Kwinkqubo yokwenziwa kwetshiphu ye-SMT,intambo emfutshaneyinto eqhelekileyo kakhulu engalunganga yokucubungula. Ibhodi yesekethe ye-PCBA ejikelezayo emfutshane ayinakusetyenziswa ngokuqhelekileyo. Oku kulandelayo yindlela yokuhlola eqhelekileyo yesekethe emfutshane yebhodi yePCBA.

1. Kucetyiswa ukuba usebenzise i-short circuit positioning analyzer ukujonga imeko embi.

2. Kwimeko yobuninzi beesekethe ezimfutshane, kucetyiswa ukuba uthathe ibhodi yesekethe ukusika iingcingo, kwaye emva koko amandla kwindawo nganye ukujonga iindawo ngeesekethe ezimfutshane nganye nganye.

3. Kucetyiswa ukuba usebenzise i-multimeter ukujonga ukuba isekethe ephambili imfutshane. Ngalo lonke ixesha i-patch ye-SMT igqityiwe, i-IC kufuneka isebenzise i-multimeter ukuze ibone ukuba umbane kunye nomhlaba ujikeleza ngokukhawuleza.

4. Khanyisa i-short circuit network kwi-diagram ye-PCB, khangela indawo kwibhodi yesekethe apho isiphaluka esifutshane sinokwenzeka kakhulu, kwaye uqaphele ukuba kukho isiphaluka esifutshane ngaphakathi kwe-IC.

5. Qinisekisa ukuba udibanise ngononophelo loo macandelo amancinci e-capacitive, ngaphandle koko isiphaluka esifutshane phakathi kokunikezelwa kwamandla kunye nomhlaba kunokwenzeka kakhulu ukuba kwenzeke.

6. Ukuba kukho i-chip ye-BGA, kuba ininzi ye-solder joints ihlanganiswe yi-chip kwaye ayilula ukuyibona, kwaye ibhodi yesekethe ye-multilayer, kuyacetyiswa ukuba unqumle ukunikezelwa kwamandla kwi-chip nganye kwinkqubo yoyilo. , kwaye udibanise kunye namaso amagnetic okanye i-0 ohm resistance. Kwimeko yesekethe emfutshane, ukuqhawula ukubhaqwa kwentsimbi yemagnethi kuya kwenza kube lula ukufumana itshiphu kwibhodi yesekethe.