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Mechanically Guided Post-Assembly of 3D Electronic Systems
선승원,고정흔,성한상,오영택,황준표,박신,김봉훈 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2
This paper describes assembly processes for transforming conventional, planar devices based on FPCB platforms into those with 3D architectures in a manner that is fully compatible with off-the-shelf packaged or unpackaged component parts. The strategy involves mechanically guided geometry transformation by out-of-plane buckling motions that follow from controlled forces imposed at precise locations across the FPCB substrate by a prestretched elastomer platform. The mechanical tunability of the resulting 3D FPCB platforms allows these electronic systems to operate in an adaptable manner, as demonstrated in simple examples of an optoelectronic sensor that offers adjustable detecting angle/area and a near-field communication antenna that can be tuned to accommodate changes in the electromagnetic properties of its surroundings. These approaches to 3D FPCB technologies create immediate opportunities for designs in multifunctional systems that leverage state-of-the-art components.
Binodal, Wireless Epidermal Electronic Systems with-in Sensor Analytics for Neonatal Intensive Care
박신,이수언,황준표,정민규,고정흔,김봉훈 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2
Existing vital sign monitoring systems in the neonatal intensive care unit require multiple wires connected to rigid sensors with strongly adherent interfaces to the skin. We introduce a pair of ultrathin, soft, skin-like electronic devices whose coordinated, wireless operation reproduces the functionality of these traditional technologies but bypasses their intrinsic limitations. The advances in engineering science include designs that support wireless, battery-free operation; real-time, in-sensor data analytics; continuous data streaming; soft mechanics and adhesive interfaces to the skin; and compatibility with visual inspection and with medical imaging techniques used in the NICU. Preliminary studies on neonates admitted to operating NICUs demonstrate performance comparable to the most advanced clinical-standard monitoring systems. Not only it"s medical aid but also the effect of the emotional part of newly developed device could bring synergy to neonatal intensive care unit.