PCB boto 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.

Khauta ea lik’hemik’hale (khauta e se nang motlakase) ha e hloke ho matlafatsoa, ​​​​e kenya khauta holim’a boto ka karabelo ea lik’hemik’hale ka tharollo.

Ba na le melemo le mathata a bona. Ntle le matla a ho sebetsa empa e se matla, boto ea PCB e ka etsoa e teteaneng haholo, ha feela nako e ntse e atolosoa, e loketse liboto tsa bonding. Monyetla oa hore PCB e etse potion ea electro-gold e lahliloe o monyane ho feta oa khauta ea lik’hemik’hale. Leha ho le joalo, khauta ea motlakase ea PCB e hloka ho hokahanngoa le boto kaofela, ‘me ha e tšoanelehe bakeng sa mela e tšesaane haholo-holo.

Khauta ea lik’hemik’hale hangata e tšesaane haholo (ka tlase ho 0.2 microns), ‘me bohloeki ba khauta bo tlase. Mokelikeli o sebetsang o ka lahloa feela ha o sebelisoa ho isa bohōleng bo itseng.

E ‘ngoe ke PCB electroplating ho etsa khauta ea nickel

E ‘ngoe ke ts’ebeliso ea sodium hypophosphite’s “oxidation-foduction reaction” ho etsa lesela la nickel, le karabelo ea sebaka sa ho etsa lesela la khauta (Uemura’s (TSB71 e nang le khauta e inyenyefatsang)), e leng mokhoa oa lik’hemik’hale.

Ivy: Ntle le liphapang tsa ts’ebetso lipakeng tsa PCB electroplating le khauta e qoelisoang, ho na le liphapang tse latelang:

PCB electroplating khauta layer ke e motenya le ho feta, kahoo hangata e sebelisoa bakeng sa ho plug hangata le ho kenya likarolo tse thellang, joalo ka menoana ea khauta ea likarete tsa switch;

Khauta e qoelisoang e ntle bakeng sa ho hlongoa ka lebaka la bokaholimo bo bataletseng ba pad mme e boetse e sebelisoa bakeng sa solder e se nang loto.