Electrostatic Induced Inkjet Printing System for Micro Patterning and Drop-On-Demand Jetting Characteristics

Printing technology is a very useful method in the several process of industrial fabrication due to non-contact and fast pattern generation [1]. To make micro pattern, we investigate the electrostatic induced inkjet printing system for micro droplet generation and drop-on-demand jetting. In order to achieve the drop-on-demand micro droplet ejection by the electrostatic induced inkjet printing system, the pulsed DC voltage is supplied from 1.4 to 2.1 kV. In order to find optimal pulse conditions, we tested jetting performance for various bias and pulse voltages for dropon-demand ejection. For investigated drop-on-demand micro pattern characteristic, conductive inkjet silver ink used. In this result, we have successful drop-on-demand operation and micro patterning. Therefore, our novel electrostatic induced inkjet head printing system will be applied industrial area comparing conventional printing technology.