오프셋 인쇄에서 도전성 페이스트의 평판인쇄 적성에 관한 연구

Abstract

In this paper, lithographic printability of a conductive paste in offset printing was studied. Printed electronics has shorter process than photolithography process. Therefore, the purpose of this experiment is to decrease manufacturing costs and toxic substance with high speed printing and mass production by using offset roll to roll printing. In this experiment two types of different viscosity of silver paste mixed with varnish have been used. It has increased printability such as optical density, fine line width, paste film thickness and amount of paste transfer. On the other hand as amount of varnish increased the value of specific resistance have increased. If conductive varnish is added into conductive paste, conductivity and printability will increase so it is expected that conductive paste will be applied in offset printing.