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Screen printing of silver nanoparticle suspension for metal interconnects

  • Energy and Environmental Engineering
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Abstract

Silver nanoparticle suspensions were synthesized by chemical reduction method using a formaldehyde reductant. Polyvinyl pyrrolidone (PVP) of two different molecular weights (M.W.=8,000 and 29,000) was used as a stabilizer for the suspensions. PVP of a smaller molecular weight could produce silver suspensions of nanoparticle size around 20 nm. Water-based conductive silver inks with different silver concentrations were prepared and tested for suitability for screen printing. We have successfully printed silver metal lines on glass substrates using a 400 mesh screen-mask with 60wt.% silver ink prepared in this study. Curing at a low temperature of 200 °C for an hour was found sufficient to reach the lowest resistivity value with the synthesized ink. For a line with a width and thickness of 0.5 mm and 2.12 μm, respectively, it exhibited a resistivity of 3.3×10−5 Ω·cm, which could serve as conducting lines for various electronic applications.

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Authors and Affiliations

  1. Department of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746, Korea

    Weiwei Yin, Dong-Hyun Lee, Jaesoo Choi & Sung Min Cho

  2. School of Display & Chemical Engineering, Yeungnam University, Gyeongsan, 712-749, Korea

    Chinho Park

Authors
  1. Weiwei Yin
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  2. Dong-Hyun Lee
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  3. Jaesoo Choi
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  4. Chinho Park
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  5. Sung Min Cho
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Correspondence to Sung Min Cho.

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Yin, W., Lee, DH., Choi, J. et al. Screen printing of silver nanoparticle suspension for metal interconnects. Korean J. Chem. Eng. 25, 1358–1361 (2008). https://doi.org/10.1007/s11814-008-0223-y

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  • DOI: https://doi.org/10.1007/s11814-008-0223-y

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