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A Study on Properties of UV-Curing Silver Paste by Dispersing Agent Characteristic  

Son, Min-Jeong (Dept. of Graphic Arts Information, College of Engineering, Pukyong National University)
Nam, Su-Yong (Dept. of Graphic Arts Information, College of Engineering, Pukyong National University)
Kim, Sung-Bin (Dept. of Graphic Arts Information, College of Engineering, Pukyong National University)
Publication Information
Journal of the Korean Graphic Arts Communication Society / v.30, no.2, 2012 , pp. 59-68 More about this Journal
Abstract
As one of the eletronic device industries has been developed by using a recent printing method, the consumption of Ag paste has been on the rise as well. The printing method has simple processes in comparison with other methods. Also it enables to be large-scaled and to lower price ranges. If UV curing system would be applied to the printing method, energy consumption and dangerousness from curing system can be minimized in a short period of time so that its method can be more eco-friendly. This study conducted an experiment in order to make UV curing Ag paste which is feasible to implement micro patterns with different dispersing agents. The purpose of the study is to analysis the suitable printability for micro pattern and to test dispersibility, hardening properties, conductivity and adhesive stength by measuring viscosity, TI(thixotropy index), G', G", $tan{\delta}$(G"/G') after making paste. We have experimented with four dispersing agents. After We did an analysis of characteristic of rheology, conductivity and adhesive stength, etc, We confirmed that the paste added FP 3060 has excellent dispersibility, conductivity and adhesive stength. If the paste has excellent dispersibility, we will expect that micro pattern is made by that.
Keywords
Ag paste; UV curing system; printability; dispersing agent; micro pattern;
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