Okokuqala sizonaba ngesihloko sethu, okungukuthi, ibaluleke kangakanani idizayini ye-PCB enqubweni yesichibi se-SMT.Ngokuphathelene nokuqukethwe esikuhlaziyile ngaphambili, singathola ukuthi izinkinga eziningi zekhwalithi ku-SMT zihlobene ngokuqondile nezinkinga zenqubo yangaphambili.Kufana nje nomqondo “wendawo ye-deformation” esiyibeka phambili namuhla.
Lokhu okwenzelwe i-PCB ikakhulukazi.Inqobo nje uma indawo engezansi ye-PCB igobile noma ingalingani, i-PCB ingase igotshwe phakathi nenqubo yokufaka isikulufu.Uma izikulufu ezimbalwa ezilandelanayo zisatshalaliswa emugqeni noma eduze nendawo yocwaningo efanayo, i-PCB izogoba futhi yonakale ngenxa yesenzo esiphindaphindiwe sokucindezeleka phakathi nokuphathwa kwenqubo yokufaka isikulufu.Le ndawo egotshwe ngokuphindaphindiwe siyibiza ngokuthi indawo yokuguqulwa.
Uma ama-chip capacitor, ama-BGA, amamojula, nezinye izingxenye ezibucayi zokushintsha ukucindezeleka zifakwa endaweni yokuguqulwa phakathi nenqubo yokubeka, khona-ke i-solder joint ingase ingaqhekeki noma iphuke.
Ukuqhekeka kwejoyinti ye-module yokuhlinzeka amandla okuhlinzekwa kwe-solder kulesi simo kungokwalesi simo
(1) Gwema ukubeka izingxenye ezizwelayo ekucindezelekeni ezindaweni okulula ukugoba nokonakala phakathi nokuhlanganiswa kwe-PCB.
(2) Sebenzisa ithuluzi labakaki eliphansi phakathi nenqubo yokuhlanganisa ukuze wenze isicaba i-PCB lapho isikulufu sifakwe khona ukugwema ukugoba kwe-PCB ngesikhathi sokuhlanganisa.
(3) Ukuqinisa amalunga e-solder.
Isikhathi sokuthumela: May-28-2021
