Patent ID: 6241904
Filing Date: 2001-06-05
Classification: B41J,G06K,G11C,H04N

Abstract:
A method of manufacturing an ink jet printhead, the method comprising the steps of:(a) providing a semiconductor wafer having an electrical circuitry layer formed thereon;(b) depositing a first layer of a conductive material and etching the conductive material to define a static coil having predetermined interconnections with the electrical circuitry layer;(c) depositing and etching a first protective layer over the static coil;(d) depositing a second layer of conductive material and etching the second layer to define a moveable coil having predetermined interconnections with the electrical circuitry layer;(e) depositing and etching a second protective layer over the moveable coil;(f) depositing and etching a sacrificial material layer over the moveable coil;(g) depositing an inert material over the sacrificial material layer and etching the inert material to form a nozzle chamber around the static and moveable coils;(h) etching an ink supply channel to be in communication with the nozzle chamber; and(i) etching away the sacrificial material.