MuPCBkusonkhanitsa ndi kugulitsa, opanga ma SMT chip processing ali ndi antchito ambiri kapena makasitomala omwe akugwira nawo ntchito, monga kuyika plug-in, kuyesa kwa ICT, kupatukana kwa PCB, ma PCB soldering operations, screw mounting, rivet mounting, crimp connector manual pressing, PCB njinga, etc., ntchito yofala kwambiri ndi munthu m'modzi akutola bolodi ndi dzanja limodzi, chomwe ndi chinthu chachikulu pakulephera kwa BGA ndi chip capacitors. Nanga n’cifukwa ciani izi zikuyambitsa vuto? Lolani mkonzi wathu akufotokozereni lero!

Zowopsa za kugwiraPCBbolodi ndi dzanja limodzi:

(1) Kugwira bolodi la PCB ndi dzanja limodzi kumaloledwa kwa matabwa ozungulira omwe ali ndi kukula kwazing'ono, kulemera kwake, palibe BGA komanso mphamvu ya chip; koma kwa mabwalo omwe ali ndi kukula kwakukulu, kulemera kwakukulu, BGA ndi ma chip capacitors pama board am'mbali, omwe ayenera kupewedwa. Chifukwa machitidwe amtunduwu amatha kupangitsa kuti ma solder a BGA, chip capacitance komanso kukana kwa chip kulephera. Choncho, muzolemba za ndondomekoyi, zofunikira za momwe mungatengere bolodi la dera ziyenera kuwonetsedwa.

Chosavuta chogwira PCB ndi dzanja limodzi ndi njira yozungulira bwalo. Kaya akuchotsa bolodi pa lamba wonyamula katundu kapena kuyika bolodi, anthu ambiri mosazindikira amakhala ndi chizolowezi chogwira PCB ndi dzanja limodzi chifukwa ndi yabwino kwambiri. Pamene mukuwotchera pamanja, ikani radiator ndikuyika zomangira. Kuti mumalize ntchitoyi, mwachibadwa mudzagwiritsa ntchito dzanja limodzi kuti mugwiritse ntchito zinthu zina pa bolodi. Ntchito zomwe zimawoneka ngati zabwinobwino nthawi zambiri zimabisa zoopsa zazikulu.

(2) Ikani zomangira. M'mafakitale ambiri a SMT chip processing, kuti apulumutse ndalama, zida sizimachotsedwa. Pamene zomangira anaika pa PCBA, zigawo zikuluzikulu kumbuyo kwa PCBA nthawi zambiri opunduka chifukwa cha kusagwirizana, ndipo n'zosavuta osokoneza kupsinjika-tcheru solder mfundo.

(3) Kulowetsa zida zapabowo

Kupyolera mu dzenje zigawo, makamaka thiransifoma ndi mayendedwe wandiweyani, nthawi zambiri zovuta amaika molondola mu mabowo okwera chifukwa chachikulu malo kulolerana kutsogolera. Othandizira sangayesere kupeza njira yolondola, nthawi zambiri amagwiritsa ntchito makina osindikizira okhwima, omwe amachititsa kupindika ndi kusinthika kwa bolodi la PCB, komanso kuwononga ma capacitors a chip, resistors, ndi BGA.