Patent ID: 9168750
Filing Date: 2015-10-27
Classification: B41J

Abstract:
1. A manufacturing method of a liquid discharging head including a substrate, in which a liquid supply port is formed, having an energy-generating element on a first face side, and a channel forming member configured to form a channel and a discharge port, the method comprising: preparing the substrate having the energy-generating element and a resin layer on the first face side; irradiating a laser beam on the substrate so as to pass through the resin layer to form a hole serving as the liquid supply port in the substrate; removing a portion of the resin layer including a region which the laser beam has penetrated, thereby forming a portion from which the resin layer has been removed as a channel, and forming a portion in which the resin layer remains as a side wall; and forming a discharge port forming member, after the removing the portion of the resin layer, on a far side from the substrate of the side wall, and to form the channel forming member using the side wall and the discharge port forming member.