StartupStartupmm42mm63mm42 ...MNElectrical& ComputerVOUTVSSCINElectrical& Computer pu-tratSpu-tratSm?022COMPCOMPCCTRLCCTRLPower transistorsVTC + PFD + CPSampling+VTC+PFD+CPCmpCCTRLCmpCCTRL26KousukeMiyajiProfessor (2024-)He received Ph.Dfrom Univ. of Tokyo in 2008. He joined Shinshu Univ. in 2013. Research field: mixed signal integrated circuit design for efficient power management and sensor systems.ProfessorProfile：2013~ Prof., ShinshuUniv.2003~2012, Asso. Prof. ShinshuUniv.2002~2003, Researcher, Glasgow Univ. UKXiaoxiLiuIn the FutureAfter GraduationIn the FutureAfter GraduationEngineeringEngineering2.4mm330 ?mMP+MN220?mDriversControlDriversVINdecapsTop viewActive areaIC2.4mmX-ray photographMP6turn330?mCOUTVXVINCommercial CAD tools for integrated circuit design are provided for academic usage. Photographs of the 3D-integrated buck converter module. A controller chip designed by our lab is flip-mounted on the interposer with an embedded magnetic inductor fabricated by Sato-Soneharalab.PowermanagementcircuitsincludingDC-DCswitchingregulators,AC-DCconvertersaremandatoryelementsinelectronicdevices.Requirementsforhighefficiencyandhigh-powerdensityinthesecircuitsaregettingevenmorecriticaltorealizenewapplicationsandsystemslikeEV,sensornetwork,andmedicalimplants.Weareapproachingtothesenewchallengesbycollaboratingwithpowermanagementintegratedcircuitdesign,newdevicetechnologiesincludingmagneticdevicesandGaNFETs,and3D-packagingtechnologies.Ourresearchisfocusedondevelopingultra-fast,high-density,non-volatile,low-power-consumingmemoryandlogicdevicesbasedondirectmanipulationofelectronchargeandspin.Weareparticularlyinterestedincontrollingthespinseitherpointedupordownbydirectlyapplyingelectricalcurrentorvoltage.Ourlaboratoryhasspecializedfacilitiesforfilmdeposition.Lithographyinourlaboratoryhavetheabilitytofabricateelementsassmallasone-thousandththewidthofahumanhair.Wealsohavethefacilitiestocharacterizetheelectricalandmagneticpropertiesofthoseelements.Atnearfuture,manyservicestoimproveourQoLwillbeprovidedbyacquiringbigdatafromlargesensornetworksandanalyzingthemathugedatacenters.Ourresearchwillcontributetorealizingbattery-lesssensorsthatoperateforalongtermandagreendatacenter,wherecurrentdatacenterconsumespowerasmuchasanuclearpowerplant.Applicationstominimallyinvasivemedicalimplantdevicesarealsoexpected.Integratedcircuitisoneofthemostgeneralandbasictechnologies.Acquiringskillsofintegratedcircuitdesignwillhelpgettingjobsinmostoftheindustriesinengineeringaswellastraditionalelectric/electronicmanufacturers.railwayandmedicalcompaniesrecruitcircuitdesignersastheirsystemsareusingsomanyintegratedcircuits.Memoryandlogicalelementsarefundamentaldevicesforprocessinginformation.Currentmemoriesandlogicelementsarebasedonelectricalcharge.Withtheincreaseofcapacityanddensityofthedevices,leakagebecameanissue.Spintronicsexploitsboththeintrinsicspinandassociatedmagneticmomentofanelectron,andhasapotentialforthedevelopmentofmemoryandlogicaldevicesbeyondthecurrentCOMStechnologies.Around50%ofourundergraduatestudentsmovedontograduateschools.Someareworkingincompaniesthatspecializedinelectronicsystemordevices,andsomeareworkingasgovernmentemployees,et.al.Itisourgoaltofostercreativeandexcellentstudentswithglobalminds.Infact,someautomotive,AtomicforcemicroscopyimagesofnanolithographycarriedoutinourLabMagneticskyrmionsdrivingbyelectricfield.NanoLett.,2019,19(1),pp353–361,DOI:10.1021/acs.nanolett.8b03983.LayoutChip photoIntegrated Power ManagementCircuitDesignGreen IoT Based on Electron Spin
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