2020-2022 YAMAGATA UNIVERSITY Research Seeds Collection
56/90

54Illustration1 wavelength SDA coupled JJ detectorOptical-microscope imageCurrent-Voltage characteristics(2) Octagonal MOSFETMulti Sensor DeviceThe sensor probe(3) Low-Power Micro Computer System forData analysis using IoTThe trackingsystem using M5StackThe operational unitfrom sensors(1) Ultra-Low Voltage LSI(PWM Arithmetic circuit)shown.ThefigureofI-VcharacteristicsContent:ContentLSIs (Large Scale IC) are necessary for our life because these  LSIs (Large Scale IC) are necessary for our life because devices are built in any electronics systems, such as mobile phone, these devices are built in any electronics systems, such as personal computer, car, and etc. However, power consumption of LSI mobile phone, personal computer, car, and etc. However, systems is very important. If a power consumption realizes very low, power consumption of LSI systems is very important. If a power consumption realizes very low, they can achieve long they can achieve long term and no heating operation ( more than 1 term and no heating operation (more than 1year and no heat year and no heat sink) using battery or limited-power supply unit. sink) using battery or limited-power supply unit. Thus, I’m Thus, I’m now studying three research topics.now studying three research topics.(1) Ultra-Low Voltage Analog/Digital Integrated Circuits (1)Ultra-Low Voltage Analog/Digital Integrated Circuits using using Subthreshold Region (nano-order ampere Subthreshold Region (nano-order ampere region)region)(2) MOSFET based Semiconductor Sensor and Circuit Device as (2) MOSFET based Semiconductor Sensor and Circuit the Common LSI and Sensor Platform DesignDevice as the Common LSI and Sensor Platform Design(3) IoT/ICT based Low-Power Signal Processing System and (3) IoT/ICT based Low-Power Signal Processing System Data Analysisand Data AnalysisAppealing point:It is the only my lab where you can acquire a wide range of Special objectivesknowledge, from sensor devices to electronic circuits, to the construction and operation of systems and networks that make full  It is the only my lab where you can acquire a wide range of knowledge, from sensor devices to electronic circuits, to use of IoT / ICT! Please contact me, and let’s study together!the construction and operation of systems and networks that make full use of IoT/ICT! Please contact me, and let’s study together!Yamagata UniversityGraduate School of Science and Engineering Research Interest :Intelligent Integrated Circuit,Yamagata University Graduate School of Science and Engineering Research InterestE-mail :tharada@yz.yamagata-u.ac.jpIntelligent Integrated Circuit, Semiconductor Sensor, IoT/ICT Tel :+81-238-26-3275systemFax:+81-238-26-3299E-mail ・ tharada@yz.yamagata-u.ac.jpTel ・ +81-238-26-3275Fax ・ +81-238-26-3299HP :http://harada-lab.yz.yamagata-u.ac.jp/HP・ http://harada-lab.yz.yamagata-u.ac.jp/Semiconductor Sensor, IoT/ICT systemTerahertz(THz)waveisIhaveexaminedTHz-wavedetectorsusinghigh-temperatureContentContent:theelectromagneticwavewhose Terahertz (THz) wave is the electromagnetic wave whose frequencyisaround0.1-10THz,andisexpectedtobeusedforfrequency is around 0.1-10 THz, and is expected to be used communicating,imaging,security,andsoon.Itisimportantforfor communicating, imaging, security, and so on. It is THz-waveapplicationstodevelopwideband,high-sensitive,high-important for THz-wave applications to develop wideband, high-sensitive, high-speed and easy to cool detectors.speedandeasytocooldetectors. The figures show the optical-microscope images and the Thefiguresshowtheoptical-microscopeimagesandthecurrent-current-voltage (I-V) characteristics of a THz-wave detector voltage(I-V)characteristicsofaTHz-wavedetectorinwhichain which a Josephson junction (JJ) is coupled with a 1 Josephsonjunction(JJ)iscoupledwitha1wavelengthslot-dipolewavelength slot-dipole antenna (SDA). In the enlarged image, antenna(SDA).Intheenlargedimage,thepartlikeablackbridgeisthe part like a black bridge is the JJ, and the horizontally theJJ,andthehorizontallywidewhitepartisaSDA,inwhichthewide white part is a SDA, in which the substrate is shown. substrateisshowsThe figure of I-V characteristics shows characteristics for characteristicsforvariouspowerofTHz-wavesidebyside.Whenvarious power of THz-wave side by side. When THz-wave THz-wavewasirradiatedtothedetector,theI-Vcharacteristicshadwas irradiated to the detector, the I-V characteristics had some steps (Shapiro steps) and were varied depending on somesteps(Shapirosteps)andwerevarieddependingonthepower.the power.Appealingpoint:Special objectivessuperconductorsforthespreadofTHztechnique. I have examined THz-wave detectors using high-temperature superconductors for the spread of THz technique.Yamagata UniversityGraduate School of Science and Engineering Yamagata University Graduate School of Science and Engineering Research Interest :Superconductivity, MeasurementResearch InterestSuperconductivity, MeasurementE-mail :hyamada@yz.yamagata-u.ac.jpTel :+81-238-26-3271E-mail ・ hyamada@yz.yamagata-u.ac.jpHP :http://yamada-lab.yz.yamagata-u.ac.jpTel ・ +81-238-26-3271HP・ http://yamada-lab.yz.yamagata-u.ac.jpTerahertz-wave detectors using high-temperature superconductorsAssistant Professor TomochikaHaradaLow Power Subthreshold LSI, MOSFET based Sensor, and IoT/ICT SystemLow Power Subthreshold LSI, MOSFET based Sensor, and IoT/ICT SystemAssistant Professor Tomochika HaradaThe Sleep MonitoringSystemTerahertz-wave detectors using high-temperature superconductorsAssistant Professor Hironobu YAMADAAssistant Professor Hironobu Yamada

元のページ  ../index.html#56

このブックを見る