Patent ID: 7910010

Claim:
A method of manufacturing an inkjet head having an electrostatic actuator comprising a stator and a rotor by joining a processed glass substrate onto a processed SOI substrate, and then forming metal patterns which are used as wiring to produce the electrostatic actuator on the glass substrate, wherein the method of processing the SOI substrate comprises: (a- 1 ) forming a PR (Photo Resist) coating layer on a SOI (Silicon on Insulator) substrate comprising an oxide layer; (a- 2 ) forming a pattern of the electrostatic actuator on the PR (Photo Resist) coating layer (PR patterning); (a- 3 ) forming the stator and the rotor by etching a silicon layer of the SOI substrate up to the oxide layer according to the pattern formed in step (a- 2 ); and (a- 4 ) wet etching the parts of the oxide layer on which the rotor is formed, using a dilute HF solution; and wherein the method of processing the glass substrate comprises: (b- 1 ) attaching a DFR (Dry Film Resistor) to the upper face of the glass substrate by themio compression; (b- 2 ) forming a cavity onto parts of the glass substrate corresponding to the rotor; and (b- 3 ) perforating parts of the glass substrate corresponding to the stator.