1. Zafafan iska mai zafi da ake amfani da shi a saman PCB narkakkar tin gubar solder da dumama matakan daidaita iska (busa lebur). Yin shi ya samar da abin rufe fuska mai juriya na iskar shaka zai iya samar da kyakkyawan weldability. Solder ɗin iska mai zafi da tagulla suna samar da fili na jan karfe-sikkim a mahadar, tare da kauri kusan mil 1 zuwa 2.
2. Organic Solderability Preservative (OSP) ta hanyar samar da sinadarai a jikin tagulla maras tsabta. Wannan fim ɗin multilayer na PCB yana da ikon yin tsayayya da iskar shaka, girgiza zafi, da danshi don kare saman jan ƙarfe daga tsatsa (haɓaka ko sulfurization, da dai sauransu) a ƙarƙashin yanayin al'ada. A lokaci guda, a yanayin zafin walda na gaba, ana cire walda mai sauƙi da sauri.

3. Ni-au sinadarai mai rufi tagulla surface tare da kauri, mai kyau ni-au gami lantarki Properties don kare PCB multilayer jirgin. Na dogon lokaci, ba kamar OSP ba, wanda kawai ake amfani da shi azaman tsatsa mai tsatsa, ana iya amfani dashi don dogon lokaci na amfani da PCB kuma samun iko mai kyau. Bugu da ƙari, yana da juriya na muhalli wanda sauran hanyoyin jiyya na saman ba su da.

4. Electroless azurfa ajiya tsakanin OSP da electroless nickel / zinariya plating, PCB multilayer tsari ne mai sauki da kuma sauri.

Fuskantar yanayi mai zafi, ɗanɗano da gurɓataccen yanayi har yanzu yana ba da kyakkyawan aikin lantarki da kyakyawar walda, amma ɓatacce. Saboda babu nickel a ƙarƙashin Layer na azurfa, azurfar da aka haɗe ba ta da duk kyakkyawan ƙarfin jiki na nickel plating / nutsewar zinari mara amfani.

5.Mai gudanarwa a saman PCB multilayer board an yi shi da zinare na nickel, na farko tare da Layer na nickel sannan kuma tare da zinari na zinariya. Babban manufar nickel plating shine don hana yaduwa tsakanin zinariya da jan karfe. Akwai nau'i biyu na zinariya da aka yi da nickel: zinariya mai laushi (zinari mai tsabta, wanda ke nufin ba shi da haske) da zinariya mai wuya (mai laushi, mai wuya, mai jurewa, cobalt da sauran abubuwa masu haske). M zinariya ne yafi amfani da guntu marufi zinariya line; Ana amfani da gwal mai wuya sosai don haɗin haɗin lantarki mara walda.

6. PCB gauraye surface jiyya fasaha zabi biyu ko fiye hanyoyin da surface jiyya, na kowa hanyoyin su ne: nickel zinariya anti-oxidation, nickel plating zinariya hazo nickel zinariya, nickel plating zinariya zafi iska matakin, nauyi nickel da zinariya zafi iska matakin. Ko da yake canji a cikin tsarin jiyya na multilayer na PCB ba shi da mahimmanci kuma yana da alama mai nisa, ya kamata a lura cewa dogon lokaci na jinkirin canji zai haifar da babban canji. Tare da karuwar buƙatar kariyar muhalli, fasahar jiyya ta PCB na iya canzawa sosai a nan gaba.