Journal
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
Volume 13, Issue 7, Pages 1107-1112Publisher
KOREAN SOC PRECISION ENG
DOI: 10.1007/s12541-012-0145-9
Keywords
Nano-particle deposition system; Solvent-free; Low energy process
Funding
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and technology [2009-0087380]
- Korea government (MEST) [2011-0029862]
- National Research Foundation of Korea [2009-0087380, 핵C6A1502] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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With increasing concerns of environmental issues in manufacturing process, energy efficient and waste free manufacturing processes have been widely studied. In the field of nano/micro manufacturing, many research results of direct writing processes such as ink jet printing, gravure printing, and rapid prototyping processes have been reported to remove waste-producing conventional lift-off process for patterning. In addition, the use of toxic solvents such as acetone, toluene, xylene and so on has been decreased. At the same time, energy efficiency becomes one of environmental issues in manufacturing process. In this research, Nano particle deposition system (NPDS), a dry spray deposition process for fabrication of meta and ceramic direct patterning at room temperature, was introduced according to the environmental aspects. In previous studies, NPDS has shown the feasibility of the depositions of metals such as Sn and Ni, and the depositions of ceramics such as Al2O3, and TiO2 by spraying powders under low vacuum condition. The advantages of NPDS are 1) solvent free dry deposition process, 2) relatively low energy consumption with room temperature and low vacuum process condition, and 3) direct patterning process. The energy consumption in NPDS was briefly compared with similar processes including aerosol deposition and cold spray. The direct patterning results with 200 mu m width line pattern using micro-nozzle were fabricated without any post-processes. These results confirmed NPDS can become a solvent-free energy efficient direct patterning process for metals and ceramics.
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