1. A na-etinye ọkwa ikuku na-ekpo ọkụ n'elu PCB gbazere gbam gbam gbam gbam gbam gbam gbam gbam gbam gbam ekpo ọkụ usoro (ịfụ flat). Ime ka ọ bụrụ mkpuchi na-eguzogide oxidation nwere ike inye ezigbo weldability. Ihe ire ere ikuku na-ekpo ọkụ na ọla kọpa na-etolite ogige ọla kọpa-sikkim na njikọ ahụ, nwere ọkpụrụkpụ nke ihe dịka 1 ruo 2mil.
2. Organic Solderability Preservative (OSP) site na kemịkalụ itolite ihe mkpuchi organic na ọla kọpa na-adịghị ọcha. Ihe nkiri multilayer PCB a nwere ikike iguzogide oxidation, ujo okpomọkụ, na mmiri iji chebe elu ọla kọpa site na nchara (oxidation ma ọ bụ sulfurization, wdg) n'okpuru ọnọdụ nkịtị. N'otu oge ahụ, na okpomọkụ ịgbado ọkụ na-esote, a na-ewepụ ọkụ ọkụ ngwa ngwa ngwa ngwa.

3. Ni-au chemical ntekwasa ọla kọpa elu na oké, ezi ni-au alloy eletriki Njirimara iji chebe PCB multilayer osisi. Ruo ogologo oge, n'adịghị ka OSP, nke a na-eji naanị dịka oyi akwa nchara, enwere ike iji ya maka PCB ogologo oge ma nweta ike dị mma. Na mgbakwunye, ọ nwere nnabata gburugburu ebe obibi nke usoro ọgwụgwọ elu ndị ọzọ enweghị.

4. Electroless silver deposition n'etiti OSP na electroless nickel / gold plating, PCB multilayer usoro dị mfe na ngwa ngwa.

Ngosipụta na gburugburu ebe dị ọkụ, iru mmiri na mmetọ ka na-enye ọrụ eletrik dị mma yana ezigbo weldability, mana ọ na-emebi emebi. N'ihi na ọ dịghị nickel n'okpuru ọlaọcha oyi akwa, na precipitate silver enweghị niile ezi ike anụ ahụ nke electroless nickel plating / gold imikpu.

5.Onye na-eduzi n'elu PCB multilayer board na-etinye ya na ọla edo nickel, nke mbụ na-eji akwa nickel na mgbe ahụ na-eji ọla edo edo edo. Ebumnuche bụ isi nke nickel plating bụ igbochi mgbasa n'etiti ọla edo na ọla kọpa. E nwere ụdị ọla edo abụọ nke nickel: ọla edo dị nro (ọlaedo dị ọcha, nke pụtara na ọ naghị ele anya) na ọla edo siri ike (dị nro, siri ike, na-eguzogide ọgwụ, cobalt na ihe ndị ọzọ na-egbuke egbuke). A na-ejikarị ọla edo dị nro mee ihe maka mgbawa nkwakọ ngwaahịa ọla edo; A na-ejikarị ọla edo siri ike maka njikọ eletrik anaghị agbado.

6. PCB agwakọta elu ọgwụgwọ technology họrọ abụọ ma ọ bụ karịa ụzọ maka elu ọgwụgwọ, nkịtị ụzọ ndị: nickel gold mgbochi ọxịdashọn, nickel plating gold ọdịda nickel gold, nickel plating gold okpomọkụ ikuku larịị, arọ nickel na gold na-ekpo ọkụ ikuku larịị. Ọ bụ ezie na mgbanwe na PCB multilayer n'elu usoro ọgwụgwọ adịghị mkpa ma yie ka ọ dị anya, ekwesịrị ịmara na ogologo oge nke mgbanwe nwayọọ nwayọọ ga-eduga ná nnukwu mgbanwe. Site na mmụba na-achọ maka nchekwa gburugburu ebe obibi, teknụzụ ọgwụgwọ elu nke PCB ga-agbanwe nke ukwuu n'ọdịnihu.