Patent ID: 6974548
Filing Date: 2005-12-13
Classification: B41J

Abstract:
1. A method of fabricating a fluid ejector comprising: depositing a plurality of thin film layers on a first surface of a printhead substrate, the plurality of thin film layers forming a thin film membrane, at least one of the layers forming a plurality of fluid ejection elements; etching the printhead substrate to provide the thin film membrane with a cantilevered section; etching an elongated gap through the plurality of thin film layer to provide the thin film membrane with a floating section, the floating section being at least partially detached from the cantilevered section and separated from the cantilevered section by the elongated gap; forming an orifice layer on the thin film membrane; forming at least one opening in a second surface of the substrate, the at least one opening providing a fluid path from the second surface through the substrate; wherein the orifice layer supports the floating section of the thin film membrane over the at least one opening in the substrate, the cantilevered section being substantially supported by the substrate; and forming a plurality of fluid feed holes in the floating section of the thin film membrane.