Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Phase Matching of Pressure Wave in a Drop-On-Demand Inkjet Print Head

요구 적출형 잉크젯 프린트 헤드에서의 압력파 위상 정합

  • 김명기 (한국생산기술연구원 마이크로시스템 팀) ;
  • 황준영 (한국생산기술연구원 마이크로시스템 팀) ;
  • 이상호 (한국생산기술연구원 마이크로시스템 팀) ;
  • 강경태 (한국생산기술연구원 마이크로시스템 팀) ;
  • 강희석 (한국생산기술연구원 마이크로시스템 팀)
  • Published : 2008.09.01
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Abstract

Inkjet printing technology with a drop-on-demand (DOD) inkget head technology has been recognized as one of versatile and low cost manufacturing tools in the electronics industry. Concerned with control of driving signal, however, general strategy to optimize jetting stability has not been understood well, because of the inherent complex multi-physics nature in inkjet phenomena. Motivated by this, present study investigates the effect of driving waveforms of piezoelectric head on jetting characteristics of DOD inkjet system focused on jetting stability with phase matching of pressure waves in the print head. The results show that velocities and volumes of the ink jetted droplets were linear relations with the driving signal's maximum voltage, while periodic behaviors are observed with the driving signal's pulse widths.

Keywords

References

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