Patent ID: 7401884
Filing Date: 2008-07-22
Classification: B41J,G06F,G06K,G07F,G11C,H04N

Abstract:
1. An inkjet drop ejection apparatus comprising: a chamber with a side wall and a nozzle wall, the nozzle wall defining an ink ejection nozzle; and, an actuator for ejecting drops of ink through the nozzle; a wafer substrate having a planar surface for supporting the chamber and the actuator, the chamber and actuator being fabricated on the wafer substrate by lithographic etching and deposition techniques; wherein, the nozzle wall and the side wall integrally formed by a single deposition process such that the nozzle wall has a planar section around the ink ejection nozzle, the planar section being parallel to and spaced from the planar surface of the wafer substrate.