Drop-On-Demand Inkjet Printing of SU-8 Polymer

Title: Drop-On-Demand Inkjet Printing of SU-8 Polymer

Volume: 1 Issue: 1

Author(s): Vahid Fakhfouri, Gregory Mermoud, Joo Yeon Kim, Alcherio Martinoli and Juergen Brugger

Affiliation:

Keywords: Inkjet, drop-on-demand, SU-8, self-assembled monolayer, functional materials

Abstract: This paper presents drop-on-demand inkjet printing of SU-8 on functionalized surfaces for direct printing of computer controlled polymer patterns. The high viscosity of SU-8 required an in-depth investigation of the print parameters such as pulse amplitude, pulse length and temperature in the piezo-actuated nozzle. The results show that the optimal drop velocity to obtain a stable printing is ∼2 ms-1 which corresponds to pulse amplitude and length of 220 V and 70-80 μs, respectively. The diameter of the SU-8 drop was reduced from 117 μm on non-treated silicon to 58 µm on a surface terminated by a silane-based self-assembled monolayer.

Cite this article as:

Fakhfouri Vahid, Mermoud Gregory, Kim Yeon Joo, Martinoli Alcherio and Brugger Juergen, Drop-On-Demand Inkjet Printing of SU-8 Polymer, Micro and Nanosystems 2009; 1 (1) . https://dx.doi.org/10.2174/1876402910901010063