Recent Advances in 3D Printed Electronics

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D1: Semiconductor Devices".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 950

Special Issue Editor


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Guest Editor
Clean Energy Transition Group, Korea Institute of Industrial Technology (KITECH), Jeju 63243, Republic of Korea
Interests: 3D printing; energy storage devices; nanomembranes

Special Issue Information

Dear Colleagues,

Three-dimensional (3D) printing has revolutionized manufacturing across various industries thanks to its unparalleled design freedom and customization capabilities. One of the most promising applications of 3D printing technology is in the field of electronics. Overall, 3D printing enables electronic fabrication with unconventional geometries and form factors, catering to specific application requirements. The versatility of 3D printed electronics transcends traditional manufacturing constraints, fostering innovation in diverse fields, from wearable sensors, displays, and IoT devices to biomedical implants. Despite these advancements, challenges such as material compatibility, resolution limitations, and process reliability still need to be overcome before widespread adoption can occur.

This Special Issue explores the recent advancements, challenges, and prospects of 3D printed electronics. We solicit papers focusing on enhancing material (ink) properties, refining printing techniques, and developing novel design methodologies for 3D printed electronics. Advances in multi-material printing, in situ monitoring, and post processing techniques hold promise for overcoming current limitations and expanding the application scope of 3D printed electronics.

Dr. Sung Hyun Park
Guest Editor

Manuscript Submission Information

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Keywords

  • 3D printing system
  • functional material ink
  • multi-material 3D printing
  • electronics on freeform surfaces
  • 3D printed circuit
  • 3D printed sensor
  • 3D printed optoelectronic device

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Published Papers (1 paper)

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Research

11 pages, 4305 KiB  
Article
3D-Printed Multi-Axis Alignment Airgap Dielectric Layer for Flexible Capacitive Pressure Sensor
by Jeong-Beom Ko, Soo-Wan Kim, Hyeon-Beom Kim, Hyeon-Yun Jeong, Su-Yeong Moon and Young-Jin Yang
Micromachines 2024, 15(11), 1347; https://doi.org/10.3390/mi15111347 - 31 Oct 2024
Viewed by 632
Abstract
Flexible pressure sensors are increasingly recognized for their potential use in wearable electronic devices, attributed to their sensitivity and broad pressure response range. Introducing surface microstructures can notably enhance sensitivity; however, the pressure response range remains constrained by the limited volume of the [...] Read more.
Flexible pressure sensors are increasingly recognized for their potential use in wearable electronic devices, attributed to their sensitivity and broad pressure response range. Introducing surface microstructures can notably enhance sensitivity; however, the pressure response range remains constrained by the limited volume of the compressible structure. To overcome this limitation, this study implements an aligned airgap structure fabricated using 3D printing technology. This structure, designed with a precisely aligned triaxial airgap configuration, offers high deformability under pressure, substantially broadening the pressure response range and improving sensitivity. This study analyzes the key structural parameters—the number of axes and pore size—that influence the compressibility and stability of the dielectric material. The results indicate that the capacitive pressure sensor with an aligned airgap structure, manufactured via 3D printing, exhibits a wide operating pressure range (50 Pa to 500 kPa), rapid response time (100 ms), wide limit of detection (50 Pa), and approximately 21 times enhancement in sensitivity (~0.019 kPa−1 within 100 kPa) compared with conventional bulk structures. Furthermore, foot pressure monitoring trials for wearable sensor applications demonstrated exceptional performance, indicating the sensor’s suitability as a wearable device for detecting plantar pressure. These findings advocate for the potential of 3D printing technology to supplant traditional sensor manufacturing processes. Full article
(This article belongs to the Special Issue Recent Advances in 3D Printed Electronics)
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