自动光学检测技术的应用与发展.ppt

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1、自動光學檢測技術的應用與發展AutomatedOpticalInspectionAOI是什麼?AutomatedOpticalInspection自動光學檢查機一般區分為：COLORCCDCAMERAB/WCCDCAMERA2AOI可以做什麼?外觀檢查PCB製造業電子加工業半導體產業汽車燈泡內殼零組件生產其他3AOIandElectricalTestAreBestUsedTogether>Lowsolder>Unwettedpins>Missingbypasscaps>Skewed/misplace

2、ddevices>Billboardeddevices>Openpowerorparallelpins>SurfacedefectsAOIAOIDoesnotrequireatestfixtureEasilyappliedtopartially-builtboards.Directsolderingprocessfeedback.Improvedprocessmonitoringbydetectingdefectsearlier.AppliesboardpowerTestscomponentfun

3、ction,toleranceandpossiblyboardfunctionCantesthiddenfeatures>Wrongdevices>Misorienteddevice(cap,diode)>Deviceprogramming(flashROM)>Devicedefects(e.g.cracked,IC)>BGAandotherhiddenpins>BasicdevicefunctionElectricaltestElectricaltestLiftedleadsTombstoned

4、MissingdeviceMisorientedIcsBillboardedOpenpowerorparallelpinsSurfacedefects4AOI的檢查原理VerticalLightDifferenceLightHorizontalLight5AOI的檢查原理RedorwhitemonolightingColorlightingwithindependentlightzonesColorlightingisveryeffectiveforbackgroundimagenoiseelim

5、inationAOI的檢查光源In-lineAOI-TR7500TR7500-Max.boardsize:510*460mmResolution:10,15,20,25um(14sec@M-sizePCB,excludingfiducialmarkfindingandloadingtime)-Camera:1topXGA3CCDcamera(1024x768)4angleXGAMonocamera(1024x768)-LightingSystem:RGB+WhiteLEDX-Ytable:1umre

6、solutionZAxis:1umresolution(Option)-Min.Chipsize:01005RepairStation(Option)andShopFloorControlWindows2000/XPEthernetRepairstationShopfloorsystemSPCSixSigma硬體:1.3-CCD的真彩鏡頭.2.環光燈盤.軟體:1.Phase&Weighting2.白平衡影像的強化.3.HSI影像補償.4.錫型檢測.無鉛製程的檢測挑戰與解決方案IPC-A-610D,F

7、eb/2005IPC-A-610DTin/LeadvsLeadfree3CCD成像與1CCD成像的差異3CCD可以用三原色的取相(PHASE)方式賦予不同的權重加以堆疊,進而強化所需檢測的物件影像.以1CCD的取相方式較無法清晰的顯現主體,且無法強化或凸顯所檢測的待測物.被測影像往往在放大之後會呈現出馬賽克影像.檢測圖像模糊不清,檢測員複判困難1CCDor3CCDLessdataforcolorColorenhanceisdifficultImagequalityispoorCCD(ChargeCo

8、upleDevice)structure1CCDStructure3CCDDigitalTechnology3CCDtypecamerahave3differentCCDtoreceiveDifferentcolor.ColorPhaseWeightingEffectColor/MonoImageexample環光光盤的錫型檢測原理錫型檢測方法鋼珠：白光鋼珠：環光斜率轉換錫型分析InsufficientsolderNormalExcessiveSolderSolder