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Fọrọ nke nta niilePCBs na okpukpu abụọ ma ọ bụ multi-layers na-eji plated site na oghere (PTH) iji jikọọ ndị na-eduzi n'etiti ọkwa dị n'ime ma ọ bụ oyi akwa, ma ọ bụ iji jide ihe ndị na-eduzi wires.Iji mezuo nke ahụ, ọ dị mkpa ijikọ ụzọ dị mma maka nke ugbu a na-asọba na oghere.Otú ọ dị, tupu plating usoro, site oghere bụ ndị na-adịghị eduzi n'ihi na e biri ebi sekit mbadamba na-emi esịnede na-abụghị conductive mejupụtara mkpụrụ ihe (epoxy-glass, phenolic-akwụkwọ, polyester-glass, wdg).Iji mepụta conduciveness ọ bụ ezie na oghere ụzọ, banyere 25 microns (1 mil ma ọ bụ 0.001 in.) nke ọla kọpa ma ọ bụ karịa kpọmkwem site sekit osisi mmebe na-achọrọ edebe electrolytically na mgbidi nke oghere ka ike zuru ezu njikọ.

Tupu electrolytical ọla kọpa plating, nzọụkwụ mbụ bụ chemical ọla kọpa plating, nke a na-akpọ electroless ọla kọpa deposition, nweta mbụ conductive oyi akwa na mgbidi nke oghere nke e biri ebi wiring mbadamba.Mmeghachi omume mbelata oxidation autocatalytic na-eme n'elu mkpụrụ nke anaghị eduzi site na oghere.N'elu mgbidi ahụ, a na-etinye kemịkalụ uwe mkpuchi ọla kọpa dị ihe dị ka 1-3 micrometer.Ebumnobi ya bụ ime ka oghere dị n'elu na-eduzi nke ọma iji mee ka e nwekwuo ọla kọpa na-edobe electrolytically na ọkpụrụkpụ nke onye nrụpụta bọọdụ kwuru.E wezụga ọla kọpa, anyị nwere ike iji palladium, graphite, polymer, wdg dị ka ndị nduzi.Ma ọla kọpa bụ nhọrọ kacha mma maka onye nrụpụta eletrọnịkị na oge nkịtị.

Dị ka IPC-2221A table 4.2 na-ekwu na opekempe ọla kọpa ọkpụrụkpụ nke a na-etinye site na electroless ọla kọpa plating usoro na mgbidi nke PTH maka nkezi ọla kọpa ntinye bụ 0.79 mil maka klas Ⅰ na Class Ⅱ na 0.98 mil maka.klasⅢ.

A na-ejikwa kọmpụta n'ụzọ zuru ezu ahịrị nkwụnye ego ọla kọpa nke kemịkal, a na-ebukwa akụkụ ndị ahụ site na usoro kemịkalụ na ịsacha bath site na kreen n'elu.Na mbụ, a na-emezi akụkụ pcb ahụ, na-ewepụ ihe niile fọdụrụnụ site na mkpọpu mmiri ma na-enye ezigbo ihe siri ike na ịdị mma electro maka ntinye kemịkalụ nke ọla kọpa.Nzọụkwụ dị mkpa bụ usoro desmear permanganate nke oghere.N'oge usoro ọgwụgwọ, a na-ewepụ akwa akwa epoxy resin site na nsọtụ nke oyi akwa dị n'ime na mgbidi nke oghere, iji hụ na adhesion.Mgbe ahụ, a na-emikpu mgbidi oghere niile n'ime ebe ịsa ahụ na-arụ ọrụ iji nweta mkpụrụ nke nwere obere akụkụ nke palladium n'ime ebe ịsa ahụ na-arụ ọrụ.A na-edobe bat ahụ n'okpuru mgbakasị ikuku nkịtị na ogwe ndị ahụ na-agagharị mgbe niile site na bat ahụ iji wepụ ikuku ikuku nwere ike ịmalite n'ime oghere.Otu obere oyi akwa nke ọla kọpa na-edobere n'elu akụkụ dum nke panel ahụ wee gwuo oghere mgbe palladium sachara ya.Igwe ọkụ eletrik na-eji palladium eme ihe na-enye nkwado kachasị ike nke mkpuchi ọla kọpa na fiberglass.Na njedebe a na-eme nyocha iji lelee porosity na ọkpụrụkpụ uwe mkpuchi ọla kọpa.

Nzọụkwụ ọ bụla dị oke mkpa maka usoro n'ozuzu ya.Mmejọ ọ bụla na usoro a nwere ike ime ka ogbe PCB dum mebie.Na njedebe ikpeazụ nke pcb dị na usoro ndị ahụ a kpọtụrụ aha ebe a.

Ugbu a, na oghere conductive, eletriki njikọ n'etiti ime n'ígwé na si n'ígwé guzosie ike maka sekit mbadamba.Nzọụkwụ ọzọ bụ ịmalite ọla kọpa n'ime oghere ndị ahụ na elu na elu ala nke mbadamba wiring ruo kpọmkwem ọkpụrụkpụ - ọla kọpa electroplating.

Ahịrị mkpuchi ọla kọpa na-akpaghị aka na-akpaghị aka na PCB ShinTech nwere teknụzụ ịkpụcha ihu PTH.

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