Printed Circuit Boards (PCBs) ke karolo ea bohlokoa ea lisebelisoa tsa morao-rao tsa elektronike, tse sebetsang e le motheo oa likarolo tse etsang hore lisebelisoa tsena li sebetse. Li-PCB li na le thepa ea substrate, eo hangata e entsoeng ka fiberglass, e nang le litselana tse tsamaisang tse kentsoeng kapa tse hatisitsoeng holim'a metsi ho hokahanya likarolo tse fapaneng tsa elektroniki. Karolo e 'ngoe ea bohlokoa ea tlhahiso ea PCB ke plating, e bapalang karolo ea bohlokoa ho netefatsa ts'ebetso le ts'epahalo ea PCB. Sengoliloeng sena, re tla shebana le ts'ebetso ea ho roala ha PCB, bohlokoa ba eona, le mefuta e fapaneng ea plating e sebelisoang ho etsa PCB.
PCB Plating ke eng?
PCB plating ke mokhoa oa ho kenya tšepe e tšesaane holim'a karoloana ea PCB le litselana tsa conductive. Plating ena e sebeletsa merero e mengata, ho kenyelletsa le ho matlafatsa tsamaiso ea litsela, ho sireletsa bokaholimo ba koporo ho tsoa ho oxidation le corrosion, le ho fana ka bokaholimo bakeng sa ho kopanya likarolo tsa elektroniki holim'a boto. Ts'ebetso ea plating hangata e etsoa ho sebelisoa mekhoa e fapaneng ea electrochemical, joalo ka electroless plating kapa electroplating, ho fihlela botenya bo lakatsehang le thepa ea lera le pentiloeng.
Bohlokoa ba PCB Plating
Ho roala ha PCB ho bohlokoa ka mabaka a 'maloa. Ntlha ea pele, e ntlafatsa conductivity ea litsela tsa koporo, ho etsa bonnete ba hore matšoao a motlakase a ka phalla hantle pakeng tsa likarolo. Sena ke sa bohlokoa ka ho khetheha lits'ebetsong tsa maqhubu a phahameng le lebelo le holimo moo botšepehi ba matšoao bo leng bohlokoa. Ho feta moo, lera le petelitsoeng le sebetsa e le tšitiso khahlanong le maemo a tikoloho joalo ka mongobo le litšila, tse ka senyang ts'ebetso ea PCB ha nako e ntse e ea. Ho feta moo, plating e fana ka bokaholimo bakeng sa solder, e lumellang likarolo tsa elektronike hore li khomarele ka mokhoa o sireletsehileng botong, ho etsa likhokahano tsa motlakase tse tšepahalang.
Mefuta ea PCB Plating
Ho na le mefuta e 'maloa ea plating e sebelisoang tlhahiso ea PCB, e' ngoe le e 'ngoe e na le thepa ea eona e ikhethang le lits'ebetso. E meng ea mefuta e atileng haholo ea ho roala ha PCB e kenyelletsa:
1. Electroless Nickel Immersion Gold (ENIG): ENIG plating e sebelisoa haholo ho etsa PCB ka lebaka la ho hanyetsa ha eona ho hoholo le ho solderability. E na le lera le tšesaane la nickel e se nang motlakase e lateloang ke lera la khauta e qoelisoang, e fana ka sebaka se bataletseng le se boreleli bakeng sa ho soasoa ha se ntse se sireletsa koporo e ka tlase ho oxidation.
2. Khauta ea Electroplated: Ho roala khauta e entsoeng ka motlakase ho tsejoa ka mokhoa o ikhethang oa ho tsamaisa le ho hanyetsa ho senya, ho etsa hore e tšoanelehe bakeng sa likopo moo ho ts'epahalang ho phahameng le ho phela nako e telele ho hlokahalang. Hangata e sebelisoa ho lisebelisoa tsa elektronike tse phahameng le lisebelisoa tsa sefofane.
3. Electroplated Tin: Tin plating e atisa ho sebelisoa e le khetho e sebetsang hantle bakeng sa li-PCB. E fana ka solderability e ntle le ho hanyetsa kutu, ho etsa hore e tšoanelehe bakeng sa lits'ebetso tse akaretsang moo litšenyehelo e leng ntlha ea bohlokoa.
4. Electroplated Silver: Silver plating e fana ka conductivity e babatsehang 'me e atisa ho sebelisoa lits'ebetsong tse phahameng tsa maqhubu moo botšepehi ba pontšo bo leng bohlokoa. Leha ho le joalo, e na le tšekamelo ea ho silafatsoa haholo ha e bapisoa le ho rala khauta.
Mokhoa oa Plating
Ts'ebetso ea plating hangata e qala ka ho lokisoa ha karoloana ea PCB, e kenyelletsang ho hloekisa le ho kenya tšebetsong bokaholimo ho netefatsa ho khomarela hantle ha lera le petelitsoeng. Tabeng ea plating e se nang motlakase, ho hlapa ka lik'hemik'hale tse nang le tšepe ea plating ho sebelisoa ho beha lesela le tšesaane holim'a substrate ka karabelo ea catalytic. Ka lehlakoreng le leng, electroplating e kenyelletsa ho qoelisa PCB ka tharollo ea electrolyte le ho fetisa motlakase ho eona ho kenya tšepe holim'a eona.
