SMT基础知识培训1

T.timesSMTT.times……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………T.times……………………………………………………………………………………………………………………T.timesT.timesT.times1ab1/8w(Chip)1/8w1/4w1/2w1w2wcd()F=1G=2J=5eT.timesT.timesT.times2a(K)(M)()b1G=103M=106K=1091=10-3K=10-6M=10-9Gc102=10001001=1000+1%470=471R0=1105=1MT.times3a电号们电号bR4T.times5RUIR=U/IT.times6aCHIP332103=332K27105=2.7M100101=1000100102=10K332327510011002T.timesb绿蓝码环环为环电环应数环为数环为环为误红红为T.times7a7.6K5环为蓝红b7.61K1环为蓝c820K环环环为红环为红(环误为环误为)T.times()RC--05K1ROJT()0204021/16WK100ppm/1R0=1.0F=1T0306031/16WL200ppm/000=G=2B0508051/10WJ=50612061/8W1/4WO=T.times1a为电电电为电电钽质电电电(电)胶电(麦电)bcdT.times2(1)电电号两为电为电(2)电C(3)电(4)贮电贮电电滤3a电单单为(F)(mF)(UF)纳(nF)(PF)b换1F=103MF=106UF=109NF=1012PFT.times4(EC)10UF50V105,uF223J10uf50vT.times5(CC)50V100V500V0.022UF223J22103PF=0.022UF“J”56(MC)104J0.1UFJ100VT.times7()PF(1)0.12UF10(2)0.12UF58B:0.1%,C:0.25%,D:0.5%,F:1%,G:2%,J:5%,K:10%,M:20%,N:30%,Z:+80%-20%T.timesT.times()CC41—0805CG102K500NTCC41:()CT41:0603COG1021000pFD=0.5pF16016VS0805NNPO1R01pFF=1%25025VN1206BX7RK=10%50050V1210FY5VM=20%63063V1812E/ZZ5UZ=+80-20%101100VT.times1PN,PNPN“PN”PNT.times2aPNPNPN:;bPINPINDiode;cSBDLED/;dGeSiT.times34123T.times5PN“D”3T.times6(D)稳压(ZD)发(LED)7RX1KRX1T.timesT.times1PNPNPNPNPNbecbcebecNPNPNPT.times2Ic/Ib“”3QT.times4ebcebcT.timesT.times1L电号为2单为(H)(MH)(UH)H)31H=101MH=106UHT.times1(IntegratedCircuit,IC(Microprocessor)(LogicIC)(MemoryIC)AnalogIC2(IntegratedCircuit,IC,T.times3(IntegratedCircuit,IC(IntegratedCircuit,ICJEDECEIAJEIAJJEDECSOP-D14Pin16PinSOP-DW20PinJEDECSOP-NS20PinEIAJT.times(IntegratedCircuit,ICDIPDualInLinePackage,PDIPPlasticDIPW=600mile=254mmPSDIPPlasticSmallDIPW=300mile=254mmCDIPCeramicDIP,W=600mile=254mmT.times(IntegratedCircuit,ICSOP(SmallOutlinePackage,SOIC.SO)SOP-DW=150mile=1.27mm,8/14/16PinSOP-DWW=300mile=1.27mm,16/20/24/28PinSOP-NSW=208mile=1.27mm,14/16/20/24PinSOP-DCKW=50mile=0.65mm5PinT.times(IntegratedCircuit,ICSSOPShrinkSmallOutlinePackage,T.times(IntegratedCircuit,ICTSOPThinSmallOutlinePackage,ABABT.times(IntegratedCircuit,ICSOJSmallOutlineJ,JT.times(IntegratedCircuit,ICPLCCPlasticLeadedChipCarrier,T.times(IntegratedCircuit,ICQFPQuadFlatPackage,PQFPQFPe=065mmTQFPQFPe=05mmT.times(IntegratedCircuit,ICPGAPinGridArray,T.times(IntegratedCircuit,ICBGABallGridArray,T.times(IntegratedCircuit,ICT.timesT.timesT.timesT.timesT.timesT.timesT.timesMIAI(MI,AI)1MI2AI3AI1.5mm0.3mm30154AIPCB5T.timesT.timesAI领装装执锡检测试OQCOQA货MI领脚执锡检测试OQCOQA货T.timesT.times1DIP23T.times1(1)A30W40W60W;B60W60W;C()ICCHIP(2)A;BCHIP;CICT.times2铁温关15W280----40020W290----41025W300----42030W310----43040W320----44050W320----44060W340----450T.times3(1)AB(2)PCB45(3)(4)(5)()T.times1类锡丝径为0.60.81.01.22锡丝锡铅组为63:3765:35会2剂(会为)剂锡丝为锡剂较产则3铁剂(1)时将铁头45将锡丝锡脚(2)锡丝铁则锡则锡丝T.times1标将对为2当会铁头时温变;会导铁头寿缩会导温温响质时间3当们时应边开个为将铁残锡T.times饱满盘脚圆锥状1PCB2铜锡3铁温45锡质6锡线剂7对断T.times12铁温3锡线质4员业练T.times1点锡锡2脚悬PCB铜脚圆T.times3()(1)(2)PCBT.times4T.times270T.timesT.timesT.timesT.timesSMTTHTJIAQAQAT.times1(Loader)PCPCSMTPC2(VacwumLoader)(Vacwum)PCB100~200PCST.times3(SolderPaste)(SolderPaste)(Stencil)(PCB)(1)(2)(3)(SemiAuto);(4)4(PickandPlacementSystem)SMTOK(BOM)5/OK/PCBSMTT.timesT.timesT.timesT.timesDIPSMTICTB/IT.times1PCBPC(Component)(BOM)PCB1):PCB2):PCBT.times2LeadPCBPad(Sn63Pb73)LeadPCBPad:240~26040~503.5~5S34PASS5ICT(1)(R)(C)(L)(TR)T.times(2)PCBPCBA(3)ICTTestRESETREJECTABORTACCEPTDOWNTESTDOWNRESETDOWNABORTACCEPTREJECTT.times6B/I(1):(2):B/IT.timesICTT.timesT.timesSMTSMTICTSMT1产场为尘车间2车间温20~26间湿为50%~80%间3产锡红胶须温0~10间4红胶锡须经过4时温红胶锡温温状态5锡时须经搅搅时间5钟开锡须24时则报废处T.times()22CHIP规()()LW040210051.0mm0.5mm060316081.6mm0.8mm080521252.0mm1.25mm120632163.2mm1.6mm121032253.2mm2.5mmT.times号PCB号号PCB号电R调电CT电C发X电电EC电IC电LCN级D丝F级Q线G滤CF滤BPF电E线JPJWAC开关SWDC线TT.times1锡杂质2压20N3钢60--704钢开应PCB盘锡开5钢锡钢0.12mm~015mm红胶钢0.8mm~0.25mmT.times61-2m/minPCB时轻轻7锡长时间时间过1时8锡9锡锡应报废处10锡时钢动时为宽1/3动时T.times12345T.times12当热3当锡1属2热过3锡张锡湿润铜4T.times锡锡状贴剂属剂动调贴剂锡锡T.times,,T.times1;2;3ABCT.times1AB2ABT.times12345678910T.times1AB;CDEFGHT.times2---PDCAP()D()C()A()ABC()D5W1H(WHY)(WHAT)(WHERE)(WHO)(WHEN)(HOW)EFGH(PCBA)T.timesPDCA1PDCAPDCA23PDCA123456T.times1(IQC)AB2(IPQC)ABCT.times()1ABC23T.times45678T.times1230%345678T.times123ABCDET.times1质检门务A编质检验计B严关检验C质动态质D严执质E参产试鉴F选择检验积进检测G关门务H质检验设检验员术质质I参订关质T.times2质检验计()()ABCDEFGT.timesT.times¾¾¾T.timesESDElectrostaticDischarge(静电电)ElectrostaticDissipative(静电)ESD,,,,,,,,T.times,1:(:)2:(,:,)3:(,,,:,,,,)1,2,,T.times,,,,,,,123456T.times,,01000V10004000V,:,,PCB,,,,,:12,3T.times1:(1)(2)(3)(4)2:(1)(2)(3)(4)1234T.times1:,2:A)B)C)D)E)3:A)B)C)D)E)4:A)B)T.times:T.times1:2:ABC3:AB4:AICICBC5:A/BCDET.times(1)(2)(3)ALOWBGOODCHIGH