Kev npaj txaus yog qhov tseem ceeb ua ntej pcb los ua ke:
Khoom npaj
Npaj cov ntaub ntawv xws li PCB cov laug cam thiab Cheebtsam hluav taws xob. Qhov zoo ntawm cov ntaub ntawv no cuam tshuam rau cov nyhuv teeb tsa thiab kev ua haujlwm ntawm cov khoom kawg.
Khoom debugging
Lub debugging ntawm cov khoom siv mounting kuj tseem ceeb heev. Qhov kev tso nkag tshuab yuav tsum tau ua kom meej meej teeb raws li qhov loj ntawm PCB board, hom thiab txheej txheem ntawm cov khoom siv.
SOLDER Muab Tshuaj Txhuam Luam Ntawv
SOLDER Muab tshuaj luam ntawv yog thawj kauj ruam ntawm PCB vaj huam sib luag mounting, ib yam li txheej txheej ntawm "lub hauv paus page" ntawm PCB vaj huam sib luag, tso lub hauv paus rau kev sib cav tom ntej.
Tus Hlau Mesh Ntau Lawm
Firstly, nws yog ib qhov tsim nyog los ua cov hlau tsim nyog. Qhov qhib loj thiab cov duab ntawm cov mesh steel mesh yuav tsum raug tsim raws li tus lej PIN thiab cov txheej txheem ntawm cov khoom siv.
SOLDER Muab Tshuaj Txhuam Luam Ntawv
Siv tus ham muab tshuaj txhuam tshuab luam ntawv rau kom ayly luam tawm ham muab rau lub PCB vaj huam sib luag. Thaum lub sij hawm cov txheej txheem luam ntawv, nws yog ib qho tseem ceeb kom tswj kom tsis muaj xws li kev siv tshuab luam ntawv, nrawm, thiab tuab. Yog tias lub tshuab luam ntawv siab dhau lawm, nws yuav ua rau ham muab rau txev; Yog tias luam ntawv ceev yog kev nrawm heev, nws yuav ua rau cov solden solder muab luam ntawv. Feem ntau hais lus, luam ntawv tuab ntawm solder muab tshuaj txhuam yog qhov haum ntau ntawm 0.1-0.2mm.
Txheej Txheem Mounting
Cov Txheej Txheem Mounting yog cov txheej txheem tseem ceeb ntawm tag nrho cov txheej txheem mounting, zoo li cov khoom siv hluav taws xob sib dhos ", nyob rau ntau yam hluav taws xob ua si yuav tsum tau ua kom raug thiab haum rau PCB cov laug cam.
Lag Luam SMT TSHUAB
Lub tshuab SMT siv cov qauv kev pom zoo los txheeb xyuas cov cim thiab cov haujlwm ntawm cov khoom siv ntawm PCB vaj huam sib luag, thiab tom qab ntawd qhov tseeb txuas rau cov khoom sib haum. Lub mounting ceev ntawm lub cav saum npoo yog heev heev, thiab ntau txhiab tus neeg tuaj yeem raug nce ib teev. Piv txwv li, lub siab - ceev cov npoo mount tshuab tuaj yeem mount 30000-50000 Cheebtsam ib teev.
Kev tswj hwm kev teeb tsa
Thaum lub sij hawm cov txheej txheem teeb tsa, nws yog qhov tsim nyog yuav tswj hwm qhov tseeb ntawm lub installation. Yog tias txoj haujlwm sib txawv ntawm cov kev sib xyaw ua ke yog qhov loj heev, nws yuav ua rau muaj teeb meem xws li soldering thiab luv luv voj voog. Feem ntau hais lus, qhov kev sib txawv ntawm kev sib txawv ntawm lub mounting yuav tsum tau tswj tsis pub dhau ± 0.1mm.
Reflow Soldering
Reflectow soldering yog cov txheej txheem ntawm muab tso ua ke PCB uas txuas nrog rau qhov chaw sov uas txuas rau ntawm cov khoom siv kub rau PCB los ua ke.
Qhov ntsuas kub nkhaus
Qhov ntsuas kub nkhaus tau teeb tsa ntawm kev xav ua soldering rauv yog qhov tseem ceeb heev. Qhov ntsuas kub nkhaus yuav tsum tau teeb tsa raws li cov tib yam xws li hom muab tshuaj txhuam thiab cov cua sov ua kom tsis taus ntawm cov khoom siv. Yog tias qhov ntsuas kub dhau lawm, nws yuav ua rau kev puas tsuaj rau cov khoom siv; Yog tias qhov ntsuas kub tsawg dhau, nws yuav ua rau muaj zog vuam. Feem ntau hais lus, lub ncov kub ntawm reflow soldering yog nruab nrab ntawm 230-250 degree.
Vuam Zoo Soj Ntsuam
Tom qab vuam yog ua tiav, lub vuam zoo yuav tsum tau kuaj xyuas. AOI (tsis siv neeg soj ntsuam) khoom siv lossis x - Ray soj ntsuam cov cuab yeej siv tau los kuaj pom muaj cov khoom siv virtual, thiab lwm yam teeb meem thaum lub sijhawm vuam.