Oven Sintering Process Optimization for Inkjet-Printed Ag Nanoparticle Ink

Halonen, Eerik; Viiru, T.; Östman, Kauko; Cabezas, Ana López; Mäntysalo, Matti

doi:10.1109/tcpmt.2012.2226458

Cited by 64 publications

(36 citation statements)

References 23 publications

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“…Temperatures of 200 °C or even more are often required in order to completely burn off all organic residues and thus allow small metal particles to coalesce and form a macroscopic network within which electrons can percolate over long distances. It is worth mentioning that the electrical resistivity of the sintered layer increases if sintering temperature and duration decrease; it is therefore possible to perform thermal sintering at lower temperatures if higher resistivity is not detrimental to the target application …”

Section: Functional Inks For Inkjet‐printingmentioning

confidence: 99%

Inkjet‐Printing: A New Fabrication Technology for Organic Transistors

Mattana

Loi

Woytasik

et al. 2017

Adv Materials Technologies

123

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Inkjet-printing is one of the most important fabrication techniques in the field of printed electronics. Its main advantages include the possibility of fabricating, at ambient conditions and by employing a digital layout, a large variety of electronic devices on different types of substrates, including flexible plastic ones. In this paper, the utilization of inkjet-printing as an important fabrication tool for the realization of organic transistors and circuits/sensing systems based on such type of transistors is reviewed. The most important aspects of the fabrication process, including ink formulation, printing deposition, and postprinting treatment, are described in detail. The most significant examples of inkjet-printed organic transistors of different types (field-effect, electrolytegated, and electrochemical) are presented and finally an overview of their applications as building blocks of more complex electronic circuits and systems for the detection and quantification of specific measurands is provided.

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Section: Functional Inks For Inkjet‐printingmentioning

confidence: 99%

Inkjet‐Printing: A New Fabrication Technology for Organic Transistors

Mattana

Loi

Woytasik

et al. 2017

Adv Materials Technologies

123

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“…Its high thermal stability ensures that the layer withstands the high‐sintering temperatures commonly used for silver sintering. Higher sintering temperatures lead to faster accomplishment of the desired conductivity by a faster sintering process …”

Section: Inkjet‐printed Test Samplesmentioning

confidence: 99%

Photoinitiator‐free photopolymerization of acrylate‐bismaleimide mixtures and their application for inkjet printing

Wagner

Mühlberger

Paulik

2019

J of Applied Polymer Sci

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There is growing interest in using photoinitiator-free systems in coating applications such as inkjet-printing, because residual photoinitiator can alter the properties of the resulting polymer. Bismaleimides (BMI) offer the opportunity to polymerize acrylates without the addition of photoinitiators, as this class of molecules can serve both as polymerizable monomer and as photoinitiator together with electron donor systems, like vinyl ether monomers or acrylates. The UV-induced copolymerization of a low-molecular-weight BMI with various acrylate monomers and oligomers without any photoinitiator was characterized. The BMI-acrylate systems show comparable polymerization speeds to widely used acrylic systems with photoinitiator. Superior thermal stability as well as thermomechanical properties are achieved by enhancing acrylics with BMI. Such photoinitiator-free systems lend themselves to be used for low-migration coatings as well as for high-temperature applications. Here, a characterization of selected BMI-acrylate mixtures regarding their photocuring kinetics and their application as inks for inkjet printing is shown.BMIs contain two reactive double bonds and can serve both as polymerizable monomer and as photoinitiator for other monomers, such as acrylates or vinyl ethers. As a result of UV-irradiation, BMIs Additional Supporting Information may be found in the online version of this article.

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“…After filling the vias, the sample is placed in convection oven heated to 220 °C for 1 h as recommended by the ink manufacturer [13], and taking into account our previous study on oven sintering process optimization for inkjet-printed Ag nanoparticle ink [15]. In the sintering process, first the solvent ( figure 2(c)) and dispersant material around the nanoparticles evaporate and then, because of partial melting and welding of nanoparticles, a uniform conductive layer will be formed [15].…”

Section: Fabrication Processmentioning

confidence: 99%

“…In the sintering process, first the solvent ( figure 2(c)) and dispersant material around the nanoparticles evaporate and then, because of partial melting and welding of nanoparticles, a uniform conductive layer will be formed [15].…”

Section: Fabrication Processmentioning

confidence: 99%

Fabrication and electrical characterization of partially metallized vias fabricated by inkjet

Khorramdel

Mäntysalo

2016

J. Micromech. Microeng.

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Through silicon vias (TSVs), acting as vertical interconnections, play an important role in micro-electro-mechanical systems (MEMS) 3D wafer level packaging. Today, taking advantage of nanoparticle inks, inkjet technologies as local filling methods could be used to plate the inside the vias with a conductive material, rather than using a current method, such as chemical vapor deposition or electrolytic growth. This could decrease the processing time, cost and waste material produced. In this work, we have fabricated and demonstrated electrical characterization of TSVs with a top diameter of 85 μm, and partially metallized on their inside walls using silver nanoparticle ink and drop-on-demand inkjet printing. Electrical measurement showed that the resistance of a single via with a void free coverage from top to bottom could be less than 4 Ω, which is still acceptable for MEMS applications.

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Oven Sintering Process Optimization for Inkjet-Printed Ag Nanoparticle Ink

Cited by 64 publications

References 23 publications

Inkjet‐Printing: A New Fabrication Technology for Organic Transistors

Inkjet‐Printing: A New Fabrication Technology for Organic Transistors

Photoinitiator‐free photopolymerization of acrylate‐bismaleimide mixtures and their application for inkjet printing

Fabrication and electrical characterization of partially metallized vias fabricated by inkjet

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