Patent ID: 8567910
Filing Date: 2013-10-29
Classification: B41J,H01L

Abstract:
1. A method of forming a nozzle plate of a fluid ejection device, comprising: etching a bore in a first side of a multi-layer substrate, the bore extending from the first side towards a second side of the multi-layer substrate opposite to the first side without being open to the second side; forming a liner in the bore, the liner having a bottom surface and walls surrounding a hollow space within the bore, the bottom surface and at least portions of the walls forming a closed end separating the hollow space from the multi-layer substrate; removing a layer from the second side of the multi-layer substrate, wherein the removing exposes the closed end of the liner at the second side without exposing the hollow space at the second side; applying a non-wetting coating to the closed end of the liner and an area surrounding the closed end of the liner; and removing the closed end of the liner, wherein removing the closed end of the liner opens a nozzle connected to the hollow space.