Tape Transfer Printing of a Liquid Metal Alloy for Stretchable RF Electronics
AbstractIn order to make conductors with large cross sections for low impedance radio frequency (RF) electronics, while still retaining high stretchability, liquid-alloy-based microfluidic stretchable electronics offers stretchable electronic systems the unique opportunity to combine various sensors on our bodies or organs with high-quality wireless communication with the external world (devices/systems), without sacrificing enhanced user comfort. This microfluidic approach, based on printed circuit board technology, allows large area processing of large cross section conductors and robust contacts, which can handle a lot of stretching between the embedded rigid active components and the surrounding system. Although it provides such benefits, further development is needed to realize its potential as a high throughput, cost-effective process technology. In this paper, tape transfer printing is proposed to supply a rapid prototyping batch process at low cost, albeit at a low resolution of 150 μm. In particular, isolated patterns can be obtained in a simple one-step process. Finally, a stretchable radio frequency identification (RFID) tag is demonstrated. The measured results show the robustness of the hybrid integrated system when the tag is stretched at 50% for 3000 cycles. View Full-Text
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Jeong, S.H.; Hjort, K.; Wu, Z. Tape Transfer Printing of a Liquid Metal Alloy for Stretchable RF Electronics. Sensors 2014, 14, 16311-16321.
Jeong SH, Hjort K, Wu Z. Tape Transfer Printing of a Liquid Metal Alloy for Stretchable RF Electronics. Sensors. 2014; 14(9):16311-16321.Chicago/Turabian Style
Jeong, Seung H.; Hjort, Klas; Wu, Zhigang. 2014. "Tape Transfer Printing of a Liquid Metal Alloy for Stretchable RF Electronics." Sensors 14, no. 9: 16311-16321.