Thepa ea motheo ea boto ea potoloho ea fektheri ea electro-acoustic PCB e na le foil ea koporo feela ka mahlakoreng ka bobeli, 'me bohareng ke lera le sireletsang, kahoo ha ho hlokahale hore e be conductive pakeng tsa mahlakoreng a mabeli kapa lipotoloho tse ngata-ngata ea boto ea potoloho?Mehala e mahlakoreng ka bobeli e ka kopanngoa joang e le hore metsi a tsamaee hantle? Ka tlase, ka kopo bona electroacoustic Moetsi oa PCB ho sekaseka ts'ebetso ena ea boselamose bakeng sa hau - ho teba ha koporo (PTH). Koporo ea Immersion ke khutsufatso ea Eletcroless Plating Copper, e tsejoang hape e le Plated Through Hole, e khutsufalitsoeng e le PTH, e leng karabelo ea autocatalytic redox.Ka mor'a hore boto ea lihlopha tse peli kapa tse ngata li phuntsoe, ts'ebetso ea PTH e etsoa. Karolo ea PTH: Karolong e ka tlase ea lerako la lesoba le sa tsitsang le chekiloeng, karolo e tšesaane ea koporo ea lik'hemik'hale e kenngoa ka lik'hemik'hale hore e sebetse e le karoloana bakeng sa electroplating ea koporo e latelang. PTH mokhoa oa ho bola: alkaline degreasing → ho hlatsuoa ha metsi a mahareng kapa a phahameng → ho khoasolla (micro-etching) → ho hlatsuoa ha motsoako oa bobeli → presoak → butle-butle
Tlhaloso e qaqileng ea ts'ebetso ea PTH: 1. Ho tlosoa ha alkaline: tlosa matheba a oli, menoana, li-oxide le lerōle ka har'a likoti;fetola lebota la pore ho tloha ho tefiso e mpe ho ea ho tefiso e ntle, e loketseng bakeng sa papatso ea colloidal palladium ts'ebetsong e latelang;ho hloekisa ka mor'a degreasing lokela ho ka tieo ho latela litataiso Phetha teko ka qoelisoa koporo backlight teko. 2. Micro-etching: tlosa li-oxides holim'a boto, u hlakole holim'a boto, 'me u netefatse hore ho na le matla a matle a tlamahano pakeng tsa lera le latelang la ho qoelisoa la koporo le koporo e ka tlaase ea substrate;sebaka se secha sa koporo se na le ts'ebetso e matla 'me se ka bapa hantle colloids palladium; 3. Pre-dip: Haholo-holo ke ho sireletsa tanka ea palladium ho tsoa tšilafalong ea metsi a tanka ea pretreatment le ho lelefatsa bophelo ba tšebeletso ea tanka ea palladium.Likarolo tse ka sehloohong li tšoana le tsa tanka ea palladium ntle le palladium chloride, e ka kolobisang lebota la lesoba ka mokhoa o atlehileng le ho nolofatsa ts'ebetso e latelang ea mokelikeli.Kenya sekoti ka nako bakeng sa ts'ebetso e lekaneng le e sebetsang; 4. Ts'ebetso: Kamora phetoho ea polarity ea alkaline degreasing pretreatment, marako a pore a qosoang hantle a ka monya likaroloana tse lekaneng tsa colloidal palladium tse qosoang hampe ho netefatsa ho ts'oana, ho tsoela pele le ho kopana ha pula ea koporo e latelang;Ka hona, ho fokotsa le ho kenya ts'ebetsong ho bohlokoa haholo ho boleng ba kopo e latelang ea koporo.Lintlha tsa taolo: nako e behiloeng;maemo a tloaelehileng a stannous ion le chloride ion concentration;matla a khoheli a itseng, acidity le mocheso le tsona li bohlokoa haholo, 'me li tlameha ho laoloa ka thata ho latela litaelo tsa ts'ebetso. 5. Degumming: tlosa li-ion tsa stannous tse koahetsoeng ka ntle ho likaroloana tsa colloidal palladium ho pepesa mokokotlo oa palladium ka likaroloana tsa colloidal ka ho toba le ka katleho ho etsa hore lik'hemik'hale tsa koporo li be le pula.Boiphihlelo bo bontša hore ho molemo ho sebelisa fluoroboric acid e le moemeli oa degumming.s Khetho. 6. Pula ea koporo: The electroless copper precipitation autocatalytic reaction e susumetsoa ke ts'ebetso ea nucleus ea palladium.Koporo ea lik'hemik'hale e sa tsoa thehoa le hydrogen e hlahisoang ke hydrogen e ka sebelisoa e le li-catalysts tsa karabelo ho susumetsa karabelo, e le hore karabelo ea pula ea koporo e tsoele pele.Ka mor'a ho sebetsana le mohato ona, lera la koporo ea lik'hemik'hale le ka behoa holim'a boto kapa leboteng la lesoba.Nakong ea ts'ebetso, mokelikeli oa ho hlapa o lokela ho bolokoa tlas'a pherekano e tloaelehileng ea moea ho fetola koporo e qhibilihang haholoanyane.
Boleng ba ts'ebetso ea ho qoelisoa ka koporo bo amana ka ho toba le boleng ba boto ea potoloho ea tlhahiso.Ke mohloli o ka sehloohong ts'ebetso ea li-vias tse futsanehileng, li-circuits tse bulehileng le tse khutšoane, 'me ha ho bonolo bakeng sa tlhahlobo ea pono.Ts'ebetso e latelang e ka hlahlojoa feela ka liteko tse senyang.Tlhahlobo e sebetsang le tlhokomelo ea a Boto e le 'ngoe ea PCB , kahoo hang ha bothata bo hlaha, e tlameha ho ba bothata ba batch, le haeba tlhahlobo e ke ke ea phethoa, sehlahisoa sa ho qetela se tla baka likotsi tse kholo tse patiloeng ho boleng, 'me se ka hlakoloa feela ka lihlopha, kahoo se tlameha ho sebetsoa ka thata ho latela litekanyetso tsa litaelo tsa ts'ebetso. 
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