An Investigation into Printing Processes and Feasibility Study for RFID Tag Antennas

2013 ◽  
Vol 315 ◽  
pp. 468-471 ◽  
Author(s):  
M.I. Maksud ◽  
Mohd Sallehuddin Yusof ◽  
M. Mahadi Abdul Jamil
Keyword(s):  
Feasibility Study ◽  
Screen Printing ◽  
Rfid Tag ◽  
Ink Jet ◽  
Jet Printing ◽  
Current Sample ◽  
Printing Processes ◽  
Rfid Antennas ◽  
A Current ◽  
Read Range

This paper will explain a study of several printing process (screen printing, flexography, gravure and ink jet printing) for RFID antennas transponder. The potential of each process will also be investigated. A current sample of RFID is selected, and the antenna processes have been identified, and the comparison of antenna read range will be exhibited.

Improving Performance of Laser-Printed Conductive Silver Lines

2012 ◽  
Vol 2012 (CICMT) ◽  
pp. 000377-000384
Author(s):  
Dustin Büttner ◽  
Klaus Krüger
Keyword(s):  
Thick Film ◽  
Screen Printing ◽  
Printed Electronics ◽  
Production Method ◽  
Silver Particles ◽  
Ceramic Substrates ◽  
High Speeds ◽  
Conductive Line ◽  
Ink Jet ◽  
Jet Printing

Within the last decade, large efforts were made to implement digital printing as a production method for printed electronics. Especially in production of thick-film electronics, innovation is pushed forward to overcome the lacks of established screen-printing regarding flexibility and tooling. Besides the numerous approaches in using ink-jet printing for printed electronics, researchers at Helmut Schmidt University already showed huge progress in applying electrophotography (“laser printing”) as a method to print conductive silver lines in order to form a conductive layout for thick-film circuits. Electrophotography is a solvent-free method, able to directly print silver toner onto ceramic substrates, forming a conductive line after firing. Benefits are high speeds and flexibility and a huge potential regarding precision. Now, after the feasibility of the method was proven and even functional conductive layouts like RFID coils were printed, the next steps have to be taken towards developing electrophotography to an applicable method in a thick-film production process. Thus, this paper describes the efforts in improving the method's performance. Different kinds of silver particles are tested towards their possibility of forming a silver toner. The resulting silver lines are examined regarding conductivity and printing precision. Also, surface treatment of substrates is considered as a method to reduce the number of required print cycles. Corresponding tests are performed. Furthermore, different firing profiles are tested towards their influence onto the resulting silver lines. Combining the results of these examinations, the performance of conductive silver lines could be improved significantly.

Ink-jet printed ring resonator with integrated Microfluidic components

Circuit World ◽  
2020 ◽  
Vol 46 (4) ◽  
pp. 301-306 ◽  
Author(s):  
Laura Jasińska ◽  
Krzysztof Szostak ◽  
Milena Kiliszkiewicz ◽  
Piotr Słobodzian ◽  
Karol Malecha
Keyword(s):  
Screen Printing ◽  
Ring Resonator ◽  
Microfluidic Channels ◽  
Ink Jet Printing ◽  
Content Type ◽  
Sensor Applications ◽  
Ink Jet ◽  
Jet Printing ◽  
Microstrip Ring ◽  
Microstrip Ring Resonator

Purpose The main purpose of this study is to test the performance of the ink-jet printed microwave resonant circuits on Low temperature co-fired ceramics (LTCC) substrates combined with microfluidic channels for sensor applications. Normally, conductive patterns are deposited on an LTCC substrate by means of the screen-printing technique, but in this paper applicability of ink-jet printing in connection with LTCC materials is demonstrated. Design/methodology/approach A simple microfluidic LTCC sensor based on the microstrip ring resonator was designed. It was assumed the micro-channel, located under the ring, was filled with a mixture of DI water and ethanol, and the operating frequency of the resonator was tuned to 2.4 GHz. The substrate was fabricated by standard LTCC process, and the pattern of the microstrip ring resonator was deposited over the substrate by means of an ink-jet printer. Performance of the sensor was assessed with the use of various volumetric concentrations of DI water and ethanol. Actual changes in concentration were detected by means of microwave measurements. Findings It can be concluded that ink-jet printing is a feasible technique for fast fabrication of micro-strip circuits on LTCC substrates, including microfluidic components. Further research needs to be conducted to improve the reliability, accuracy and performance of this technique. Originality/value The literature shows the use of ink-jet printing for producing various conductive patterns in different applications. However, the idea to replace the screen-printing with the ink-jet printing on LTCC substrates in connection with microwave-microfluidic applications is not widely studied. Some questions concerning accuracy and reliability of this technique are still open.

