Structuring of micro line conductor using electro-hydrodynamic printing of a silver nanoparticle suspension

Lee, Deuk Yong; Hwang, Eung-Soo; Yu, Tiantang; Kim, Y.J.; Hwang, Jungho

doi:10.1007/s00339-005-3452-5

Cited by 46 publications

(24 citation statements)

References 12 publications

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“…In the previous fabrication of electronic devices, the successive procedure of deposition, lithography and etching is required to make patterns on a wafer. On the other hand, in the direct writing approach, patterns or structures can be obtained directly without the use of masks photography and chemicals for etching, and thus it is low cost, high-speed, non-contact and environmentally friendly [2]. For the direct-printed conductive patterning, a silver nanoparticle suspension is widely used as an ink, which is made by dispersing Ag particles with a mean diameter of 40 nm into water [3].…”

Section: Introductionmentioning

confidence: 99%

Control of droplet formation for low viscosity fluid by double waveforms applied to a piezoelectric inkjet nozzle

Shin

Sung

Lee

2011

Microelectronics Reliability

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Section: Introductionmentioning

confidence: 99%

Control of droplet formation for low viscosity fluid by double waveforms applied to a piezoelectric inkjet nozzle

Shin

Sung

Lee

2011

Microelectronics Reliability

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“…However, it is costly and physically challenging to improve resolution by reducing nozzle dimension. Meanwhile, electrohydrodynamic printing was introduced as an alternative printing method to achieve better resolution [19]. Electrohydrodynamic theory was first discovered by Zeleny back in 1910s [20].…”

Section: Introductionmentioning

confidence: 99%

Direct Printing and Electrical Characterization of Conductive Micro-Silver Tracks by Alternating Current-Pulse Modulated Electrohydrodynamic Jet Printing

Qin

Wei

Dong

et al. 2016

Journal of Manufacturing Science and Engineering

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In this paper, a rapid prototyping method for fabrication of highly conductive micropatterns on insulating substrates was developed and evaluated. Sub-20 lm microstructures were printed on flexible insulating substrates using alternating current (AC) modulated electrohydrodynamic jet (e-jet) printing. The presented technique resolved the challenge of current rapid prototyping methods in terms of limited resolution and conductivity for microelectronic components for flexible electronics. Significant variables of fabrication process, including voltage, plotting speeds, curing temperature, and multilayer effect, were investigated to achieve reliable printing of silver tracks. Sub-20 lm silver tracks were successfully fabricated with resistivity about three times than bulk silver on flexible substrates, which indicates the potential applications of electrohydrodynamic printing in flexible electronics and medical applications, such as lab-on-chip systems.

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“…In this work, authors strive to present an image for behaviour of produced droplets in pulsating cone jet mode. Droplet emerging velocity which is studied in the third part of results section is an important criterion for describing the behaviour of droplets when colliding to a solid surface and this also has wide range of applications including printing [17,20].…”

Section: Introductionmentioning

confidence: 99%

Electrospray characteristics of aqueous KCl solutions with various electrical conductivities

Faraji¹,

Sadri²,

Hokmabad³

et al. 2018

Preprint

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Some of the authors of this publication are also working on these related projects: Enhancement of transport phenomena View projectDeveloping novel SCR catalysts for utilization in the reduction of the emissions such as mercury from coal-fired power plants. View Abstract In the present experimental study, the effects of electrical conductivity on electrospraying procedure are investigated. A metallic nozzle with 600 m ID as high voltage electrode and a stainless steel ring as a ground electrode were employed. Experiments were carried out in still room temperature. Four different aqueous KCl solutions were sprayed in various high voltages and flow rates. Results confirm that spraying modes changes with conductivity variation. For forming a cone shape, emerging from the nozzle, required applied electric field decreases with conductivity increasing. Results also revealed that conductivity of dispersed solution acts a main role on forming and elongation of the cones in electrospraying procedure. The size and velocity of emanated droplets are also investigated in order to gaining some insight to the electrospraying phenomenon. IntroductionElectrospraying of liquids is a well-established process for producing submicron particles. This spraying method (also known as electro hydrodynamic atomization) is a process in which high electric field is employed to disperse a liquid. High voltage is applied to a liquid supplied through an emitter (usually a metallic capillary). In electrospraying, the shear stress caused by the electric force applied to the surface of liquid, elongates the liquid meniscus formed at the tip of a capillary, to the form of a cone and/or a jet which then deforms and disrupts into droplets due to interplay of electrical and mechanical forces. In this method no additional purely mechanical energy is applied to spray the liquid. Electrohydrodynamic spraying (EHD spraying) has wide range of applications including fine resolution electrohydrodynamic printing [20,3], biomedical application especially drug delivery system [29,23], powder production [9, 11] and producing stable emulsions [13,16,21].Early works on the electrified surfaces has been done by Zeleny in 1917[24]. In 1969, Taylor conducted some experiments in electrified jets [22]. Cloupeau and Prunet-Foch introduced cone jet as one the modes which expects to have monodisperse produced droplets in 1989 [5]. Fernandez de la Mora and his coworkers investigated the droplets diameter and the current emitted from electrosprays in the well-known cone jet mode [8]. They also studied the effect of physical parameters like electrical conductivity, viscosity, liquid density and the feed rate on the electrospraying in cone jet mode [12]. Experimental observation of the dielectric constant effect on the cone jet mode spraying has also been investigated by D. R. Chen et al [4]. They proposed some scaling laws between produced droplets and dielectric constants.For other values of electric field and feed rates, some other regimes, different from cone jet mode...

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Structuring of micro line conductor using electro-hydrodynamic printing of a silver nanoparticle suspension

Cited by 46 publications

References 12 publications

Control of droplet formation for low viscosity fluid by double waveforms applied to a piezoelectric inkjet nozzle

Control of droplet formation for low viscosity fluid by double waveforms applied to a piezoelectric inkjet nozzle

Direct Printing and Electrical Characterization of Conductive Micro-Silver Tracks by Alternating Current-Pulse Modulated Electrohydrodynamic Jet Printing

Electrospray characteristics of aqueous KCl solutions with various electrical conductivities

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