Nakong ea ts'ebetso ea plating, ho bohlokoa ho laola botenya le ho ts'oana ha lera le pentiloeng ho fihlela litlhoko tse ikhethang tsa moralo oa PCB. Sena se fihlelleha ka taolo e nepahetseng ea liparamente tsa plating, joalo ka sebopeho sa tharollo ea plating, mocheso, letsoalo la hajoale le nako ea ho pola. Mehato ea taolo ea boleng, e kenyelletsang tekanyo ea botenya le liteko tsa ho khomarela, le tsona li etsoa ho netefatsa botšepehi ba lera le petelitsoeng.
Mathata le Litlhaloso
Le ha PCB plating e fana ka melemo e mengata, ho na le liphephetso le lintlha tse amanang le ts'ebetso ena. Phephetso e le 'ngoe e atileng ke ho fihlela botenya ba ho pola e tšoanang ho PCB eohle, haholo meralong e rarahaneng e nang le likarolo tse fapaneng. Mehaho e nepahetseng ea moralo, joalo ka ts'ebeliso ea limaske tsa plating le mesaletsa e laoloang ea impedance, e bohlokoa ho etsa bonnete ba ho roala ka mokhoa o ts'oanang le ts'ebetso e ts'oanang ea motlakase.
Mehopolo ea tikoloho le eona e na le karolo e kholo ho PCB plating, kaha lik'hemik'hale le litšila tse hlahisoang nakong ea ho rala li ka ba le litlamorao tsa tikoloho. Ka lebaka leo, bahlahisi ba bangata ba PCB ba sebelisa mekhoa le lisebelisoa tsa ho rala tse baballang tikoloho ho fokotsa tšusumetso tikolohong.
Ho feta moo, khetho ea thepa ea ho plating le botenya e tlameha ho lumellana le litlhoko tse khethehileng tsa kopo ea PCB. Mohlala, li-circuits tsa dijithale tse lebelo le holimo li ka hloka plating e matla ho fokotsa tahlehelo ea mats'oao, athe li-circuits tsa RF le microwave li ka rua molemo ho lisebelisoa tse ikhethileng tsa ho boloka botsitso ba matšoao maemong a holimo.
Mekhoa ea Bokamoso ho PCB Plating
Ha thekenoloji e ntse e tsoela pele, sebaka sa PCB plating le sona se ntse se tsoela pele ho fihlela litlhoko tsa lisebelisoa tsa elektroniki tsa moloko o latelang. Mokhoa o mong o hlokomelehang ke nts'etsopele ea lisebelisoa le lits'ebetso tse tsoetseng pele tse fanang ka ts'ebetso e ntlafalitsoeng, ts'epahalo le ts'ireletso ea tikoloho. Sena se kenyelletsa ho lekoa ha litšepe tse ling le lithapo tsa bokaholimo ho rarolla bothata bo ntseng bo hola le ho etsa lintho tse nyane tsa likarolo tsa elektroniki.
Ho feta moo, kopanyo ea mekhoa e tsoetseng pele ea ho pola, joalo ka pulse le reverse pulse plating, e ntse e eketseha ho fihlela boholo ba likarolo tse ntle le likarolo tse phahameng tsa meralo ea PCB. Mekhoa ena e etsa hore ho be le taolo e nepahetseng holim'a ts'ebetso ea ho pola, e bakang ts'ebetso e ts'oanang le ho tsitsisa ho pholletsa le PCB.
Qetellong, PCB plating ke karolo ea bohlokoa ea tlhahiso ea PCB, e bapala karolo ea bohlokoa ho netefatsa ts'ebetso, ts'epahalo le ts'ebetso ea lisebelisoa tsa elektroniki. Ts'ebetso ea plating, hammoho le khetho ea lisebelisoa le mekhoa ea ho rala, e ama ka kotloloho thepa ea motlakase le mochini oa PCB. Ha thekenoloji e ntse e tsoela pele, nts'etsopele ea tharollo ea mapolanka e tla ba ea bohlokoa ho fihlela litlhoko tse ntseng li tsoela pele tsa indasteri ea lisebelisoa tsa elektroniki, ho tsamaisa tsoelo-pele e tsoelang pele le boqapi ba tlhahiso ea PCB.
T: PCB Plating: Ho utloisisa Ts'ebetso le Bohlokoa ba eona
D: Li-Printed Circuit Boards (PCBs) ke karolo ea bohlokoa ea lisebelisoa tsa elektronike tsa morao-rao, tse sebetsang e le motheo oa likarolo tse etsang hore lisebelisoa tsena li sebetse. Li-PCB li na le thepa ea substrate, eo hangata e entsoeng ka fiberglass, e nang le litselana tse tsamaisang tse kentsoeng kapa tse hatisitsoeng holim'a metsi ho hokahanya likarolo tse fapaneng tsa elektroniki.
K: pcb plating
Nako ea poso: Aug-01-2024
