4 Layer ENIG PCB 8329

1. Sarrafa rabin rami sau biyu na nau'in wuka.

2. A cikin rami na biyu, an ƙara ramin jagora a gefen ramin, an cire fatar jan ƙarfe a gaba, kuma an rage burar. Ana amfani da tsagi don hakowa don inganta saurin fadowa.

3. Copper plating a kan substrate, sab thatda haka, wani Layer na jan karfe plating a kan rami bango na zagaye rami a gefen farantin.

4. Wurin waje ana yin shi ta hanyar fim na matsawa, fallasawa da haɓaka substrate bi da bi, sannan kuma an ɗora substrate da jan ƙarfe da kwano sau biyu, don haka murfin jan ƙarfe akan bangon rami na ramin zagaye a gefen gefen farantin yana da kauri kuma an rufe murfin jan ƙarfe da kwano na tin tare da tasirin lalata;

5. Rabin rami kafa farantin gefen zagaye rami yanke a cikin rabi don samar da rabin rami;

6. Cire fim ɗin zai cire fim ɗin anti-plating da aka matse a yayin danna fim;

7. Gyara matattarar, kuma cire jan ƙarfe da aka fallasa a saman Layer na substrate bayan cire fim;

Fushin Tin Ana murƙushe murfin don a cire tin ɗin daga bangon da ya ragargaje kuma furen jan ƙarfe akan bangon mai rami.

8. Bayan gyare -gyaren, yi amfani da jan tef don manna faranti ɗaya tare, da kan layin alkaline don cire burrs

9. Bayan farantin tagulla na biyu da kwanon rufi a kan farantin, an yanke ramin madauwari a gefen farantin don yin ramin rabin. Saboda murfin jan ƙarfe na bangon rami an rufe shi da kwanon rufi, kuma murfin jan ƙarfe na bangon ramin yana da alaƙa gaba ɗaya tare da murfin jan ƙarfe na murfin waje na substrate, kuma ƙarfin ɗaurin yana da girma, jan ƙarfe akan ramin za a iya guje wa bango yadda yakamata lokacin yankewa, kamar cirewa ko sabon abu na jan ƙarfe;

10. Bayan kammala ramin rami na rami sannan a cire fim ɗin, sannan etch, jan ƙarfe na jan ƙarfe ba zai faru ba, yadda yakamata a guji faruwar ragowar jan ƙarfe har ma da ɗan gajeren zango, inganta yawan amfanin ƙasa na PCB