The study on the optimal operating voltage and pressure for the stable ejection using the electrostatic field induced MEMS inkjet head

Inkjet technology is already used in the manufacture of many electronic devices. During recent years, electrostatic induced inkjet print technology has turned theoretical research into a practical manufacturing solution. This paper presents a novel electrostatic field induced inkjet device featured by a MEMS fabricated nozzle with ring shaped control electrode and investigates the feasibility of applying the inkjet device to flexible electronics, micro bio chips and sensor devices manufacturing process. The electric voltage signal applied to a ring shaped electrode plate against the inside the nozzle allows a jet ejection to take place. This demonstrates a feasibility of electrostatic induced inkjet device as a disruptive alternative to conventional print heads.