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Title: An inkjet vision measurement technique for high-frequency jetting

Abstract

Inkjet technology has been used as manufacturing a tool for printed electronics. To increase the productivity, the jetting frequency needs to be increased. When using high-frequency jetting, the printed pattern quality could be non-uniform since the jetting performance characteristics including the jetting speed and droplet volume could vary significantly with increases in jet frequency. Therefore, high-frequency jetting behavior must be evaluated properly for improvement. However, it is difficult to measure high-frequency jetting behavior using previous vision analysis methods, because subsequent droplets are close or even merged. In this paper, we present vision measurement techniques to evaluate the drop formation of high-frequency jetting. The proposed method is based on tracking target droplets such that subsequent droplets can be excluded in the image analysis by focusing on the target droplet. Finally, a frequency sweeping method for jetting speed and droplet volume is presented to understand the overall jetting frequency effects on jetting performance.

Authors:
; ;  [1];  [2]
  1. Department of Mechanical Engineering, Soonchunhyang University 22, Soonchunhyang-Ro, Shinchang, Asan Chungnam 336-745 (Korea, Republic of)
  2. Department of Electrical and Robot Engineering, Soonchunhyang University, 22, Soonchunhyang-Ro, Shinchang, Asan Chungnam 336-745 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22308851
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 85; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; DROPLETS; IMAGE PROCESSING; MANUFACTURING; MEASURING METHODS; PERFORMANCE; PRINTED CIRCUITS; PRODUCTIVITY; VISION

Citation Formats

Kwon, Kye-Si, Jang, Min-Hyuck, Park, Ha Yeong, and Ko, Hyun-Seok. An inkjet vision measurement technique for high-frequency jetting. United States: N. p., 2014. Web. doi:10.1063/1.4879824.
Kwon, Kye-Si, Jang, Min-Hyuck, Park, Ha Yeong, & Ko, Hyun-Seok. An inkjet vision measurement technique for high-frequency jetting. United States. https://doi.org/10.1063/1.4879824
Kwon, Kye-Si, Jang, Min-Hyuck, Park, Ha Yeong, and Ko, Hyun-Seok. 2014. "An inkjet vision measurement technique for high-frequency jetting". United States. https://doi.org/10.1063/1.4879824.
@article{osti_22308851,
title = {An inkjet vision measurement technique for high-frequency jetting},
author = {Kwon, Kye-Si and Jang, Min-Hyuck and Park, Ha Yeong and Ko, Hyun-Seok},
abstractNote = {Inkjet technology has been used as manufacturing a tool for printed electronics. To increase the productivity, the jetting frequency needs to be increased. When using high-frequency jetting, the printed pattern quality could be non-uniform since the jetting performance characteristics including the jetting speed and droplet volume could vary significantly with increases in jet frequency. Therefore, high-frequency jetting behavior must be evaluated properly for improvement. However, it is difficult to measure high-frequency jetting behavior using previous vision analysis methods, because subsequent droplets are close or even merged. In this paper, we present vision measurement techniques to evaluate the drop formation of high-frequency jetting. The proposed method is based on tracking target droplets such that subsequent droplets can be excluded in the image analysis by focusing on the target droplet. Finally, a frequency sweeping method for jetting speed and droplet volume is presented to understand the overall jetting frequency effects on jetting performance.},
doi = {10.1063/1.4879824},
url = {https://www.osti.gov/biblio/22308851}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 6,
volume = 85,
place = {United States},
year = {Sun Jun 15 00:00:00 EDT 2014},
month = {Sun Jun 15 00:00:00 EDT 2014}
}