printing – TechConnect Briefs

Exploring Process-Properties Relationships of 3D-Printed PLA: Towards Process- Informed Simulation and Design

Grant A., Ellis B.D., Rais-Rohani M., Hajiha R., University of Maine, US

The simulation of additively manufactured (AM) Polylactic Acid (PLA) tensile specimen is discussed. The procedure of evolution and use of a material definition for finite element simulation (FEA) of Polylactic Acid (PLA) printing is discussed, [...]

Formation and Modeling of Droplet Ejection for Electrohydrodynamic Inkjet Printing

Choi J., Lee S., Son S.U., Sungkyunkwan University, KR

EHD(Electrohydrodynamic) inkjet printing based on electrospray and EHD discharging for tiny droplet/jet is known to be able to generate higher resolution and higher aspect ratio of patterns than the conventional inkjet printing(Lee, 2014). EHD inkjet [...]

Learning MEMS Design, Simulation and Fabrication Through 3-D Printing

Dahle R., Rasel R., SUNY New Paltz, US

This paper presents a cost-effective learning tool for modeling and simulating the microfabrication process and design aspects of MEMS devices using three-dimensional (3-D) printing. This approach was developed to provide engineering educators a more affordable [...]

Production technologies for large area flexible electronics

Kolbusch T., Crone K., Coatema Coating Machinery GmbH, DE

There is a wide variety of printed large area flexible electronic devices and at the same time a number of different visions and estimates for this new emerging industry and market. But as every new [...]

Repeated Duplication in EHD Line Patterning on a Non-Conductive Substrate Based on Controlling the Polarity of Applied Voltages

Son S., Lee S., Choi J., Sungkyunkwan University, KR

This paper addresses the EHD printing of a high aspect ratio of metal lines as a means of forming a high conductivity of metal lines. As stated earlier, EHD printing is advantageous over conventional inkjet [...]

Screen Printed Aluminum Cathode for Flexible Devices

Fei F., Su W.M., Cui Z., Suzhou Insititute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, CN

A novel method has been studied for fabricating printed low-work-function aluminum (Al) films. It was used an Al precursor ink, OAlH3 (C2H5)2, which can easily decomposed into Al and H2 at normal pressure and low [...]

FineMetalLine Patterning on Hydrophilic Non-Conductive SubstratesBased on EHD Printing withLaser Sintering

Son S., Lee S., Kim Y.J., An K., Choi J., Sungkyunkwan University, KR

In this paper, we report the successful EHD printing and laser sintering of a 5 um width of metal line patterns, with the line thickness of over 340 nm, on a hydrophilic non-conductive glass substrate [...]

High Aspect Ratio EHD Printing with High Viscosity Ink Ejection

Choi J., Lee S., Kim Y.J., Son S.U., An K.C., Sungkyunkwan University, KR

EHD (Electro-hydro-dynamics) printing technology, one of the printing technologies based on EHD discharging theory, can be patterning of high resolution and high aspect ratio compared to conventional inkjet printing systems. We have been investigating to [...]

Flexible Graphene Transistors via Printing Transfer

Chang T.-C., Suh H.-S., Mikael S., Seo J.-H., Nealey P.F., Ma Z., University of Wisconsin-Madison, US

Graphene is an atomic layer material with the characteristics of high mobility, high mechanical strength, transparency and low injection energy barrier with different work function metals. Good transparent electrodes and flexible graphene-based large scale touch [...]

Photonic Sintering of Silver for Roll-to Roll-Printed Electronics

Ahmed S., Xenon Corporation, US

The use of high energy Pulsed Light is presented as a means of sintering printed nano- particle inks to form conductive traces on flexible substrates. These novel metal nanoparticle based inks are ideally suited for [...]