DC_DC电源转换BGA模块的设计开发

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1、上海交通大学硕士学位论文DC/DC电源转换BGA模块的设计开发姓名：彭双清申请学位级别：硕士专业：电子与通信工程指导教师：刘佩林;孙明20080501上海交通大学工程硕士学位论文abstractAbstractTheDC/DCswitchingpowerispopularindesignofpowersupplyfordigitalcamera,notebookPC,MP3,GPRSandsoon.Thedesignershavestresstodevelopthelongworkingtime,slimandhandsomeoutl

2、ineproducts.Itishardforthesesystemdesignerstodevelopthehighefficient,smalloutlineswitchingpowerastheyhavenotenoughexperienceinpowerdesign.Thedesignersmustcooperatewithpowersemiconductorsuppliers.ItwillbeagoodsolutionforthesuppliertodesignaDC/DCpowermoduleforthesesystemd

3、esigners.TherehavebeenSIP(systeminpackage)andMCM(multichipmodulepackage)technologyforsemiconductorssupplierstouse.ThedesignanddevelopmentofpowerBGAmoduleistocombinethepowerMOSFET,LCfilter,PWMcontrollerwithinaBGAmodule.FirstweselectpowerMOSFETasbaseforlowvoltageandhighcu

4、rrentapplication.OtherdevicesareselectedbythepowerMOSFETrequirement.ThenwemaketheBGAsubstratelayoutandsearchsomecompanytomanufactureit.AtthesametimewesearchtheBGAmodulepackageandtestPCBboardmanufacturers.Whenallthesepreparationareclosed,webuildtheevaluationtestboard.Wet

5、esttheBGAmodulepowerconversionefficiencybymeasurementinputandoutputvoltageandoutputcurrent.ThepowerBGAmoduleisshownthereasonableefficiency(80~90%).ThepowermoduledesignprovidesapromisingpowersupplysolutionfortheDSPandCPUwhichrequirethelowvoltageandhighpowerKeywords:switc

6、hingpower,SIP,PWM,POWERMOSFET第II页上海交通大学工程硕士学位论文附录1英文缩略语表BGABallGridArray球状栅格阵列BTBismalimideTriazineBVdsBreakDownVoltageOnDrainandSource崩溃电压CSPChipScalePackage芯片尺寸封装DCDirectCurrent直流DFNDualFlatNo－leadPackag双列扁平无角封装ICIntegrationCircuit集成电路MOSFETMetalOxideSemiconductorFiel

7、dEffectTransistor金属氧化物场效应晶体管PWMPulseWidthModulation脉冲宽度调制PCBPrintedCircuitBoard印刷电路板SOCSystemOnChip片上系统SIPSystemInPackage系统级封装SMTSurfaceMountTechnology表面贴装技术RdsonResistancewhenDrainandSourceon（功率晶体管）导通电阻VthThresholdVoltage阈值电压WLCSPWaferLevelChipScalePackag晶圆级芯片尺寸封装第79页上

8、海交通大学学位论文原创性声明本人郑重声明：所呈交的学位论文，是本人在导师的指导下，独立进行研究工作所取得的成果。除文中已经注明引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写过的作品成果。对本文的研究做出重要贡