Effect of Charge Accumulation and Dielectric Polarization on EHD Patterning on Non-Conductive Substrates

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Despite its merits in printing fine patterns, finer than the nozzle diameter used, and in employing high viscosity of ink [1], Electro-Hydro-Dynamic (EHD) printing is yet to be widely adopted due mainly to the charge induced disturbances in patterning, especially, on non-conductive substrates. This paper investigates how the charges accumulated on and the dielectric polarizations induced in a non-conductive substrate affect the quality of EHD patterning by distorting electric field vectors and, thus, scattering the satellites/sprays generated at the meniscus tip [2, 3].

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Journal: TechConnect Briefs
Volume: 4, Advanced Manufacturing, Electronics and Microsystems: TechConnect Briefs 2015
Published: June 14, 2015
Pages: 396 - 399
Industry sectors: Advanced Materials & Manufacturing | Sensors, MEMS, Electronics
Topics: Inkjet Design, Materials & Fabrication
ISBN: 978-1-4987-4730-1