SMT作业流程及技术简介

12目錄目目錄錄.SMT...SMTSMT...SMT歷..SMTSMT歷歷.SMT流..SMTSMT流流.SMT..SMTSMT3.SMT...SMTSMT..路4.SMT歷..SMTSMT歷歷•年•年了里•年•療行SMT•1.省50~70%.•2.量省.•3.更數零.•4.更力.•5.零.•6.省.•7.降.5SMT車6流料BareBoardBakingSolderPastePrintingMultiFunctionMountingVisualInsp.b/fReflow流ReflowSoldering理Rework/Repair爐GlueDispnsingHi-SpeedMounting理Rework/RepairPCBLoadingVI.afterprintingM.I/A.IWaveSoldering/Assembly/VIStock7PS2SMTDIPPRODUCTIONFLOWCHARTNGokNG料BarcodeNGokNG料BarcodeNG料A-SIDEB-SIDEB-SIDENGNGokAOIAOIAOIokDIP8流9(UP2000):---參數---/---------PCB--識10LasercutandelectropolishedstencilMetalsqueegeeLength:14”&16”Solderpaste(UP2000)11(UP2000)PCBCAMERA12OK13理•冷(0~100)•不•不留1,不2•“2”•,(,3-5,,不粒):離14(MSH3)-識-162Nozzle-度:0.075Sec/Comp,48000comps/hour-零類:1005mmChip~18*18mmQFP,6.5mmHeight.15HeadunitPCBcamera16料列Feeder17識8*4FEEDER8*4FEEDER16*12FEEDER16*8FEEDER18料識FEEDERFEEDER料料19W*4PPAPER8W料度mmWmmPAPERFeederFeeder20(MV2VB):---參數---Program---Feeder&Nozzle---來料-識-12,5Nozzle-度:0.1Sec/Comp-零類:0402mmChip~32*32mmQFP6.5mmHeight.21PCBCameraRotaryHeadunitPartsrecg.camera22(MPAV2B)-4,Nozzle-TapeFeeder&Tray料-2D&3D識-度:0.53Sec/QFP,0.44Sec/chip23HeadunitPartsrecg.camera-零類:1005mmChip~55*55mmQFPL150*W55*H25,BGA,CSP24OK25爐(Heller1800exl):-Tempprofile-/-來料-流-+-滑26爐(Heller1800exl)SP:度PV:度BELT:度27度28Keeptheslopelowtominimizemotherboardwarpingduringpreheatandcooldown.Peaktemp215+/-10degCSlope3degC/secTimeaboveliquidus45-90secondsSlope-2-5degC/secHoldat140-183degCfor60~90Seconds183CBoardTemp()()()(冷)Time130-160Crange:Extendedperiodallowsboardtemperaturetostabilize(warp)andallowsfluxtofinishcleaningpriortoreflow.Alsohelpminimizethermalofreflow.SMTReflowSolderingProfileforsolderpaste(1)Slope2degC/secPreheatSoakReflow29SMT30.SMT..SMTSMTSMT産123爐31SMT术度Chip行32SMT术度QFP,SOICPitch0.65mmPitch0.65mmPitch0.5mmPitch0.4mmPitch33SMT术切抛34SMT术切35SMT术SMT流SMT36SMT术SMT流料PCBSMT37SMT术PCB0.5mmPitchIC’sbridging例~~~~Productname:Winterset不理了路率路數量不量38SMT术例~~~~料0.5mmPitchIC’sbridging0402料不良39SMT术应铅导让路缩进进产将铅规须执行40SMT术—路—參數——流铅—料—金料度量金料度—零料力—度量—量41SMT术金料度金度度63/37182.1183.096.5/3.5219.7220.899.3/0.7225.7227.095.5/3.8/0.7216.3217.593.6/4.7/1.7215.9218.296.2/2.5/0.8/0.5216.9218.291.7/3.5/4.8202.1215.190.5/7.5/2190.6214.758/42136.3138.595/5238.3240.389/8/3190.6195.442SMT术SMTSMT更SMT更