资源描述：
《电子模拟技术》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、电了模拟技术Chapter1test(100points,120minutes)One,fi11-in-the-blanks:(0.5points,25points)Then-typesemiconductorismadeupofaverysmallamountoffivevalenceelementsinthesemiconductor・Themajorityofthecarriersinthissemiconductorarefreeelectrons,afewofwhichareholes,andimpurities
2、thatcannotbemovedarepositivelycharged・Thep-typesemiconductoriscomposedofextremelysmalltrivalentelementsinthesemiconductor・Themajorityoftheinsideofthesemiconductorareemptyholes,andafewarefreeelectrons,whichcannotbemovedbyanegativecharge・Theinternalstructureofthetri
3、odeiscomposedofthelauncharea,thebasearea,thecollectingareaandthelaunchjunctionandthecollectorjunction.Theelectrodeofthetriodeisthetransmissionpole,baseandcollectorelectroderespectively.WhenthePNjunctionisbiased,thedirectionoftheexternalfieldisoppositetothedirectio
4、noftheinternalelectricfield,whichisbeneficialtomostcarriersThemovementofdiffusionisnotconducivetothedriftofminoritycarriers;P-njunctionreversebiased,thedirectionoftheelectricfieldandelectricfieldinthesamedirection,inhelpJanedriftmotionandnotconducivetothespreadoft
5、hechildren,thecurrentinthiscase,iscalledreversesaturationcurrent.4,p-njunctionintheprocessofformation,mostofp-typesemiconductorcarrierdiffusionfromPtoNarea,themajoritycarrierbyNtoPinn~typesemiconductorareatospread・Theresultofthediffusionistoestablishaspacechargear
6、eaontheboundaryofthearea,whichisdirectedbytheNregiontothep-block・Theestablishmentofthespacechargeregion,toweakentheeffecttothemajoritycarrierdiffusion,driftenhancedroleofJane,whenthesetwokindsofsportstoachievedynamicbalance,thePNjunctionformation.4,detectingdiodep
7、olarity,needamultimeterohmblockRx1krank,whosehandsdeflectionislargerwhenthedetection,incontactwiththeredtablerodelectrodeisdiodecathode;Theelectrodesincontactwiththeblacktablerodaretheanodeofthediode・Whendetectingadiode,adiodehasbeenpuncturedwhentheswitchbetweenth
8、etwowatchbarsisverylarge・Theswitchbetweenthetwowatchbarsisvery,verylong,andindicatesthatthediodeisnotaged・Theunipolartransistorisalsoknownasthefieldeffe