scholarly journals Opportunities and Challenges in Paper Printed RFID

2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Shalini Jain ◽  
Abhinav Palia
Keyword(s):  
Data Fusion ◽  
Rfid Tags ◽  
Full Potential ◽  
Ink Jet ◽  
Monitoring Applications ◽  
Printing Technique ◽  
Bio Monitoring ◽  
Jet Printing ◽  
Installation Cost ◽  
Read Range

RFID technique has gathered interest in many areas. But due to high installation cost and comparatively low read range, it has not reached its full potential. In this paper, how ‘conductive’ ink-jet printing technique, as an effective approach for the printing of RFID tags on paper has been studied. Various results characterize paper as a good substrate for the fabrication of sensor modules. Also, the use of implantable RFID tags for bio-monitoring applications is investigated that may open interesting opportunities in telemedicine. Although the technique is exciting enough to be adopted and can revolutionize data fusion but still there are certain unresolved issues that can restrict its use for the development of a ‘ubiquitous’ network for device and body monitoring applications.

Improvement of Performance of Electroluminescent Panel by Reducing the Thickness of Dielectric Layer

2019 ◽  
Vol 955 ◽  
pp. 20-24
Author(s):  
Michal Hrabal ◽  
Petr Dzik ◽  
Lukáš Omasta ◽  
Martin Vala ◽  
Michal Kalina ◽  
...  
Keyword(s):  
Dielectric Layer ◽  
Screen Printing ◽  
Low Cost ◽  
Dielectric Films ◽  
Driving Voltage ◽  
Large Area ◽  
Ink Jet ◽  
Printing Technique ◽  
Jet Printing ◽  
Material Printing

Alternating-current powder-based electroluminescence is currently the only technique for quick and easy preparation of large area, low cost electroluminescent panels by the means of material printing. Manufacturing of the panels is currently done exclusively by screen printing which is associated with deposition of much thicker layers than typical for other methods of material printing. Typical thickness of layers is in the order of tens of microns and more. The overall thickness of films forming the panel is however a serious shortcoming of the devices because the driving voltage for generation of light needs to be high and the thickness of layers render the panel non transparent from the side of the dielectric layer. One layer of dielectric films screen printed from the commercially available formulation is approximately 10 μm thick and cannot be effectively reduced anymore and thus another printing technique needs to be exploited. The goal of this work is to define and optimize a composition of a novel ink jet printing formulation of dielectric film and verification of parameters of the final layers for use in this type of technology. The major benefits of ink jet printed dielectric layer are the possible preparation of a panel emitting light from both sides with reduced driving voltage needed for its operation.

Formulation of Eco-Friendly Inks for Ink-Jet Printing of Polyester and Cotton Blended Fabric

2015 ◽  
Vol 671 ◽  
pp. 109-114 ◽  
Author(s):  
Hafeezullah Memon ◽  
Nazakat Ali Khoso ◽  
Samiullah Memon ◽  
Ning Ning Wang ◽  
Cheng Yan Zhu
Keyword(s):  
Surface Tension ◽  
Screen Printing ◽  
Disperse Dyes ◽  
Color Fastness ◽  
Image Sharpness ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Personal Experiences ◽  
Water Based ◽  
Jet Printing

The aim of this research is to discover such a strategy so that Ink-jet Printing of polyester and cotton blended fabric. This research focuses to develop inks by the combination of Reactive and disperse dyes and by using eco-friendly co-solvents. This paper covers a brief introduction of Ink jet printing technologies and types of inks. A summarized study of the evaluation amid ink jet printing as well as rotary screen printing is also given. In addition to, requirements and composition of water-based ink-jet inks focusing on methodology is given. Furthermore, shelf lives of inks, image sharpness, surface tension, color fastness to rubbing, analysis of head with some personal experiences are also discussed.

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