Patent ID: 7293359
Filing Date: 2007-11-13
Classification: B41J,Y10T

Abstract:
1. A method for manufacturing a fluid ejection device comprising: providing a sacrificial structure overlying a portion a semiconductor substrate, the sacrificial structure having a shape configured to define an ink chamber, ink manifold, and a nozzle; providing a first metal substantially overlying the sacrificial structure and substantially overlying the substrate; and removing the sacrificial structure to form the ink chamber, ink manifold, and nozzle, wherein the sacrificial structure includes a first portion for defining the nozzle and a second portion for defining the ink chamber and ink manifold and is formed by depositing a first sacrificial material substantially overlying the substrate and a second sacrificial material substantially overlying the first sacrificial material, exposing the first sacrificial material to radiation before depositing the second sacrificial material, and removing a portion of the first and second sacrificial materials to form the sacrificial structure.