scholarly journals Printing Technologies on Flexible Substrates for Printed Electronics

2018 ◽  
Author(s):  
Sílvia Manuela Ferreira Cruz ◽  
Luís A. Rocha ◽  
Júlio C. Viana
Keyword(s):  
Printed Electronics ◽  
Flexible Substrates

scholarly journals High Performance Printed Electronics on Large Area Flexible Substrates

2020 ◽  
Author(s):  
Mahesh Soni ◽  
Dhayalan Shakthivel ◽  
Adamos Christou ◽  
Ayoub Zumeit ◽  
Nivasan Yogeswaran ◽  
...  
Keyword(s):  
High Performance ◽  
Printed Electronics ◽  
Flexible Substrates ◽  
Large Area

An Investigation onto Polydimethylsiloxane (PDMS) Printing Plate of Multiple Functional Solid Line by Flexographic

2013 ◽  
Vol 844 ◽  
pp. 158-161 ◽  
Author(s):  
M.I. Maksud ◽  
Mohd Sallehuddin Yusof ◽  
M. Mahadi Abdul Jamil
Keyword(s):  
Laser Ablation ◽  
Line Width ◽  
High Speed ◽  
Printed Electronics ◽  
Low Cost ◽  
Flexible Substrates ◽  
Large Area ◽  
Printing Plate ◽  
Roll To Roll ◽  
Printing Processes

Recently low cost production is vital to produce printed electronics by roll to roll manufacturing printing process like a flexographic. Flexographic has a high speed technique which commonly used for printing onto large area flexible substrates. However, the minimum feature sizes achieved with roll to roll printing processes, such as flexographic is in the range of fifty microns. The main contribution of this limitation is photopolymer flexographic plate unable to be produced finer micron range due to film that made by Laser Ablation Mask (LAMs) technology not sufficiently robust and consequently at micron ranges line will not be formed on the printing plate. Hence, polydimethylsiloxane (PDMS) is used instead of photopolymer. Printing trial had been conducted and multiple solid lines successfully printed for below fifty microns line width with no interference between two adjacent lines of the printed images.

scholarly journals Combined Chemical and Thermal Sintering for High Conductivity Inkjet-printed Silver Nanoink on Flexible Substrates

2019 ◽  
Vol 33 (3) ◽  
pp. 377-384 ◽  
Author(s):  
Irena Ivanišević ◽  
Petar Kassal ◽  
Andrea Milinković ◽  
Anamarija Rogina ◽  
Stjepan Milardović
Keyword(s):  
Room Temperature ◽  
Printed Electronics ◽  
Low Cost ◽  
Flexible Substrates ◽  
Capping Agent ◽  
Bulk Silver ◽  
Key Factor ◽  
Silver Electrodes ◽  
Thermal Sintering ◽  
Very High

Electrical conductivity is a key factor in measuring performance of printed electronics,<br /> but the conductivity of inkjet-printed silver nanoinks greatly depends on post-fabrication<br /> sintering. In this work, two different conductive silver nanoinks, in which the silver nanoparticles were stabilized by two different capping agents – Poly(acrylic acid) (PAA) and Poly(methacrylic acid) (PMA) – were synthesized. The inks were inkjet-printed on flexible PET substrates, coated with an additional polycation layer, which facilitated<br /> chemical sintering. The printed features were then exposed to moderately elevated<br /> temperatures to evaluate the effect of combined chemical and thermal sintering. Both<br /> inks produced conductive features at room temperature, and the conductivity increased<br /> with both temperature and duration of sintering. At temperatures above 100 °C, the choice of capping agent had no pronounced effect on conductivity, which approached very high values of 50 % of bulk silver in all cases. The lowest resistivity (2.24 μΩ cm) was obtained after sintering at 120 °C for 180 min. By combining chemical and conventional thermal sintering, we have produced remarkably conductive silver electrodes on flexible substrates, while using low-cost and simple processes.

scholarly journals Fully printed electronics on flexible substrates: High gain amplifiers and DAC

2014 ◽  
Vol 15 (3) ◽  
pp. 701-710 ◽  
Author(s):  
Joseph Chang ◽  
Xi Zhang ◽  
Tong Ge ◽  
Jia Zhou
Keyword(s):  
Printed Electronics ◽  
High Gain ◽  
Flexible Substrates

scholarly journals A preliminary study of printed electronics through flexography impression on flexible substrates

