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7 March 2019 All-optical difference engine for in-process defect inspection for roll-to-roll printed electronics
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Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 1105308 (2019) https://doi.org/10.1117/12.2511140
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China
Abstract
The increasing capabilities of roll-to-roll (R2R) printing processes present challenges for quality control, requiring inprocess inspection of large substrates with high resolution at high speed. In this paper, an all-optical difference engine (AODE) sensor has been developed for in-process defect inspection for R2R printed electronics. The AODE sensor achieves high-speed inspection by utilising the principle of coherent optical subtraction to minimise data processing. The capability of the developed sensor is demonstrated using industrial printed electrical circuity samples and the sensor is capable of inspecting areas of 4 mm width with a resolution of the order of several micrometres.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaobing Feng, Rong Su, Tuomas Happonen, Jian Liu, and Richard Leach "All-optical difference engine for in-process defect inspection for roll-to-roll printed electronics", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 1105308 (7 March 2019); https://doi.org/10.1117/12.2511140
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