University of Oulu

J. Lauri, C. Liedert, R. Liedert and T. Fabritius, "Online Quality Assurance of Microchannels in Roll-to-Roll by Optical Coherence Tomography," 2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), Dubrovnik, Croatia, 2020, pp. 1-5, doi: 10.1109/I2MTC43012.2020.9128465

Online quality assurance of microchannels in roll-to-roll by optical coherence tomography

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Author: Lauri, Janne1; Liedert, Christina2; Liedert, Ralph2;
Organizations: 1Optoelectronics and Measurement Techniques Research Unit ,University of Oulu, Oulu, Finland
2VTT, Technical Research Centre of Finland, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.8 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2020-08-11


Roll-to-roll (R2R) process is an emerging technology to manufacture printed electronics, microfluidics, biochemical sensors etc. The requirements for high quality and small tolerances at the manufacturing phase are of the essence for such products. To verify the quality and guarantee the high production yield, high speed, non-destructive testing methods are needed. In this paper, optical coherence tomography (OCT) device is used at the R2R-line to measure online hot embossed microchannel structures at speed of 1 m/min, which is typical for the hot embossing process. The channel’s width and shape are determined along the web. The applicability of OCT for topography measurements is demonstrated in an actual R2R environment.

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Series: IEEE International Instrumentation and Measurement Technology Conference
ISSN: 2642-2069
ISSN-E: 2642-2077
ISSN-L: 2642-2069
ISBN: 978-1-7281-4460-3
ISBN Print: 978-1-7281-4461-0
Pages: 1 - 5
DOI: 10.1109/I2MTC43012.2020.9128465
Host publication: 2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)
Conference: IEEE International Instrumentation and Measurement Technology Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: J.L is partially supported by European Regional Development Fund (project: PrintoCent10, grant no. A73286). T.F is partially supported by Academy of Finland’s FIRI funding (grant no. 320017).
Academy of Finland Grant Number: 320017
Detailed Information: 320017 (Academy of Finland Funding decision)
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