2021 ◽  
Vol 72 (02) ◽  
pp. 133-137
Author(s):  
ANA M. RODES-CARBONELL ◽  
JOSUÉ FERRI ◽  
EDUARDO GARCIA-BREIJO ◽  
EVA BOU-BELDA
Keyword(s):  
Printed Electronics ◽  
Low Cost ◽  
Nonwoven Fabric ◽  
Flexible Substrates ◽  
Continuous Manufacturing ◽  
Colour Fastness ◽  
High Productivity ◽  
Nonwoven Fabrics ◽  
Silver Ink ◽  
Paper Substrates

The work is framed within Printed Electronics, an emerging technology for the manufacture of electronic products. Among the different printing methods, the roll-to-roll flexography technique is used because it allows continuous manufacturing and high productivity at low cost. Apart from the process parameters, the ink and the substrate properties are some of the variables associated with the flexographic printing. Specifically, this study investigates the ink penetration, the print uniformity, the adhesion, the fastness, and the electrical behaviour of the same conductive silver ink printed on different flexible substrates through the flexography process. In addition to polymeric and siliconized paper substrates, which are typical used in printed electronics, two substrates were also chosen for the study: woven and nonwoven fabric. Optical, scanning electronic microscope (SEM), 4-point Kelvin and colour fastness to wash and rubbing analyses have been performed. The results concluded that, regarding the conductivity behaviour, porous substrates like textiles and nonwoven fabrics without pre and post treatments do not present acceptable results, whereas polymers or silicone papers do. Nevertheless, woven and nonwoven fabrics are a suitable early option regarding colour fastness to wash instead of thin polymeric and paper substrates that tear at the wash machine. A solution for an optimal printing on textiles would be the surface substrates pre-treatment by applying different chemical compounds that increase the adhesion of the ink on the fabric

Precision Patterned Thin Films without Photolithography: Additive Manufacturing of Printed Electronics

2013 ◽  
Vol 2013 (1) ◽  
pp. 000927-000931 ◽  
Author(s):  
Scott Lauer ◽  
Whitten Little ◽  
Thomas Ambrose ◽  
Jeff Conrad ◽  
Tim Cowen
Keyword(s):  
Additive Manufacturing ◽  
Printed Electronics ◽  
Preliminary Test ◽  
Flexible Substrates ◽  
Additive Technology ◽  
Space Resolution ◽  
Microelectronic Devices ◽  
Layer Manufacturing ◽  
Manufacturing Techniques ◽  
Line Space

Additive manufacturing is the application of layer manufacturing techniques to fabricate microelectronic products. These techniques differentiate themselves from incumbent technologies in that they only add material to build the device and are an alternative to subtractive technologies such as lithography that globally coat layers and then etch-away unrequired materials. In this paper we discuss an additive technology that performs material evaporation through shadow masks. This process has shown significant potential for the fabrication of chip packaging, microelectronic devices and circuitry; specifically, high density interposers, fine conductor lines and embedded components such as capacitors, resistors, and transistors. The process is compatible with a number of both rigid and flexible substrates and deposition materials. Examples of devices and lines that have been manufactured by this technique are shown and discussed. Preliminary test data shows line / space resolution that has reached 5 / 20 microns and better.

Anion-mediated synthesis of monodisperse silver nanoparticles useful for screen printing of high-conductivity patterns on flexible substrates for printed electronics

RSC Advances ◽  
2015 ◽  
Vol 5 (13) ◽  
pp. 9783-9791 ◽  
Author(s):  
Li Liu ◽  
Xiaoxia Wan ◽  
Lingling Sun ◽  
Shuanglei Yang ◽  
Zhigao Dai ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Screen Printing ◽  
Large Scale ◽  
Printed Electronics ◽  
High Conductivity ◽  
Flexible Substrates ◽  
Reduction Reactions ◽  
Oxidation Reduction

Monodisperse silver nanoparticles (NPs) have been synthesized on a large scale by oxidation–reduction reactions in water and used in the printed electronics.

scholarly journals Combining Vapor Phase Polymerization and Screen Printing for Printed Electronics on Flexible Substrates

2022 ◽  
pp. 2101665
Author(s):  
Robert Brooke ◽  
Kosala Wijeratne ◽  
Kathrin Hübscher ◽  
Dagmawi Belaineh ◽  
Peter Andersson Ersman
Keyword(s):  
Vapor Phase ◽  
Screen Printing ◽  
Printed Electronics ◽  
Flexible Substrates ◽  
Vapor Phase Polymerization
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