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Distortion of Printed Patterns in Printed Electronics  

Kim, Chung-Hwan (한국기계연구원 정보장비연구센터)
Lee, Taik-Min (한국기계연구원 정보장비연구센터)
Kim, Dong-Soo (한국기계연구원 정보장비연구센터)
Choi, Byung-Oh (한국기계연구원 지능형정밀기계연구본부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.24, no.8, 2007 , pp. 74-80 More about this Journal
Abstract
The distortion of printed pattern is frequently observed in gravure offset printing process, which can be a serious problem in printing process for printed electronics. The mechanism of pattern distortion is studied and the factors which affect the amount and shape of distortion are found using FEM. The amount and shape of distortion is influenced by material properties of the roller, thickness of roller, applied load, and so on. As the printing pressure increases and Possion ratio increases, the degree of the image distortion increases. And the increase of the thickness of rubber roller brings a large distortion of image, too. In some cases, the distortion of printed pattern can reach a few hundred micromillimeters. The comparison of the experiment result and the simulation result shows good agreement in their quantitative tendency.
Keywords
Printed Pattern; Distortion; Printed Electronics; Printing;
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