Patent ID: 7069656
Filing Date: 2006-07-04
Classification: B41J,Y10T

Abstract:
1. A method of manufacturing a monolithic ink-jet printhead comprising: (a) preparing a substrate; (b) forming a barrier wall made of a predetermined material different from a material of the substrate; (c) integrally forming a nozzle plate including a plurality of material layers and having a nozzle penetrating the plurality of material layers, and forming a heater and a conductor connected to the heater between the material layers; (d) forming an ink chamber defined by the barrier wall by etching the substrate exposed through the nozzle using the barrier wall as an etch stop; (e) forming a manifold for supplying ink by etching a rear surface of the substrate; and (f) forming an ink channel by etching the substrate so that the ink channel penetrates the substrate between the manifold and the ink chamber.