title: Wireless thin film transistor based on micro magnetic induction coupling antenna.
abstract: A wireless thin film transistor (TFT) structure in which a source/drain or a gate is connected directly to a micro antenna to receive or transmit signals or power can be an important building block, acting as an electrical switch, a rectifier or an amplifier, for various electronics as well as microelectronics, since it allows simple connection with other devices, unlike conventional wire connections. An amorphous indium gallium zinc oxide (α-IGZO) TFT with magnetic antenna structure was fabricated and studied for this purpose. To enhance the induction coupling efficiency while maintaining the same small antenna size, a magnetic core structure consisting of Ni and nanowires was formed under the antenna. With the micro-antenna connected to a source/drain or a gate of the TFT, working electrical signals were well controlled. The results demonstrated the device as an alternative solution to existing wire connections which cause a number of problems in various fields such as flexible/wearable devices, body implanted devices, micro/nano robots, and sensors for the 'internet of things' (IoT).
authors.affiliation: Daegu Gyeongbuk Institute of Science and Technology (DGIST), Department of Information and Communication Engineering, Daegu, 711-873, Korea.
authors.forename: Byoung Ok
authors.initials: BO
authors.lastname: Jun
authors.affiliation: Daegu Gyeongbuk Institute of Science and Technology (DGIST), Department of Information and Communication Engineering, Daegu, 711-873, Korea.
authors.forename: Gwang Jun
authors.initials: GJ
authors.lastname: Lee
authors.affiliation: Daegu Gyeongbuk Institute of Science and Technology (DGIST), Department of Information and Communication Engineering, Daegu, 711-873, Korea.|Advanced Naval Technology Center, Agency for Defense Development, Changwon, 645-600, Korea.
authors.forename: Jong Gu
authors.initials: JG
authors.lastname: Kang
authors.affiliation: Daegu Gyeongbuk Institute of Science and Technology (DGIST), Department of Information and Communication Engineering, Daegu, 711-873, Korea.
authors.forename: Seunguk
authors.initials: S
authors.lastname: Kim
authors.affiliation: Daegu Gyeongbuk Institute of Science and Technology (DGIST), Department of Information and Communication Engineering, Daegu, 711-873, Korea.
authors.forename: Ji-Woong
authors.initials: JW
authors.lastname: Choi
authors.affiliation: University of Oxford, Department of Electrical Engineering Science, Oxford, OXI 3PJ, U. K.
authors.forename: Seung Nam
authors.initials: SN
authors.lastname: Cha
authors.affiliation: University of Oxford, Department of Electrical Engineering Science, Oxford, OXI 3PJ, U. K.
authors.forename: Jung Inn
authors.initials: JI
authors.lastname: Sohn
authors.affiliation: Daegu Gyeongbuk Institute of Science and Technology (DGIST), Department of Information and Communication Engineering, Daegu, 711-873, Korea.
authors.forename: Jae Eun
authors.initials: JE
authors.lastname: Jang