Ukushintsha kwezinga lokushisa okusebenzayo kungaba nomthelela omkhulu ekusebenzeni, ukuthembeka, impilo yonke kanye nekhwalithi yemikhiqizo. Izinga lokushisa likhuphuka liphumela ekukhuleni kokubalulekile, nokho, izinto ezisetshenziswayo ze-substrate i-PCB enziwe ngazo zinama-coefficients ahlukene wokunweba okushisayo, lokhu kubangela ingcindezi yokukhanda engadala ama-micro-crack angase angabonakali ngesikhathi sokuhlolwa kukagesi okwenziwa ekupheleni kokukhiqiza.