용융 메탈 잉크젯 시스템

Molten Metal Inkjet System

  • 이택민 (한국기계연구원, 정보장비연구센터) ;
  • 강태구 (한국기계연구원, 정보장비연구센터) ;
  • 양정순 (한국기계연구원, 정보장비연구센터) ;
  • 조정대 (한국기계연구원, 정보장비연구센터) ;
  • 김광영 (한국기계연구원, 정보장비연구센터) ;
  • 김동수 (한국기계연구원, 정보장비연구센터)
  • Lee Taik-Min (IT Machinery Research Center, Korea Institute of Machinery & Materials) ;
  • Kang Tae-Goo (IT Machinery Research Center, Korea Institute of Machinery & Materials) ;
  • Yang Jeong-Soon (IT Machinery Research Center, Korea Institute of Machinery & Materials) ;
  • Jo Jeong-Dai (IT Machinery Research Center, Korea Institute of Machinery & Materials) ;
  • Kim Kwang-Young (IT Machinery Research Center, Korea Institute of Machinery & Materials) ;
  • Kim Dong-Soo (IT Machinery Research Center, Korea Institute of Machinery & Materials)
  • 발행 : 2006.05.01

초록

In this paper, we present a design, analysis, fabrication and performance test of the novel DoD metal-jet system for application to the high-density and high-temperature-melting materials. Based on the theoretical analysis, we design the metal-jet print head system and fabricate the metal-jet system, which can eject the droplet of lead-free metal solder in the high-temperature. In the experimental test, we set up the test apparatus for visualization of the droplet ejection and measure the Ejected droplet volume and velocity. As a result, the diameter, volume and the velocity of the ejected droplet are about $65-70{\mu}m$, 145-180 pl and 4m/sec. We also fabricate vertical and inclined 3D micro column structures using the present molten metal inkjet system. The measured geometries of the micro column structures are about height of $2,100{\mu}m$, diameter of $200{\mu}m$ and aspect ratio of 10.5 for vertical micro column and $1,400{\mu}m$ of height and $150{\mu}m$ of diameter for $65^{\circ}$-inclined micro column, respectively.

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