Fabrication of 3D conductive circuits: print quality evaluation of a direct ink writing process

Tricot, F.; Venet, Cécile; Beneventi, Davide; Curtil, Denis; Chaussy, Didier; Vuong, Tan Phu; Broquin, Jean-Emmanuel; Reverdy-Bruas, Nadège

doi:10.1039/c8ra03380c

Cited by 27 publications

(17 citation statements)

References 17 publications

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“…Filling a syringe without air may require additional steps in case the ink is highly viscous, since any bubbles will move rather slow through the viscous liquid [19]. c) Progressive cavity: Progressive cavity extruders use a helically shaped rotor and flexible stator to achieve the fast responding, volumetric, non-pulsating flow, which is required by the 3D printing process [20], [21]. Because all the cavities need to be filled with ink before the extruder can be used, the dead volume of this method is larger than that of the other two methods.…”

Section: A Extrusion Systemsmentioning

confidence: 99%

A Review of Extrusion-Based 3D Printing for the Fabrication of Electro- and Biomechanical Sensors

et al. 2021

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In this review paper, we focus on the 3D printing technologies that consist of the extruding of fluid material in lines to form structures for electro-and biomechanical applications. Our paper reviews various 3D print technologies, materials, sensing technologies and applications of extrusion-based 3D printing. We also discuss how to overcome some of the challenges with 3D printed sensors, such as the anisotropy of the conductors as well as the drift and nonlinearity of the materials.

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Section: A Extrusion Systemsmentioning

confidence: 99%

A Review of Extrusion-Based 3D Printing for the Fabrication of Electro- and Biomechanical Sensors

et al. 2021

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“…[57] 3D printing can overcome the limitations of conventional processing, such as photo-lithography based microfabrication, by eliminating masking and etching steps via employing pure additive operations. Direct printing technology has the versatile capability to print both passive and active devices such as conductive paths, [58] insulators, [59] capacitors, [60] resistors, [61] antennas, [62] etc. This technique involves the extrusion of high viscous liquid materials, which enable them to maintain their shape after deposition, or extrusion-based printing.…”

Section: Extrusion-based 3d Printingmentioning

confidence: 99%

“…The nozzle size, ink feed rate, printing speed, and other parameters are required to be adjusted to obtain an optimal printing quality. [58] Also, carbon black material is utilized as a filler in the shape-recoverable polyurethane polymer for the printing of 3D photo-responsive devices. [70] Silver-based nanomaterials are one of the most extensively employed materials to make conductive composites for printing.…”

Section: Extrusion-based 3d Printingmentioning

confidence: 99%

New Frontiers in 3D Structural Sensing Robots

Kaur

Kim

2021

Advanced Materials

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robots are also capable to form strong emotional bonds with humans such as in robotic pets. [8] For these tasks, the robots are able to detect and realize the human's needs such as health condition and emotional states. Hence, it is essential to design the robots with specific functionalities to be "sensing robots." The sensing robots refer the robot platforms with sensing functionalities to detect environmental stimuli or changes by taking over one or more complex tasks from human. To develop sensing robots that are responsive to the surrounding complex environments, sensors and their supporting circuits should be integrated into the robotic bodies. First, it is important to design sensors that have good sensitivity and reliability to track any changes in the environment and to transfer data to a monitoring unit. [9] Next, the structure of sensors should be embedded in the internal or external space of robots without hindering the motions of the robotic body for data acquisitions. [10] Lastly, to assist the robots to act, a well-responsive, closed-loop system is mandatorily required. [11,12] Based on these, a futuristic robot equipped with sensors will have good performance for monitoring real-time events and will have the advanced diagnostics to provide immediate feedback of the surrounding changes during sensing. [12] In terms of sensor designs, we are still far from developing a sensor that can be used in practical sensing robots. Although earlier research works regarding 2D [13,14] or planar sensors [14,15] with high performance and good flexibilities have been extensively reported for their applications as irregularly shaped body parts such as wearables or e-skin based sensors, [16] these developed sensors are still insufficient for sensing robots due to various challenges including electronic or structural integration, stable positioning of sensors during robot actuation, and more difficult data processing derived from the complex structure for the robot actuation. [17][18][19] Therefore, beyond merely using 2D types of sensors, 3D sensors integrated into 3D objects are naturally suggested as the next-generation sensors and are employed in sensing robots to overcome their geometrical barriers for sensor integrations. [18][19][20] This is because such 3D structural approaches enable to integrate sensing parts, actuators, and their computation as one system into the 3D structures. [18,21] Additionally, one more dimensional design of electrical components allows to add more circuit systems into the limited internal space of Advanced robotics is the result of various contributions from complex fields of science and engineering and has tremendous value in human society. Sensing robots are highly desirable in practical settings such as healthcare and manufacturing sectors through sensing activities from human-robot interaction. However, there are still ongoing research and technical challenges in the development of ideal sensing robot systems. The sensing robot should synergically merge sensors and robotics. Geo...

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“…and S is the drop spreading coefficient on the substrate. Preliminary experimental data show that, despite the high ink viscosity, 7 the equivalent circle diameter, and subsequently the spreading coefficient, can be affected by the number of drops (nd) overlapping during the deposition process which can be calculated as:…”

Section: Printing Velocity and Line Geometry/resistancementioning

confidence: 99%

“…6 Despite their high performance, most of the time those contactless deposition processes are implemented on 3-or 3+1-axis Cartesian robots, which limits their use for 2D or 2.5D substrates. [7][8][9] Over the years, poly articulated 6-axis robots have been intensively used in the automotive and pharmaceutical industries for localised fluid dispensing. Nevertheless, their use in high-precision freeform printing is still marginal.…”

Section: Introductionmentioning

confidence: 99%

Use of a 6-axis robot and ink piezo-jetting to print conductive paths on 3D objects. Printed circuit geometry, and conductivity predictive model

Furia

Tricot

Chaussy

et al. 2021

CIRP Journal of Manufacturing Science and Technology

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Fabrication of 3D conductive circuits: print quality evaluation of a direct ink writing process

Abstract: Evaluation of the printing quality of a direct writing process developed for the fabrication of 3D conductive circuits.

Cited by 27 publications

References 17 publications

A Review of Extrusion-Based 3D Printing for the Fabrication of Electro- and Biomechanical Sensors

A Review of Extrusion-Based 3D Printing for the Fabrication of Electro- and Biomechanical Sensors

New Frontiers in 3D Structural Sensing Robots

Use of a 6-axis robot and ink piezo-jetting to print conductive paths on 3D objects. Printed circuit geometry, and conductivity predictive model

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