Importance

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Abstract

A manufacturing method for a liquid discharge head that includes a discharge port forming die member, where discharge ports for discharging liquid are formed, and liquid flow paths that communicate with the discharge ports, includes the steps of mounting, on a substrate, a first side wall forming member for forming portions of side walls of the liquid flow paths, forming, on the first side wall forming member, a first photosensitive material layer that serves as a second side wall forming member for formation of the other portions of the side walls, patterning the first photosensitive material layer to provide the second side wall forming member, forming, on the second side wall forming member, a second photosensitive material layer that serves as the discharge port forming member, and patterning the second photosensitive material layer to provide the discharge ports.

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First Claim