Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지

A Statistical Analysis for Slot-die Coating Process in Roll-to-roll Printed Electronics

롤투롤 슬롯-다이 대면적 코팅 공정 최적화를 위한 통계적 모델링 방법

  • Park, Janghoon (Department of Mechanical Design and Production Engineering, KONKUK UNIV.) ;
  • Lee, Changwoo (School of Mechanical Engineering, CHANGWON Nat'l UNIV.)
  • Published : 2013.10.31
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Abstract

Recent advances in printing technology have increased the productivity of the roll-to-roll (R2R) printing process for printed circuitry. In the R2R printed electronics, characteristics of printed and coated layers are one of the most important issues that determine the functional quality of final products. The slot-die technology can coat a large area with high uniformity using low-viscosity materials; determining the process parameters is important to obtain excellent coating qualities. In this study, a viscocapillary model was used to predict qualities of coated layers and patterns. On the basis of analysis results, a novel meta model was derived using design of experiment methodology to improve accuracy. Sensitivity analysis was performed to define major parameters in R2R slot-die coating process. The coating speed was found to most significantly affect the coated layer thickness and was easily controlled. The performance of the proposed model is verified through experimental studies. Based on the statistical analysis results, R2R slot die process can be optimized to guarantee a desired thickness.

Keywords

References

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