Dukanmu mun san cewa, don samun PCB mai kyau conductivity, jan karfe a kan PCB yafi electrolytic jan karfe ne, da kuma tagulla solder gidajen abinci a cikin iska daukan lokaci mai tsawo da sauki a zama oxidised, wanda. zai haifar da matalauta watsin ko matalauta lamba, rage yi na PCB, don haka muna bukatar mu yi surface jiyya ga jan karfe solder gidajen abinci. Zinariya na nutsewa yana sanya zinari a kai, zinari na iya yin tasiri yadda ya kamata tsakanin karfen jan karfe da iska don hana iskar shaka, don haka zinare na nutsewa shine maganin daskarewa da iskar shaka, ta hanyar sinadari ne a saman fuskar tagulla da aka rufe. tare da siriri na zinariya, wanda ake kira immersion zinariya.