微电子专业外语3.pptxVIP

专业外语姓名：陈军宁蔺智挺

时间：二○一二年三月

BasicMOSDevicePhysicsThisflexibilityofPFETsisexploitedinsomeanalogcircuits.ThecircuitsymbolsusedtorepresentNMOSandPMOStransistorsareshowninFig.2.5.注意：flexibility，exploited，useDesignofAnalogCOMSIntegratedCircuit

flexibility，exploitedflexibility[英][?fleks??b?l?t?][美][?fl?ks??b?l?t?]n.柔韧性，机动性，灵活性exploitvt.开采；开拓；利用（……为自己谋利）；剥削近义词advantage得益，获利DesignofAnalogCOMSIntegratedCircuit

useusedto是“过去曾经...”的意思，后接动词比如：Heusedtobeateacher。他曾经是一名教师Iusedtogoswimmingonceaweek。我曾经每周都去游泳beusedto是“习惯...”的意思，后接名词Heisusedtogettingupearly.他习惯了早起Maryisusedtoherhusband‘sbadtemper.Mary习惯了她丈夫的坏脾气DesignofAnalogCOMSIntegratedCircuit

usegetusedto强调的是由“不习惯”到“习惯”的这个过程，而“beusedto”所强调的只是“习惯了”这个状态DesignofAnalogCOMSIntegratedCircuit

BasicMOSDevicePhysicsThesymbolsinFig.2.5(b)containallfourterminals,withthesubstratedenotedbyB(bulk)ratherthanStoavoidconfusionwiththesource.注意：avoid+n/-ingDesignofAnalogCOMSIntegratedCircuit

BasicMOSDevicePhysicsThesourceofthePMOSdeviceispositionedontopasavisualaidbecauseithasahigherpotentialthanitsgate.注意：asavisualaid作为视觉辅助DesignofAnalogCOMSIntegratedCircuit

BasicMOSDevicePhysicsSinceinmostcircuitsthebulkterminalsofNMOSandPMOSdevicesaretiedtogroundandVdd,respectively,weusuallyomittheseconnectionsindrawingFig.2.5(a).注意：omit;indrawingFigxxDesignofAnalogCOMSIntegratedCircuit

omitomit是省略

neglect是不经意的忽视而ignore是故意不理其他近义词skip,missDesignofAnalogCOMSIntegratedCircuit

BasicMOSDevicePhysicsIndigitalcircuits,itiscustomarytousethe“switchsymbolsdepictedinFig.2.5(c)forthetwotypes,butwepreferthoseinFig.2.5(a)becausethevisualdistinctionbetweenDandSproveshelpfulinunderstandingtheoperationofcircuits.注意：preferDesignofAnalogCOMSIntegratedCircuit

prefer1、后接不定式时与ratherthan或insteadof连用，如：Hepreferred