Ngokwenkqubo, i-stencil ye-pcb inokwahlulwa ngokwezi ndidi zilandelayo:
1. I-stencil yokuncamathelisa ye-Solder: Njengoko igama libonisa, isetyenziselwa ukubrasha intlama ye-solder.Ukukrola imingxuma kwisiqwenga sentsimbi esihambelana neepads zebhodi ye-pcb.Emva koko sebenzisa uncamathiselo lwe-solder ukwenza i-pad kwibhodi ye-PCB ngokusebenzisa i-stencil.Xa uprinta intlama ye-solder, sebenzisa i-solder paste phezulu kwi-stencil, ngelixa ibhodi yesekethe ibekwe phantsi kwe-stencil, kwaye usebenzise i-scraper ukukrazula i-solder paste ngokulinganayo kwimingxuma ye-stencil (i-solder paste iya kucudiswa ukusuka umnatha wentsimbi wehla ngomnatha kwaye ugqume ibhodi yesekethe).Namathisela amacandelo e-SMD, kunye ne-reflow soldering inokwenziwa ngokufanayo, kwaye i-plug-in components zithengiswa ngesandla.
2. I-stencil yeplastiki ebomvu: Ukuvulwa kuvulwa phakathi kweepadi ezimbini zecandelo ngokobukhulu kunye nohlobo lwenxalenye.Sebenzisa i-dipensing (i-dispensing kukusebenzisa umoya ocinezelweyo ukukhomba iglu ebomvu kwi-substrate ngentloko ekhethekileyo yokukhupha) ukukhomba iglu ebomvu kwibhodi ye-PCB ngokusebenzisa i-mesh yensimbi.Emva koko phawula amacandelo, kwaye emva kokuba amacandelo ancanyathiselwe ngokuqinileyo kwi-PCB, iplagi kwiikhomponenti zeplagi kwaye ugqithise i-soldering wave kunye.
3. Istencil yenkqubo ephindwe kabini: Xa iPCB ifuna ukuxutywa nge-solder paste kunye neglue ebomvu, emva koko kufuneka kusetyenziswe i-stencil yenkqubo ezimbini.Istencil yenkqubo ezimbini yenziwe ngeestencil ezimbini, istensile yelaser eqhelekileyo kunye nestencil ene stepped.Indlela yokuqonda ukuba usebenzisa i-stencil ene-steped okanye iglue ebomvu kwi-solder paste?Okokuqala qonda ukuba uhlambe i-solder paste okanye iglue ebomvu kuqala.Ukuba i-solder paste isetyenziswe kuqala, ke i-solder paste stencil yenziwe kwi-stencil ye-laser eqhelekileyo, kwaye i-stencil yeglue ebomvu yenziwe kwi-stencil ene-steped.Ukuba i-glue ebomvu isetyenziswe kuqala, ngoko i-stencil ebomvu yeglue yenziwe kwi-stencil ye-laser eqhelekileyo, kwaye i-solder pastencil yenziwe kwi-stencil enyathelweyo.