Remes, K., Järvenpää, A., Fabritius, T. (2019) Contactless online characterization of large-area conductive thin films by thermography and induction. Optics Letters 44 (10), 2574-2577. https://doi.org/10.1364/OL.44.002574
Contactless online characterization of large-area conductive thin films by thermography and induction
|Author:||Remes, Kari1; Järvenpää, Antti2; Fabritius, Tapio1|
1Optoelectronics and Measurement Techniques, Faculty of Information Technology and Electrical Engineering, University of Oulu, Erkki Koiso-Kanttilankatu 3, 90570 Oulu, Finland
2Future Manufacturing Technologies, Kerttu Saalasti Institute, University of Oulu, Pajatie 5, 85500 Nivala, Finland
|Online Access:||PDF Full Text (PDF, 0.5 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2019081324112
Optical Society of America,
|Publish Date:|| 2020-05-15
Testing and characterization techniques intended for traditional electronics production are rarely compatible with modern large-area, thin film electronics manufacturing processes such as roll-to-roll fabrication. Online quality monitoring of conductive thin films is necessary for upscaling and maintaining high-yield production. Thermography has already shown its usefulness in these kinds of applications, but has suffered from the lack of proper non-contact electrical heating. Now a fully contactless quality inspection technique based on thermal imaging and induction heating is implemented and evaluated. This approach is capable of discovering defected areas and estimating conductivity degradation online with full coverage over conductive thin films.
|Pages:||2574 - 2577|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
Academy of Finland, Finnish Research Infrastructure 2018 (FIRI 2018) (320017).
|Academy of Finland Grant Number:||
320017 (Academy of Finland Funding decision)
© 2019 Optical Society of America. This is a post-peer-review, pre-copyedit version of an article published in Optics Letters. The final authenticated version is available online at: https://doi.org/10.1364/OL.44.002574.