Korean Journal of Chemical Engineering

, Volume 25, Issue 6, pp 1358–1361

Screen printing of silver nanoparticle suspension for metal interconnects

  • Weiwei Yin
  • Dong-Hyun Lee
  • Jaesoo Choi
  • Chinho Park
  • Sung Min Cho
Energy and Environmental Engineering
  • 721 Downloads

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.

Key words

Silver Nanoparticle Screen Printing PVP Conductive Ink 

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Copyright information

© Springer 2008

Authors and Affiliations

  • Weiwei Yin
    • 1
  • Dong-Hyun Lee
    • 1
  • Jaesoo Choi
    • 1
  • Chinho Park
    • 2
  • Sung Min Cho
    • 1
  1. 1.Department of Chemical EngineeringSungkyunkwan UniversitySuwonKorea
  2. 2.School of Display & Chemical EngineeringYeungnam UniversityGyeongsanKorea

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