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1、Unit1IntroductionLesson1SemiconductorMaterials《电子技术专业英语教程》冯新宇主编电子工业出版社www.phei.com.cn《电子技术专业英语教程》2021/9/12Lesson1SemiconductorMaterialsBackgroundsTexttourLanguageinuseVocabularyStructureReading/writingtechniques《电子技术专业英语教程》2021/9/13TerminologyConductor,Sem
2、iconductor&insulatorIC,ULSIIMPATT,LEDBackgrounds《电子技术专业英语教程》2021/9/14Terminology《电子技术专业英语教程》2021/9/15Ingeneral,allmaterialsmaybeclassifiedinthreemajorcategories—conductors,semiconductors,andinsulators-dependingupontheirabilitytoconductanelectriccurrent.通常，
3、根据材料导电性能的不同，可分为三种类型—导体，半导体和绝缘体。Conductor,Semiconductor&insulator《电子技术专业英语教程》2021/9/16Thematerialsmostoftenusedinsemiconductordevicesaregermaniumandsilicon.Silicon(Si)andgermanium(Ge)widelyusedelementalsemiconductors.通常用于半导体器件的半导体材料是锗和硅，它们是应用最广的半导体材料。Conduc
4、tor,Semiconductor&insulator《电子技术专业英语教程》2021/9/17Theintegratedcircuitisagroupoftransistorsmanufacturedfromasinglepieceofmaterialandconnectedtogetherinternally,withoutextrawiring.IntegratedcircuitsarealsocalledICsorchips.集成电路就是一组用单片材料制造的，内部互联的（无外部连线）晶体管。集成电路
5、也叫IC或者芯片。IC,ULSI《电子技术专业英语教程》2021/9/18Large-scaleintegration("LSI")cametorefertothecreationofintegratedcircuitsthathadpreviouslybeenmadefrommultiplediscretecomponents.ULSI：UltraLarge-scaleIntegration特大规模集成电路ULSIcircuitscancontain107-109transistors.IC,ULSI《电
6、子技术专业英语教程》2021/9/19IMPATT,LEDAnIMPATTdiode(ImpactIonizationAvalancheTransit-Time)isaformofhighpowerdiodeusedinhigh-frequencyelectronicsandmicrowavedevices.Theyoperateatfrequenciesbetweenabout3and100GHzormore碰撞雪崩渡越时间二极管用于高频率电子和微波器件中。它们的工作频率通常3-100兆赫兹以上。《电子技
7、术专业英语教程》2021/9/110IMPATT,LEDLED（LightEmittingDiode),itcanbedirectlychangethephoticsignalintotheelectricsignal.发光二极管可以把光信号直接转换成电信号。《电子技术专业英语教程》2021/9/111OutlineOverview(para.1,2,3,4,5)Siliconmaterial(para.6,7,8)Germaniummaterial(para.9,10,11,12)Theothersemi
8、conductormaterials(para.6,7,8,9)Texttour《电子技术专业英语教程》2021/9/112SiliconmaterialisthesecondmostabundantelementonearthSemiconductordevices…siliconwafer…Siliconmaterialapieceofsiliconwafer《电子技术专业英语教程》2021/9/113The
