. A method of forming an orifice plate for a fluid ejection device, the method comprising: depositing and patterning a mask material on a conductive surface; forming a first layer on the conductive surface, the first layer including a metallic material; forming a second layer on the first layer, the second layer including a polymer material; and removing the first layer and the second layer from the conductive surface, wherein forming the first layer includes providing a first opening through the first layer to the mask material, and wherein forming the second layer includes depositing the polymer material over the first layer and within the first opening and forming a continuous layer of the polymer material with a substantial planar surface over the first layer and over the first opening, and further comprising providing a second opening through the second layer and removing the polymer material from within the first opening, the second opening communicated with the first opening and a minimum diameter of the second opening being greater than a minimum diameter of the first opening.