Hong Kiwoong, Cho Jonam, Shin Gunchul
School of Materials Science and Engineering, University of Ulsan, 12 Technosaneop-ro 55 beon-gil, Nam-gu, Ulsan 44776, Korea.
Materials (Basel). 2022 May 3;15(9):3275. doi: 10.3390/ma15093275.
The development of microelectronics has been achieved by improving its performance through miniaturization. This was possible through the development of silicon-based semiconductor process technology, but recently, the demand for wearable or flexible devices has increased. These devices are made using various functional elements based on materials that are difficult to utilize with semiconductor devices that contain existing hard silicon-based materials and are bent or flexibly stretched. In this study, wireless antennas suitable for wearable devices were implemented in a stretchable form. It was possible to stably receive a wireless signal, even with a strain of 20% or more, and power light-emitting diodes (LEDs), microheaters, etc. By devising a multi-layered stack antenna without the existing semiconductor process, it was possible to improve the antenna's reception performance. It is expected that this can be applied in various ways to smart wireless sensors and wearable biomedical devices using the near-field communication (NFC) of smartphones.
微电子学的发展是通过小型化来提高其性能而实现的。这得益于硅基半导体工艺技术的发展，但最近，对可穿戴或柔性设备的需求有所增加。这些设备是使用基于各种功能元件制成的，这些材料难以与包含现有硬质硅基材料的半导体设备一起使用，并且可以弯曲或灵活拉伸。在本研究中，以可拉伸的形式实现了适用于可穿戴设备的无线天线。即使在20%或更高的应变下，也能够稳定地接收无线信号，并为发光二极管（LED）、微型加热器等供电。通过设计一种无需现有半导体工艺的多层堆叠天线，可以提高天线的接收性能。预计这可以以各种方式应用于使用智能手机近场通信（NFC）的智能无线传感器和可穿戴生物医学设备。
