Thermography based online characterization of conductive thin films in large-scale electronics fabrication | Zendy

Kari Remes | Zendy; Kimmo Leppänen | Zendy; Tapio Fabritius | Zendy

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Thermography based online characterization of conductive thin films in large-scale electronics fabrication

Author(s) -

Kari Remes,

Kimmo Leppänen,

Tapio Fabritius

Publication year - 2018

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.001219

Subject(s) - electronics , materials science , indium tin oxide , fabrication , electrical conductor , homogeneity (statistics) , characterization (materials science) , thin film , flexible electronics , computer science , nanotechnology , electrical engineering , composite material , engineering , medicine , alternative medicine , pathology , machine learning

Flexible electronics is an emerging thin film based technology enabling completely new types of products and applications compared to conventional electronics. Since the quality of films defines the functionality of fabricated devices, the lack of suitable online manufacturing quality assessment tools has been identified to be a critical bottleneck while upscaling the volume and the yield of thin film electronics manufacturing. In order to solve that problem, a synchronized thermography (ST) based online measurement system was built. Applicability of proposed roll-to-roll compatible ST based system was demonstrated by characterizing a moving plastic film with conductive indium tin oxide on top. Obtained results show that ST can be utilized for online homogeneity characterization and sheet resistance estimation of large area thin films which are not possible with other existing methods.

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