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Dr Wen-Kai Hsiao

Research Associate

Inkjet Research


Research interest

  • The impact, coalescing, and mixing of inkjet deposited drops on surfaces
  • Integration of product innovation and manufacturing process development


Kai Hsiao studied Mechanical Engineering with a B.S. from University of California, Santa Barbara and both M.S. and Ph.D. from Massachusetts Institute of Technology. After obtaining his doctoral degree in 2004, he worked briefly in MIT Media Lab developing an interactive digital media table (TView) before joining Alvatec, a start-up company in Austria specialising in processing alkali metal alloys for vacuum vapour source and insulation getter applications. He joined Inkjet Research Centre in April 2007 to study the dynamic deposition behaviour of picoliter sized ink drops on surfaces, with aim to help developing a new generation of inkjet-based digital manufacturing processes.


Kai has been appointed as Associate Lecturer in Engineering in Newnham College since September 2010.


Publications and presentations


  1. Gardiner, D.J., Hsiao, W.-K., Morris, S.M., Hands, P.J.W., Wilkinson, T.D., Hutchings, I.M., Coles, H.J., Printed photonic arrays from self-organized chiral nematic liquid crystals, Soft Matter (advance article), (2012)
  2. Hsiao, W.-K., Hoath, S.D., Martin, G.D., Hutchings, I.M., Aerodynamic Effects in Ink-Jet Printing on a Moving Web, Proc. NIP28, pp. 412-415 (2012)
  3. Betton, E.S., Hsiao, W.-K., Hoath, S.D., Martin, G.D., Hutchings, I.M., Jetting, Behavior of Ink-Jet Printed Drops on A Corona-Treated Polymeric Film Substrate, J. Imaging Sci. Technol. 55(5), 050606-050606-10 (2011)
  4. Hsiao, W.-K., Hoath, S.D., Martin, G.D., Hutchings, I.M., Jetting, In-Nozzle Meniscus Motion and Nozzle-Plate Flooding in an Industrial Drop-on-Demand Print Head, Proc. NIP27, pp. 66-69 (2011)
  5. Castrejon-Pita, J.R, Hoath, S.D., Castrejon-Pita, A.A., Morrison, N.F., Hsiao, W.-K., Hutchings, I.M., Ultra-High Speed Particle Image Velocimetry on Drop-on-Demand Jetting, Proc. NIP27, pp. 93-96 (2011)
  6. Vadillo, D.C., Hoath, S.D., Hsiao, W.-K., Mackley, M.R., The effect of inkjet ink composition on rheology and jetting behaviour, Proc. NIP27, pp. 568-572 (2011)
  7. Hoath, S.D., Hsiao, W.-K., Jung, S., Martin, G.D., Hutchings, I.M., Jetted Drop Speed, DoD Nozzle Diameter and Drive Amplitude, Proc. NIP 27, pp. 62-65 (2011)
  8. Hsiao, W.-K., Hoath, S.D., Martin, G.D., Hutchings, I.M., Jones, S. Chilton, N., Imbibition Dynamics of Nano-Particulate Inkjet Drops on Micro-Porous Media, Proc Nanotech 2011 Conference, Boston, USA (2011)
  9. Hsiao, W.-K., Martin, G.D., and Hutchings, I.M., Delivery and Deposition of Silver Nano-particle Ink by Inkjet Printing for Printed Electronic Applications, presented at European Congress and Exhibition on Advanced Materials and Processes (Euromat 2009), Glasgow, UK (2009)
  10. Hsiao, W.-K., Hoath, S.D., Martin, G.D., and Hutchings, I.M., Ink Jet Printing for Direct Mask Deposition in Printed Circuit Board Fabrication, J. Imaging Sci. Technol. 53(5), 050304-050304-8 (2009)
  11. Hsiao, W.-K., Chun, J.-H., and Saka, N., The Effects of Wetting and Surface Roughness on Liquid Metal Droplet Bouncing, J. Manuf. Sci. Eng. 131, 021010 (2009)
  12. Hsiao, W.-K., Martin, G.D., Hoath, S.D., and Hutchings, I.M., Ink Drop Deposition and Spreading in Inkjet-based Printed Circuit Board Fabrication, Proc. NIP24, pp. 667-670 (2008)
  13. Hsiao, W.-K., Chun, J.-H., and Saka, N., Effect of Surface Roughness on Droplet Bouncing in Droplet-based Manufacturing Processes, CIRP Annals – Manufacturing Technology 55(1), pp. 209-212 (2006)
  14. Chun, J.-H. and Hsiao, W., Effect of Surface Roughness on Solder Bump Formation by Direct Droplet Deposition, CIRP Annals – Manufacturing Technology 52(1), pp. 161-164 (2003)
  15. Chun, J.-H. and Hsiao, W., Bouncing of Molten Solder Droplets during Solder Bump Formation, Proc. ICEP, pp. 398-403 (2002)