Hybrid on demand jetting system for ultra fine droplet based on electrohydrodynamic and piezoelectric actuation

Kim Young-Jae, Lee Jun-Sung, Kim Sang-Yoon, Park Sung-Eun, Hwang Jungho, Kim Yong-Jun

Research output: Contribution to journalConference article

2 Citations (Scopus)


This paper demonstrates a hybrid jetting system (HJS) using both electrohydrodynamic (EHD) force and mechanical actuation to generate ultra fine droplets with drop on demand (DOD). In the proposed HJS, liquid meniscus was formed by a piezoelectric actuator and jets were generated by EHD force. Jetting characteristics were also examined for hydrophobicity and hydrophilicity of a surface of a capillary. With the HJS, on demand jetting of femto-liter was achieved with a frequency of 5 kHz.

Original languageEnglish
Article number4805426
Pages (from-to)491-494
Number of pages4
JournalProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Publication statusPublished - 2009 Jun 1
Event22nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2009 - Sorrento, Italy
Duration: 2009 Jan 252009 Jan 29


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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