Patent ID: 8105761

Claim:
A method of manufacturing a liquid discharge head, which includes a flow path forming member configured to form a flow path communicating with a discharge port to discharge liquid, the method comprising: providing a first layer which includes a photosensitive resin and a light absorption agent on a substrate; patterning the first layer to form a patterned first layer corresponding to the discharge port; providing a second layer which includes a positive photosensitive resin but substantially does not include the light absorption agent on the substrate, so as to coat a surface of the patterned first layer; forming a pattern having a shape corresponding to the flow path by performing a patterning process including exposure of a portion of the second layer; providing a layer which becomes the flow path forming member on the substrate, so as to coat the pattern; forming the discharge port by performing a patterning process including exposure of the layer which becomes the flow path forming member, wherein the light absorption agent included in the first layer absorbs light having a wavelength used in the exposure of the layer which becomes the flow path forming member; and forming the flow path by removing the pattern.