Patent ID: 8128204
Filing Date: 2012-03-06
Classification: B41J,Y10T

Abstract:
1. A method for manufacturing a liquid ejection head, the liquid ejection head comprising: a substrate having, above one side thereof, an energy generating element configured to generate an energy used to eject liquid; an ejection port from which a liquid is ejected, the ejection port being located at a position corresponding to the energy generating element; a liquid channel which is in communication with the ejection port, the liquid channel penetrating the substrate from the one side to another side of the substrate; and a supply port in communication with the liquid channel, the method comprising the steps of: forming the energy generating element and forming a projecting layer above the one side such that the layer is formed of a same material as that of the energy generating element extending inward of an inner peripheral portion of an opening in the supply port in the one side; and forming the supply port in the substrate.