2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、東南大學碩士學位論文MEMS熱式風速風向傳感器封裝技術(shù)研究姓名:顧興蓮申請學位級別:碩士專業(yè):電子科學與技術(shù);微電子學與固體電子學指導教師:秦明20110422ABSTRACTMeteorologicalmonitoringiscloselyrelatedtoindustriala11da鰣culturalproductionandpeople’sdailyliVes,柚dplays鋤importantroleiflmanyfields

2、,such鷦spaceeXplorationresourcesdevelopme她艦nsportationtourism,deVel叩mem觚dconstmctionaIldenViro衄entalpIIotectionAs鋤importaIltpanofthemeteorolo舀calmonitoring,meaSurementofwindspeeda11ddirectionprovideimportantmeteorological

3、info咖ationiIlthemeteorologicalmonitoringCullremly,thecoretechnology0fwindmonitoringsystemismonopolizedbytheforeigncompaniesTherefore,windse璐orSarmedbyMEMSsenSorSwithindependentimellectualpropertyrightsareVeDrimponantfort

4、hedevelopmentofChina’smeteorologicaliIlsnumentSWindsensorshaVeexperiencedalonghistory,f幻mtIleinitialpuremechanicaldeVicest0thepresentthe珊alwindsensorsusingM匣MStechnologyT11echipofMEMSthenIlalwindsensorisalreadyquitematur

5、e,sosui飯blepackagingtecllllologyf0rwindsellsormuStbedeveloped,othenⅣiseitwillhinderthedeVelopmentofwindsensorThepackagingshouldensurethegoodinteractionbeMeenthechipaIldtheteStingenViro姍em,besidesthebaLsicfunctio璐includin

6、gprotectionofthechipstmctureandthereliableelectricalconnectionTheIaboratoriesofm鋤ycountrieshaVebeenworking0nthistopicincludingthelaboftheauthorThecullrentstnJcture卸dpackageresearchsta_tusofthe咖alwindsellsorathomeandabroa

7、disfirstlys啪m撕zedinmispaper鋤dtheadVaIltages鋤ddisadV鋤tagesoftheVariouSpackagesisalsoconcluded,tIlen也emalsimulationaIld鋤alysisforthecen仃aldualheatingwindsenSorofcemmicsubstrateisdoneB越edonthOroI—ghresearch0n0perating卸ddete

8、ctingprinciple0fwindsensor,somedisadv觚tagesofthecen伽dualheatillgwindsellS0rarefouJldsuch觴nlec徹仃ol鋤ddetectioncircuitsarecomplex齟de11rorcompensationisdi塌culttoachieveInordert0solvetheseproblems,t量lecent豫ldualheating鰳mctu陀i

9、soptimizcd邪crossheatingstl_uctu陀ThecrossheatingwindsensorisstilluseC1’D(const鋤ttemperaturedifI’erence)con仃olprinciple觚dcalo劬etricdetectionp血ciple,a11ditcanmaintainthegoodthemlalpe響nn鋤ce叢thedualheatingstmcture,butbecauset

10、heresistorSforwindspeedaIldwinddirectionmeaSurememareseparated,thecontrolanddetectioncircuitsofcrossheatingstructurearereIatiVelymuchsimpler舔thatofdualheatingstlllctureThee∞r(nóng)compellsationise嬲yt0implementduetofoursymmetri

11、calheatresistorsinthecrossheatings伽JctureBaSedontheunderstalldingofthes打uctlJre0ftllecrossheatingwindsensor,coIlSidering恤chafaucteristicsofthes協(xié)lcture,theDCA(directchipa仕achment)packageuSingthebackofthechipt0sensethewind

12、isadoptedThesyStemleVelpackagingschemeisalsoproposediIlthispapIerUsingthebackofthethincer鋤iclayertosensethewindcannotonlyprotectthef如ntofthechip,butalseducet11eheatlOssf如mthe仃ansitionsubs臼ate1Ilorderto如Jdythe訪fluenceofth

13、epackageont11eperfomanceofthewindsensor,thebacksensing—windprincipleissimulated,andthentheinfluenceofthesystcm—leVelpackageonthel鋤in盯nowofthewindisstudied,theinfluenceoftheadhesiVeonthesensorperf0nn鋤ceisalsosimulatedaIld

14、testedontheb嬲isofthesesimulationandtesting,thepapersimulatedtheperfIonIlanceofthewindsensoratbothunpackaged鋤dpackagedst王咖seswimdi虢rentheatingpoweratnowindstale、difI’erentwindspeed、di仃erentwinddirectionsThesimulationresul

15、tfitst11etheoreticaJresultsTherepeatedtestingofthewindsenSoraRerthepackagingandinte哥atingcircuitmainlyfocusontheperf0n11anceofdetectingspeedanddirectionofwindThetestingresultindicatesthatthesensoraRerpackagingStilloperat

16、esaccordingt0theori西nalprinciple,鋤ditmatchestheidealsituationThetesting啪geofwindspeedis40m/SaIldthetestingrangeofwinddirectionis360。ComparedtheteStingandsirIlulationdataofthewindsensoraRerpackagingwiththatbeforepacl(agin

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