SMT kev ua haujlwmyog cov txheej txheem txheej txheem rau kev ua haujlwm raws li PCB. Nws muaj qhov zoo ntawm qhov siab mounting raug thiab ceev ceev, yog li nws tau txais los ntawm ntau lub tuam txhab hluav taws xob. SMT nti ua cov txheej txheem feem ntau suav nrog kev tshuaj ntsuam silk lossis kua nplaum, mounting lossis curing, reflow soldering, tu, kuaj, rework, thiab lwm yam. Ntau cov txheej txheem yog ua raws li cov txheej txheem ua tiav tag nrho cov txheej txheem nti.
1.Screen printing
Cov khoom siv pem hauv ntej uas nyob hauv SMT cov kab ntau lawm yog lub tshuab luam ntawv tshuaj ntsuam, uas nws lub luag haujlwm tseem ceeb yog luam tawm cov tshuaj nplaum los yog cov nplaum nplaum rau hauv cov ntaub qhwv ntawm PCB los npaj rau cov khoom sib txuas.
2. Kev faib tawm
Cov khoom siv nyob rau hauv pem hauv ntej kawg ntawm SMT cov kab ntau lawm los yog tom qab lub tshuab kuaj xyuas yog cov kua nplaum nplaum. Nws lub luag haujlwm tseem ceeb yog tso kua nplaum rau ntawm qhov chaw ruaj khov ntawm PCB, thiab lub hom phiaj yog kho cov khoom ntawm PCB.
3. Kev tso chaw
Cov khoom siv tom qab lub tshuab luam ntawv silk screen hauv SMT cov kab ntau lawm yog lub tshuab tso rau, uas yog siv los ua kom raug mount nto mount Cheebtsam rau qhov chaw ruaj khov ntawm PCB.
4. Kev kho
Cov khoom siv tom qab lub tshuab tso rau hauv SMT cov kab ntau lawm yog lub qhov cub ua kom sov, nws lub luag haujlwm tseem ceeb yog kom yaj cov kua nplaum tso rau hauv qhov chaw, kom cov khoom siv saum npoo av thiab lub rooj tsav xwm PCB tau ruaj khov ua ke.
5. Reflow soldering
Cov khoom siv tom qab lub tshuab tso rau hauv SMT cov kab ntau lawm yog lub qhov cub reflow, uas nws lub luag haujlwm tseem ceeb yog yaj cov tshuaj nplaum kom cov khoom siv saum npoo av thiab cov PCB pawg thawj coj tau ruaj khov ua ke.
6. Kev kuaj xyuas
Txhawm rau kom ntseeg tau tias cov khoom zoo thiab kev sib dhos zoo ntawm lub rooj sib dhos PCB ua tau raws li lub Hoobkas yuav tsum tau ua, tsom iav tsom iav, tsom iav tsom iav, hauv-circuit testers (ICT), ya soj ntsuam kuaj, tsis siv neeg kho qhov muag tshuaj ntsuam (AOI), X-RAY tshuaj xyuas tshuab thiab lwm yam khoom siv yuav tsum tau. Lub luag haujlwm tseem ceeb yog txhawm rau txheeb xyuas seb lub rooj tsav xwm PCB puas muaj qhov tsis xws luag xws li cov khoom siv hluav taws xob, tsis muaj vuam, thiab tawg.
7. Kev ntxuav
Tej zaum yuav muaj cov khoom seem uas tsim kev puas tsuaj rau tib neeg lub cev xws li flux ntawm lub rooj sib dhos PCB, uas yuav tsum tau ntxuav nrog lub tshuab ntxuav.
