Patent ID: 8394307

Claim:
A method for manufacturing a liquid discharge head having a flow path forming member for forming a liquid flow path which communicates with a discharge port for discharging liquid, the method comprising the steps of: (a) coating and patterning an adhesion layer containing a compound having a main chain portion having a structure represented by the following Formula (1) and a structure represented by the following Formula (2) onto a substrate comprising energy generation elements: where X, Y, A, and B each represent independently any one of a saturated hydrocarbon, an unsaturated hydrocarbon, and a substituted or non-substituted aromatic ring; (b) coating over the adhesion layer a photosensitive layer in which a photosensitive resin is dissolved into a solvent entirely of methyl acetoacetate or ethyl acetoacetate; (c) patterning the photosensitive layer into a mold having the shape of the desired flow path; (d) coating and patterning a layer which will become the flow path forming member having the discharge port so as to cover the mold and directly contact the adhesion layer; (e) forming a liquid supply port in the substrate so as to communicate with the desired flow path; and (f) removing the mold to form the flow path.