Qhov kev xeem pcba yog dab tsi

PCBA thaj ua cov txheej txheem yog qhov nyuaj heev, suav nrog PCB pawg thawj coj ua txheej txheem, kev tsim khoom thiab tshuaj xyuas, SMT thaj sib dhos, DIP plug-in, PCBA kuaj thiab lwm yam txheej txheem tseem ceeb. Ntawm lawv, PCBA xeem yog qhov tseem ceeb tshaj plaws kev tswj xyuas kev sib txuas hauv tag nrho cov txheej txheem PCBA, uas txiav txim siab qhov ua tau zoo kawg ntawm cov khoom. Yog li cov ntawv xeem PCBA yog dab tsi?Pcba xeem yog dab tsi

1, ICT xeem feem ntau suav nrog Circuit Court on-off, voltage thiab tam sim no qhov tseem ceeb thiab yoj nkhaus, amplitude, suab nrov, thiab lwm yam.

2, FCT xeem yuav tsum tau nqa tawm IC program firing, simulate lub luag hauj lwm ntawm tag nrho cov PCBA pawg thawj coj saib, nrhiav cov teeb meem nyob rau hauv lub hardware thiab software, thiab nruab nrog lub tsim nyog patch processing ntau lawm fixture thiab xeem khib.

3, qhov kev sim qaug zog yog qhov tseem ceeb rau cov qauv ntawm PCBA lub rooj tsavxwm, thiab ua kom muaj kev ua haujlwm siab thiab ua haujlwm ntev, saib seb puas tshwm sim, txiav txim qhov tshwm sim ntawm qhov tsis ua haujlwm hauv qhov kev xeem, thiab tawm tswv yim txog kev ua haujlwm ntawm PCBA. board nyob rau hauv cov khoom siv hluav taws xob.

4, qhov kev sim nyob rau hauv ib puag ncig hnyav yog tsuas yog nthuav tawm PCBA board rau qhov kub thiab txias, av noo, poob, txaws, kev vibration ntawm tus nqi txwv, kom tau txais cov txiaj ntsig ntawm cov qauv random, thiaj li ua kom ntseeg tau ntawm tag nrho PCBA pawg thawj coj saib. pawg.

5, aging test yog tsuas yog rau lub hwj chim PCBA lub rooj tsavxwm thiab cov khoom siv hluav taws xob rau lub sijhawm ntev, ua kom nws ua haujlwm thiab saib seb puas muaj qhov tsis ua haujlwm, tom qab kev laus kuaj cov khoom siv hluav taws xob tuaj yeem muag hauv batches.PCBA txheej txheem yog complex, hauv kev tsim khoom thiab Cov txheej txheem ua tiav, tej zaum yuav muaj ntau yam teeb meem vim yog cov khoom siv tsis raug lossis kev ua haujlwm, tsis tuaj yeem lav tias cov khoom tsim tau tsim nyog, yog li nws yuav tsum tau ua raws li PCB kuaj xyuas kom ntseeg tau tias txhua yam khoom yuav tsis muaj teeb meem zoo.

Yuav ua li cas kuaj pcba

PCBA xeem cov txheej txheem, feem ntau yog cov hauv qab no:

1. Kev xeem ntawv

Kev ntsuam xyuas phau ntawv yog ncaj qha rau kev cia siab rau kev pom los ntawm kev sim, los ntawm kev pom thiab kev sib piv kom paub meej tias kev teeb tsa ntawm cov khoom hauv PCB, cov cuab yeej no tau siv dav heev. Txawm li cas los xij, tus lej loj thiab cov khoom me me ua rau txoj kev no tsawg thiab tsis tsim nyog. Ntxiv mus, qee qhov kev ua haujlwm tsis zoo tsis yooj yim tshawb pom thiab sau cov ntaub ntawv nyuaj. Nyob rau hauv txoj kev no, ntau txoj kev kuaj kev tshaj lij yog xav tau.

2, Tsis Siv Neeg Optical Inspection (AOI)

Tsis siv neeg kho qhov muag pom, tseem hu ua kev kuaj pom tsis siv neeg, yog ua los ntawm lub tshuab kuaj xyuas tshwj xeeb, siv ua ntej thiab tom qab reflux, thiab cov polarity ntawm cov khoom zoo dua. Ib qho yooj yim ua raws li kev kuaj mob yog ib txoj hauv kev, tab sis txoj kev no tsis zoo rau kev txheeb xyuas luv luv.

3, ya koob xeem tshuab

Kev ntsuas koob tau txais kev muaj koob meej nyob rau ob peb xyoos dhau los vim muaj kev nce qib hauv cov neeg kho tshuab qhov tseeb, ceev, thiab kev ntseeg tau. Tsis tas li ntawd, qhov kev thov tam sim no rau kev sim ntsuas nrog kev hloov pauv sai thiab muaj peev xwm tsis muaj jig yuav tsum muaj rau Prototype manufacturing thiab low-volume manufacturing ua flying needle testing the best choice.4. Kev kuaj ua haujlwm

Qhov no yog ib qho kev sim rau ib qho PCB lossis ib chav tsev tshwj xeeb, uas yog ua los ntawm cov cuab yeej tshwj xeeb. Muaj ob hom kev sim ua haujlwm tseem ceeb: Kev Xeem Khoom Kawg thiab Kub Mock-up.

5. Manufacturing Defect Analyzer (MDA)

Cov txiaj ntsig tseem ceeb ntawm txoj kev sim no yog tus nqi qis dua, cov zis siab, yooj yim rau kev kuaj xyuas thiab ua tiav qhov luv luv Circuit Court thiab qhib Circuit Court kuaj. Qhov tsis zoo yog qhov kev sim ua haujlwm tsis tuaj yeem ua tau, feem ntau tsis muaj qhov ntsuas qhov ntsuas, yuav tsum tau siv cov khoom siv, thiab cov nqi xeem yog siab.

pcba test khoom

Cov khoom siv PCBA feem ntau yog: ICT online tester, FCT functional test thiab aging test.

1, ICT online tester

ICT yog qhov ntsuas tsis siv neeg online, uas muaj ntau yam kev siv thiab yooj yim rau kev khiav lag luam. ICT tsis siv neeg online ntes yog tsuas yog rau kev tswj cov txheej txheem ntau lawm, tuaj yeem ntsuas kev tiv thaiv, capacitance, inductance, integrated circuit. Nws yog qhov tshwj xeeb tshaj yog siv rau kev tshawb xyuas qhov qhib Circuit Court, luv Circuit Court, tiv thaiv kev puas tsuaj, thiab lwm yam, qhov tseeb qhov chaw txhaum, kev saib xyuas yooj yim.

2. FCT functional test

FCT muaj nuj nqi xeem yog muab kev simulation ua haujlwm ib puag ncig xws li excitation thiab load rau PCBA pawg thawj coj saib, thiab tau txais ntau lub xeev tsis txwv ntawm lub rooj tsavxwm los ntsuam xyuas seb qhov kev ua haujlwm tsis zoo ntawm lub rooj tsavxwm ua tau raws li cov qauv tsim. FCT functional test khoom feem ntau suav nrog voltage, tam sim no, lub zog, lub zog muaj zog, zaus, lub voj voog lub luag haujlwm, ci ntsa iab thiab xim, kev paub txog tus cwj pwm, lub suab lees paub, ntsuas qhov ntsuas kub, ntsuas ntsuas, ntsuas kev txav, FLASH thiab EEPROM hlawv.

3. Kev kuaj kev laus

Kev kuaj kev laus yog hais txog cov txheej txheem ntawm kev simulating ntau yam cuam tshuam rau hauv cov xwm txheej tiag tiag ntawm kev siv cov khoom los ua kom tiav qhov kev sim ua kom zoo dua qub. Lub PCBA pawg thawj coj ntawm cov khoom siv hluav taws xob tuaj yeem siv tau ntev los simulate cov neeg siv khoom, kev tawm tswv yim / tso zis kuaj kom ntseeg tau tias nws qhov kev ua tau zoo raws li kev xav tau ntawm kev lag luam.

Peb yam khoom siv kuaj no muaj nyob rau hauv cov txheej txheem PCBA, thiab kev ntsuam xyuas PCBA hauv cov txheej txheem PCBA tuaj yeem ua kom ntseeg tau tias PCBA pawg thawj coj xa mus rau cov neeg siv khoom ua tau raws li cov neeg siv khoom tsim thiab txo tus nqi kho.