Next Article in Journal
Improved Enumeration of Weakly Fluorescent CD4+ T-lymphocytes by Confining Cells in a Spinning Sample Cartridge with a Helical Minichannel
Next Article in Special Issue
Recent Developments in Ozone Sensor Technology for Medical Applications
Previous Article in Journal
Wetting Properties of Transparent Anatase/Rutile Mixed Phase Glancing Angle Magnetron Sputtered Nano-TiO2 Films
Previous Article in Special Issue
Investigation on Threshold Voltage Adjustment of Threshold Switching Devices with HfO2/Al2O3 Superlattice on Transparent ITO/Glass Substrate
Open AccessArticle

Highly Integrated Elastic Island-Structured Printed Circuit Board with Controlled Young’s Modulus for Stretchable Electronics

1
Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeongro, Daejeon 305-600, Korea
2
Department of Materials Science & Engineering, Yonsei University, Yonsei-ro Seodaemun-gu, Seoul 03722, Korea
3
Department of Chemical Convergence Materials, Korea University of Science and Technology (UST), 217 Gajeongro, Yuseong-gu, Daejeon 305-350, Korea
*
Authors to whom correspondence should be addressed.
Micromachines 2020, 11(6), 617; https://doi.org/10.3390/mi11060617
Received: 4 May 2020 / Revised: 22 June 2020 / Accepted: 24 June 2020 / Published: 25 June 2020
(This article belongs to the Special Issue Deformable Bioelectronics Based on Functional Micro/nanomaterials)
A stretchable printed circuit board (PCB), which is an essential component of next-generation electronic devices, should be highly stretchable even at high levels of integration, as well as durable under repetitive stretching and patternable. Herein, an island-structured stretchable PCB composed of materials with controlled Young’s modulus and viscosity by adding a reinforcing agent or controlling the degree of crosslinking is reported. Each material was fabricated with the most effective structures through a 3D printer. The PCB was able to stretch 71.3% even when highly integrated and was patterned so that various components could be mounted. When fully integrated, the stress applied to the mounted components was reduced by 99.9% even when stretched by over 70%. Consequently, a 4 × 4 array of capacitance sensors in a stretchable keypad demonstration using our PCB was shown to work, even at 50% stretching of the PCB. View Full-Text
Keywords: stretchable printed circuit board (PCB); substrate; island structure; 3D nozzle printing; degree of integration stretchable printed circuit board (PCB); substrate; island structure; 3D nozzle printing; degree of integration
Show Figures

Figure 1

MDPI and ACS Style

Cho, D.; Kim, J.; Jeong, P.; Shim, W.; Lee, S.Y.; Choi, Y.; Jung, S. Highly Integrated Elastic Island-Structured Printed Circuit Board with Controlled Young’s Modulus for Stretchable Electronics. Micromachines 2020, 11, 617.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop