Sonke siyalazi ibhodi lesifunda eliphrintiwe, kodwa ingabe uyazi ukuthi iyini i-PCB yethusi esindayo? I-Best Tech ingumqambi we-PCB yethusi esindayo kakhulu esindayo kusukela ngonyaka ka-2006. I-Heavy Copper PCB iwuhlobo lwebhodi lesifunda eliphrintiwe elifaka izendlalelo zethusi ezijiyile kunama-FR4 PCB ajwayelekile. Nakuba ama-PCB avamile enogqinsi lwethusi olusukela ku-1 ukuya ku-3 wamaounces (unyawo lwesikwele ngasinye), ama-PCB ethusi esindayo anogqinsi lwethusi oludlula ama-ounces angu-3 futhi angakhuphukela kuma-ounces angu-20 noma ngaphezulu. Lezi zendlalelo zethusi zivame ukutholakala kuzingqimba zangaphakathi nezingaphandle ze-PCB, ithusi elisindayo elinikeza amandla okuthwala amanje athuthukisiwe kanye nekhono elithuthukisiwe lokulahla ukushisa.