Patent ID: 7014785

Claim:
A method of fabricating an inkjet nozzle on a wafer substrate, the nozzle comprising: a nozzle chamber, the nozzle chamber including a roof having an aperture defined therein, and sidewalls extending from the roof to the substrate an actuator positioned in the nozzle chamber for ejecting ink through the aperture; and control circuitry for controlling the actuator, the method comprising the steps of: (a) providing a wafer substrate having control circuitry formed thereon; (b) depositing first sacrificial material on the wafer; (c) forming the actuator on the first sacrificial layer such that the actuator electrically connects with the control circuitry; (d) depositing second sacrificial material over the actuator; (e) defining openings in the second sacrificial material, the openings defining the positions of chamber sidewalls; (f) depositing roof material over the second sacrificial material and into the openings; (g) defining an aperture in the roof material; and (h) removing the first and second sacrificial materials.