High performance 3D printed electronics using electroless plated copper

Jian, Jin; Kim, Taeil; Park, Jae Sung; Wang, Jiacheng; Kim, Woo Soo

doi:10.1063/1.4979173

Cited by 32 publications

(21 citation statements)

References 14 publications

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“…Reproduced under the terms of the CC-BY 4.0 license. [78] Copyright 2017, The Authors, published by AIP Publishing. f) 3D printed metal electrodes coated with Au and Bi for heavy metal detection (scale bar: 1 cm).…”

Section: Extrusion-based 3d Printingmentioning

confidence: 99%

“…Various studies have been extensively reported to fabricate Cu conducting paths using a chemical deposition. [76][77][78] Cu thin films have been patterned on substrates by electroless deposition (ELD) technique at low temperature. ELD, as one of the chemical deposition methods, is an alternative approach to obtain the structures coated with conducting materials and offers a low temperature and costeffective method for metal deposition on insulating substrates.…”

Section: Chemical Deposition For 3d Structural Devicesmentioning

confidence: 99%

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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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Section: Extrusion-based 3d Printingmentioning

confidence: 99%

Section: Chemical Deposition For 3d Structural Devicesmentioning

confidence: 99%

New Frontiers in 3D Structural Sensing Robots

Kaur

Kim

2021

Advanced Materials

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“…Alternative strategies for the fabrication of traces or interconnects on nonplanar surfaces based on direct write printing of metallic inks or composites, inkjet printing, metalizing objects fabricated via fused deposition modeling, hydroprinting of silver nanoparticles, pop‐up assemblies created using prestrained elastomeric substrates, and networks of liquid metal wires, and patterning via controlled flocculation in microchannels, have been reported. These approaches, however, require specialized instruments (e.g., 3D printers with multiaxial movement) and they are limited to certain types of target materials.…”

Section: Introductionmentioning

confidence: 99%

Soft Microreactors for the Deposition of Conductive Metallic Traces on Planar, Embossed, and Curved Surfaces

Konda

Rau

Stoller

et al. 2018

Adv Funct Materials

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Advanced manufacturing strategies have enabled large-scale, economical, and efficient production of electronic components that are an integral part of various consumer products ranging from simple toys to intricate computing systems; however, the circuitry for these components is (by and large) produced via top-down lithography and is thus limited to planar surfaces. The present work demonstrates the use of reconfigurable soft microreactors for the patterned deposition of conductive copper traces on flat and embossed two-dimensional (2D) substrates as well as nonplanar substrates made from different commodity plastics. Using localized, flow-assisted, low-temperature, electroless copper deposition, conductive metallic traces are fabricated, which, when combined with various off-the-shelf electronic components, enabled the production of simple circuits and antennas with unique form factors. This solution-phase approach to the patterned deposition of functional inorganic materials selectively on different polymeric components will provide relatively simple, inexpensive processing opportunities for the fabrication of 2D/nonplanar devices when compared to complicated manufacturing methods such as laser-directed structuring. Further, this approach to the patterned metallization of different commodity plastics offers unique design opportunities applicable to the fabrication of planar and nonplanar electronic and interconnect devices, and other free-form electronics with less structural "bloat" and weight (by directly coating support elements with circuitry).

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“…Electroless plating is a popular and mature technique to create metallic coating on plastic objects, including 3D printed plastic parts. 26,27 However, although electroless plating is a commonly-used approach to achieve conformal metal coating on plastic surfaces, challenge remains to achieve selective coating on specic locations. Trace metal particle residues can still form on substrate and results in shorted electrical circuits or the low-performance of 3D metal structures.…”

Section: Introductionmentioning

confidence: 99%