Design of a gap-adjustable inkjet printing system for dense and high-temperature-melting materials

Taik-Min Lee; Jeong-Dai Jo; Hyun-Sub Kim; Young-Bok Ham; So-Nam Yoon; Kwang-Young Kim

doi:10.1117/12.575964

31 January 2005 Design of a gap-adjustable inkjet printing system for dense and high-temperature-melting materials

Taik-Min Lee, Jeong-Dai Jo, Hyun-Sub Kim, Young-Bok Ham, So-Nam Yoon, Kwang-Young Kim

Proceedings Volume 5624, Semiconductor and Organic Optoelectronic Materials and Devices; (2005) https://doi.org/10.1117/12.575964
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

Inkjet printing technology has begun to get into the spotlight in many ways due to the superior price competitiveness to existent semi-conductor process. This paper will introduce a newly devised gap adjustable inkjet printing system for dense and high-temperature-melting materials such as metal paste. The design on the gap adjustable inkjet printing system is discussed in detail for precise control of the size and spacing of the injected metal droplets. Analytic optimization and effects of design parameters are examined and computational work using the axis-symmetric, incompressible, multiphase equations is carried out to predict characteristics of the metal paste jetting and to design optimal micro nozzle prototype. From this analysis, droplet trajectory visualization and velocity vector of ejected droplet have been investigated to characterize the relationship between inlet condition and nozzle profile. Finally, the designed gap adjustable inkjet printing system is fabricated and its peformances are tested according to the change of various gap distances and the droplet characteristics are measured in the view point of precise droplet controllability and productivity.

Citation Download Citation

Taik-Min Lee, Jeong-Dai Jo, Hyun-Sub Kim, Young-Bok Ham, So-Nam Yoon, and Kwang-Young Kim "Design of a gap-adjustable inkjet printing system for dense and high-temperature-melting materials", Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); https://doi.org/10.1117/12.575964

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KEYWORDS

Metals

Ferroelectric materials

Printing

Inkjet technology

Actuators

Control systems

Manufacturing

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