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Fabrication of flex sensors through direct ink write technique and its electrical characterization

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Abstract

The present work is intended to fabricate low-cost flex sensor from conductive carbon paste using direct ink write (DIW) technique. DIW method is one of the additive manufacturing processes, which is capable to deposit a variety of material on a variety of substrates by a different mechanism to feature resolution at a microns level. It is widely used in the electronic industry for fabrication of PCBS and electrodes for different electronic devices. The DIW system in present study extrudes material stored in the syringe barrel through nozzle using compressed air. This mechanism will assist in creating patterns on a variety of substrates. Pneumatic controller is employed to control deposition of material, while computer-controlled X–Y stage is employed to control pattern generation. For effective and control patterning, printing parameters were optimized using Taguchi design optimization technique. The conductive carbon paste is used as ink for pattern generation on flexible PET substrate. Samples of flex sensor having different dimensions are prepared through DIW. The fabricated sensors were used as flexion sensor, and its electrical characteristic was evaluated. The obtained sensors are stable and reliable in performance.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Sarhad University of Science & Information Technology, Peshawar, Pakistan

    Muhammad Abas

  2. Faculty of Mechanical Engineering, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Pakistan

    Khalid Rahman

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  1. Muhammad Abas
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  2. Khalid Rahman
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Correspondence to Khalid Rahman.

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Abas, M., Rahman, K. Fabrication of flex sensors through direct ink write technique and its electrical characterization. Appl. Phys. A 122, 972 (2016). https://doi.org/10.1007/s00339-016-0507-8

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  • DOI: https://doi.org/10.1007/s00339-016-0507-8

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