Journal ArticleDOI
3D printing electronic components and circuits with conductive thermoplastic filament
TLDR
In this paper, the authors examined the use of dual-material fused filament fabrication for 3D printing electronic components and circuits with conductive thermoplastic filaments, and demonstrated the ability to embed and connect surface mounted components in 3D printed objects with a low-cost ($1000 in parts), open source dualmaterial 3D printer.Abstract:
This work examines the use of dual-material fused filament fabrication for 3D printing electronic components and circuits with conductive thermoplastic filaments. The resistivity of traces printed from conductive thermoplastic filaments made with carbon-black, graphene, and copper as conductive fillers was found to be 12, 0.78, and 0.014 Ω cm, respectively, enabling the creation of resistors with values spanning 3 orders of magnitude. The carbon black and graphene filaments were brittle and fractured easily, but the copper-based filament could be bent at least 500 times with little change in its resistance. Impedance measurements made on the thermoplastic filaments demonstrate that the copper-based filament had an impedance similar to a copper PCB trace at frequencies greater than 1 MHz. Dual material 3D printing was used to fabricate a variety of inductors and capacitors with properties that could be predictably tuned by modifying either the geometry of the components, or the materials used to fabricate the components. These resistors, capacitors, and inductors were combined to create a fully 3D printed high-pass filter with properties comparable to its conventional counterparts. The relatively low impedance of the copper-based filament enabled its use for 3D printing of a receiver coil for wireless power transfer. We also demonstrate the ability to embed and connect surface mounted components in 3D printed objects with a low-cost ($1000 in parts), open source dual-material 3D printer. This work thus demonstrates the potential for FFF 3D printing to create complex, three-dimensional circuits composed of either embedded or fully-printed electronic components.read more
Citations
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Journal ArticleDOI
Polymers for additive manufacturing and 4D-printing: Materials, methodologies, and biomedical applications
TL;DR: In this paper, the basic principles, considering the printing mechanism as well as the advantages and disadvantages, of the most relevant polymer AM technologies are described, and particular features, properties and limitations of currently employed polymer systems in the various AM technology areas are presented and analyzed.
Journal ArticleDOI
A critical review on the fused deposition modeling of thermoplastic polymer composites
TL;DR: In this article, the challenges involved in the preparation of composite feedstock filaments and printing issues during the printing of nano composites, short and continuous fiber composites are discussed, and detailed explanation is given about the analytical and numerical models used for simulating the FDM printing process and for estimating the mechanical properties of the printed parts.
Journal ArticleDOI
3D printed microfluidics and microelectronics
Ryan D. Sochol,Eric Sweet,Casey C. Glick,Sung-Yueh Wu,Chen Yang,Michael A. Restaino,Liwei Lin +6 more
TL;DR: The distinctive benefits and constraints associated with emerging 3D printing technologies with respect to the fabrication of both microfluidic and microelectronic systems are evaluated.
Journal ArticleDOI
Additive manufacturing of polymeric composites from material processing to structural design
TL;DR: In this paper, the authors provide a comprehensive guide to the stakeholders who want to utilize or develop an additive manufacturing process for polymeric composites and provide an outlook on future research opportunities on AM-fabricated composites from design to fabrication.
References
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Journal ArticleDOI
Inkjet Printing of Polymers: State of the Art and Future Developments
TL;DR: Inkjet printing is considered to be a key technology in the field of defined polymer deposition as mentioned in this paper, and a short overview of the available instrumentation is given, including manufacturing of multicolor polymer light-emitting diode displays, polymer electronics, three-dimensional printing, and oral dosage forms for controlled drug release.
Journal ArticleDOI
Omnidirectional Printing of Flexible, Stretchable, and Spanning Silver Microelectrodes
Bok Yeop Ahn,Eric B. Duoss,Michael J. Motala,Xiaoying Guo,Sang Il Park,Yujie Xiong,Jongseung Yoon,Ralph G. Nuzzo,John A. Rogers,Jennifer A. Lewis +9 more
TL;DR: In this article, a patterned silver microelectrodes by omnidirectional printing of concentrated nanoparticle inks in both uniform and high-aspect ratio motifs with minimum widths of approximately 2 micrometers onto semiconductor, plastic, and glass substrates is demonstrated.
Journal ArticleDOI
Printing soft matter in three dimensions
TL;DR: The expanding range of printable materials, coupled with the ability to programmably control their composition and architecture across various length scales, is driving innovation in myriad applications.
Journal ArticleDOI
3D Printing of Free Standing Liquid Metal Microstructures
TL;DR: This paper describes a method to direct-write 3D liquid metal microcomponents at room temperature capable of printing wires, arrays of spheres, arches, and interconnects.