Patent ID: 8746846

Claim:
A method for producing a nozzle plate, comprising: forming, on one surface of a work substrate, a first concave portion which becomes a discharge port and a second concave portion which becomes a feed port, the discharge port and the feed port of a nozzle for discharging a droplet; bonding a support substrate to the one surface of the work substrate; making the work substrate thinner from the other surface thereof so that the work substrate has a necessary thickness; forming a water-repellent film on the other surface of the work substrate and in the first and second concave portions and then pasting an island-shaped tape on the other surface of the work substrate; removing the water-repellent film on the periphery of the other surface of the work substrate; peeling off the support substrate from the work substrate; performing primer treatment (enhancing adhesion of an adhesive) on the periphery of the other surface of the work substrate; and peeling off the island-shaped tape.