2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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Clean Technology 2008

Fabrication of nanoscale nozzle for electrostatic field induced inkjet head and test of drop-on-demand operation

V.D. Nguyen, D. Byun, S. Bui, Q. Tran, M. Schrlau, H.H. Bau, S. Lee
Konkuk University, KR

Keywords:
electric field induced inkjet head, nanoscale nozzle, nanoscale patterning

Abstract:
Printing technology is considered to be a key technology even in the fields of electronics, materials processing, and biotechnology. However there is a genuine need for nano-to-macro integration technology for printing. This paper presents the fabrication of nanoscale nozzle and patterning by means of electrostatic field induced drop-on-demand inkjet printing system, to overcome the limitation and problem of conventional thermal and piezoelectric print heads described above. When the meniscus of liquid is subject to strong electric field, electric charge is induced on the meniscus and electrostatic force elongates the liquid to form a droplet. The electrostatic field induced inkjet printhead can generate very tiny droplet smaller than nozzle size because the droplet is detached from the tip of the meniscus. Therefore, if we make sub-microscale nozzle, we can generate nanoscale droplets and write any dot, line, or geometries controlling the ejection of the droplet. We fabricated the inkjet head system using the quatrz capillary, and analyzed the electrostatic drop-on-demand ejection from this system. And we can pattern line by using this device.


Nanotech 2008 Conference Program Abstract