PCB mbadamba electro-gold obtains gold through electrolysis, while chemical gold obtains gold through chemical reduction reaction!

Simply put, PCB electroplating gold, like other PCB electroplating, requires power and a rectifier. There are many kinds of processes, including cyanide-containing, non-cyanide systems, and non-cyanide systems, such as citric acid type and sulfite type. All non-cyanide systems are used in the PCB industry.

Ọla edo kemịkalụ (electroless gold plating) adịghị mkpa ka a na-enye ume, ọ na-etinye ọla edo na bọọdụ site na mmeghachi omume kemịkalụ na ngwọta.

Ha nwere uru na ọghọm nke ha. Na mgbakwunye na ike-na ma ọ bụghị ike-na, PCB osisi nwere ike na-eme ka ọ dị oké, ma ọ bụrụhaala na oge na-agbatị, ọ dabara maka bonding mbadamba. Ohere nke a ga-atụfu PCB n’ichepụta ọgwụ ọla edo pere mpe karịa nke ọla edo kemịkal. Agbanyeghị, PCB eletriki ọla edo kwesịrị ijikọ ya na bọọdụ ahụ niile, ọ naghị adabara ahịrị ndị dị gịrịgịrị.

Ọlaedo kemịkalụ n’ozuzu dị gịrịgịrị (ihe na-erughị 0.2 microns), ịdị ọcha nke ọla edo dị ala. Enwere ike ịtụfu mmiri mmiri na-arụ ọrụ naanị mgbe ejiri ya ruo n’ókè ụfọdụ.

Otu bụ PCB electroplating ka ọ bụrụ ọla edo nickel

Otu bụ ojiji nke sodium hypophosphite nke onwe oxidation-mbelata mmeghachi omume na-etolite nickel oyi akwa, na a nnọchi mmeghachi omume na-etolite ọla edo (Uemura’s (TSB71 bụ na onwe-ebelata gold)), nke bụ a chemical usoro.

Ivy: Na mgbakwunye na usoro dị iche n’etiti PCB electroplating na immersion gold, e nwere ndị na-esonụ iche:

PCB electroplating gold oyi akwa bụ thicker na ike, n’ihi ya, ọ na-ejikarị maka ugboro ugboro plugging na ntinye sliding akụkụ, dị ka mkpịsị aka ọla edo nke mgba ọkụ kaadị;

Ọlaedo imikpu dị mma maka ịrịgo n’ihi oghere dị larịị nke pad ahụ, a na-ejikwa ya maka ire ere na-enweghị ndu.